Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits)
[PATCH] devfs: Remove it from the feature_removal.txt file
[PATCH] devfs: Last little devfs cleanups throughout the kernel tree.
[PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
[PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed
[PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed
[PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed
[PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
[PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
[PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
[PATCH] devfs: Remove devfs_remove() function from the kernel tree
[PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree
[PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree
[PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree
[PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
[PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree
[PATCH] devfs: Remove devfs support from the sound subsystem
[PATCH] devfs: Remove devfs support from the ide subsystem.
[PATCH] devfs: Remove devfs support from the serial subsystem
[PATCH] devfs: Remove devfs from the init code
[PATCH] devfs: Remove devfs from the partition code
...
diff --git a/Documentation/Changes b/Documentation/Changes
index b02f476..48827207 100644
--- a/Documentation/Changes
+++ b/Documentation/Changes
@@ -181,8 +181,8 @@
--------------------
A driver has been added to allow updating of Intel IA32 microcode,
-accessible as both a devfs regular file and as a normal (misc)
-character device. If you are not using devfs you may need to:
+accessible as a normal (misc) character device. If you are not using
+udev you may need to:
mkdir /dev/cpu
mknod /dev/cpu/microcode c 10 184
@@ -201,7 +201,9 @@
udev
----
udev is a userspace application for populating /dev dynamically with
-only entries for devices actually present. udev replaces devfs.
+only entries for devices actually present. udev replaces the basic
+functionality of devfs, while allowing persistant device naming for
+devices.
FUSE
----
@@ -231,18 +233,13 @@
enable it to operate over diverse media layers. If you use PPP,
upgrade pppd to at least 2.4.0.
-If you are not using devfs, you must have the device file /dev/ppp
+If you are not using udev, you must have the device file /dev/ppp
which can be made by:
mknod /dev/ppp c 108 0
as root.
-If you use devfsd and build ppp support as modules, you will need
-the following in your /etc/devfsd.conf file:
-
-LOOKUP PPP MODLOAD
-
Isdn4k-utils
------------
diff --git a/Documentation/DocBook/kernel-api.tmpl b/Documentation/DocBook/kernel-api.tmpl
index 3630a0d..1ae4dc0 100644
--- a/Documentation/DocBook/kernel-api.tmpl
+++ b/Documentation/DocBook/kernel-api.tmpl
@@ -348,11 +348,6 @@
</sect1>
</chapter>
- <chapter id="devfs">
- <title>The Device File System</title>
-!Efs/devfs/base.c
- </chapter>
-
<chapter id="sysfs">
<title>The Filesystem for Exporting Kernel Objects</title>
!Efs/sysfs/file.c
diff --git a/Documentation/README.DAC960 b/Documentation/README.DAC960
index 98ea617..0e8f618 100644
--- a/Documentation/README.DAC960
+++ b/Documentation/README.DAC960
@@ -78,9 +78,9 @@
terms are in use in the Mylex documentation; I have chosen to standardize on
the more generic "Logical Drive" and "Drive Group".
-DAC960 RAID disk devices are named in the style of the Device File System
-(DEVFS). The device corresponding to Logical Drive D on Controller C is
-referred to as /dev/rd/cCdD, and the partitions are called /dev/rd/cCdDp1
+DAC960 RAID disk devices are named in the style of the obsolete Device File
+System (DEVFS). The device corresponding to Logical Drive D on Controller C
+is referred to as /dev/rd/cCdD, and the partitions are called /dev/rd/cCdDp1
through /dev/rd/cCdDp7. For example, partition 3 of Logical Drive 5 on
Controller 2 is referred to as /dev/rd/c2d5p3. Note that unlike with SCSI
disks the device names will not change in the event of a disk drive failure.
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index b1c6c70..1cbbb8e 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -6,17 +6,6 @@
---------------------------
-What: devfs
-When: July 2005
-Files: fs/devfs/*, include/linux/devfs_fs*.h and assorted devfs
- function calls throughout the kernel tree
-Why: It has been unmaintained for a number of years, has unfixable
- races, contains a naming policy within the kernel that is
- against the LSB, and can be replaced by using udev.
-Who: Greg Kroah-Hartman <greg@kroah.com>
-
----------------------------
-
What: RAW driver (CONFIG_RAW_DRIVER)
When: December 2005
Why: declared obsolete since kernel 2.6.3
diff --git a/Documentation/filesystems/devfs/ChangeLog b/Documentation/filesystems/devfs/ChangeLog
deleted file mode 100644
index e5aba52..0000000
--- a/Documentation/filesystems/devfs/ChangeLog
+++ /dev/null
@@ -1,1977 +0,0 @@
-/* -*- auto-fill -*- */
-===============================================================================
-Changes for patch v1
-
-- creation of devfs
-
-- modified miscellaneous character devices to support devfs
-===============================================================================
-Changes for patch v2
-
-- bug fix with manual inode creation
-===============================================================================
-Changes for patch v3
-
-- bugfixes
-
-- documentation improvements
-
-- created a couple of scripts (one to save&restore a devfs and the
- other to set up compatibility symlinks)
-
-- devfs support for SCSI discs. New name format is: sd_hHcCiIlL
-===============================================================================
-Changes for patch v4
-
-- bugfix for the directory reading code
-
-- bugfix for compilation with kerneld
-
-- devfs support for generic hard discs
-
-- rationalisation of the various watchdog drivers
-===============================================================================
-Changes for patch v5
-
-- support for mounting directly from entries in the devfs (it doesn't
- need to be mounted to do this), including the root filesystem.
- Mounting of swap partitions also works. Hence, now if you set
- CONFIG_DEVFS_ONLY to 'Y' then you won't be able to access your discs
- via ordinary device nodes. Naturally, the default is 'N' so that you
- can still use your old device nodes. If you want to mount from devfs
- entries, make sure you use: append = "root=/dev/sd_..." in your
- lilo.conf. It seems LILO looks for the device number (major&minor)
- and writes that into the kernel image :-(
-
-- support for character memory devices (/dev/null, /dev/zero, /dev/full
- and so on). Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-===============================================================================
-Changes for patch v6
-
-- support for subdirectories
-
-- support for symbolic links (created by devfs_mk_symlink(), no
- support yet for creation via symlink(2))
-
-- SCSI disc naming now cast in stone, with the format:
- /dev/sd/c0b1t2u3 controller=0, bus=1, ID=2, LUN=3, whole disc
- /dev/sd/c0b1t2u3p4 controller=0, bus=1, ID=2, LUN=3, 4th partition
-
-- loop devices now appear in devfs
-
-- tty devices, console, serial ports, etc. now appear in devfs
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- bugs with mounting devfs-only devices now fixed
-===============================================================================
-Changes for patch v7
-
-- SCSI CD-ROMS, tapes and generic devices now appear in devfs
-===============================================================================
-Changes for patch v8
-
-- bugfix with no-rewind SCSI tapes
-
-- RAMDISCs now appear in devfs
-
-- better cleaning up of devfs entries created by various modules
-
-- interface change to <devfs_register>
-===============================================================================
-Changes for patch v9
-
-- the v8 patch was corrupted somehow, which would affect the patch for
- linux/fs/filesystems.c
- I've also fixed the v8 patch file on the WWW
-
-- MetaDevices (/dev/md*) should now appear in devfs
-===============================================================================
-Changes for patch v10
-
-- bugfix in meta device support for devfs
-
-- created this ChangeLog file
-
-- added devfs support to the floppy driver
-
-- added support for creating sockets in a devfs
-===============================================================================
-Changes for patch v11
-
-- added DEVFS_FL_HIDE_UNREG flag
-
-- incorporated better patch for ttyname() in libc 5.4.43 from H.J. Lu.
-
-- interface change to <devfs_mk_symlink>
-
-- support for creating symlinks with symlink(2)
-
-- parallel port printer (/dev/lp*) now appears in devfs
-===============================================================================
-Changes for patch v12
-
-- added inode check to <devfs_fill_file> function
-
-- improved devfs support when mounting from devfs
-
-- added call to <<release>> operation when removing swap areas on
- devfs devices
-
-- increased NR_SUPER to 128 to support large numbers of devfs mounts
- (for chroot(2) gaols)
-
-- fixed bug in SCSI disc support: was generating incorrect minors if
- SCSI ID's did not start at 0 and increase by 1
-
-- support symlink traversal when mounting root
-===============================================================================
-Changes for patch v13
-
-- added devfs support to soundcard driver
- Thanks to Eric Dumas <dumas@linux.eu.org> and
- C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- added devfs support to the joystick driver
-
-- loop driver now has it's own subdirectory "/dev/loop/"
-
-- created <devfs_get_flags> and <devfs_set_flags> functions
-
-- fix problem with SCSI disc compatibility names (sd{a,b,c,d,e,f})
- which assumes ID's start at 0 and increase by 1. Also only create
- devfs entries for SCSI disc partitions which actually exist
- Show new names in partition check
- Thanks to Jakub Jelinek <jj@sunsite.ms.mff.cuni.cz>
-===============================================================================
-Changes for patch v14
-
-- bug fix in floppy driver: would not compile without
- CONFIG_DEVFS_FS='Y'
- Thanks to Jurgen Botz <jbotz@nova.botz.org>
-
-- bug fix in loop driver
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- do not create devfs entries for printers not configured
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- do not create devfs entries for serial ports not present
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- ensure <tty_register_devfs> is exported from tty_io.c
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- allow unregistering of devfs symlink entries
-
-- fixed bug in SCSI disc naming introduced in last patch version
-===============================================================================
-Changes for patch v15
-
-- ported to kernel 2.1.81
-===============================================================================
-Changes for patch v16
-
-- created <devfs_set_symlink_destination> function
-
-- moved DEVFS_SUPER_MAGIC into header file
-
-- added DEVFS_FL_HIDE flag
-
-- created <devfs_get_maj_min>
-
-- created <devfs_get_handle_from_inode>
-
-- fixed bugs in searching by major&minor
-
-- changed interface to <devfs_unregister>, <devfs_fill_file> and
- <devfs_find_handle>
-
-- fixed inode times when symlink created with symlink(2)
-
-- change tty driver to do auto-creation of devfs entries
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- fixed bug in genhd.c: whole disc (non-SCSI) was not registered to
- devfs
-
-- updated libc 5.4.43 patch for ttyname()
-===============================================================================
-Changes for patch v17
-
-- added CONFIG_DEVFS_TTY_COMPAT
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- bugfix in devfs support for drivers/char/lp.c
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- clean up serial driver so that PCMCIA devices unregister correctly
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- fixed bug in genhd.c: whole disc (non-SCSI) was not registered to
- devfs [was missing in patch v16]
-
-- updated libc 5.4.43 patch for ttyname() [was missing in patch v16]
-
-- all SCSI devices now registered in /dev/sg
-
-- support removal of devfs entries via unlink(2)
-===============================================================================
-Changes for patch v18
-
-- added floppy/?u720 floppy entry
-
-- fixed kerneld support for entries in devfs subdirectories
-
-- incorporated latest patch for ttyname() in libc 5.4.43 from H.J. Lu.
-===============================================================================
-Changes for patch v19
-
-- bug fix when looking up unregistered entries: kerneld was not called
-
-- fixes for kernel 2.1.86 (now requires 2.1.86)
-===============================================================================
-Changes for patch v20
-
-- only create available floppy entries
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- new IDE naming scheme following SCSI format (i.e. /dev/id/c0b0t0u0p1
- instead of /dev/hda1)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- new XT disc naming scheme following SCSI format (i.e. /dev/xd/c0t0p1
- instead of /dev/xda1)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- new non-standard CD-ROM names (i.e. /dev/sbp/c#t#)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- allow symlink traversal when mounting the root filesystem
-
-- Create entries for MD devices at MD init
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-===============================================================================
-Changes for patch v21
-
-- ported to kernel 2.1.91
-===============================================================================
-Changes for patch v22
-
-- SCSI host number patch ("scsihosts=" kernel option)
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-===============================================================================
-Changes for patch v23
-
-- Fixed persistence bug with device numbers for manually created
- device files
-
-- Fixed problem with recreating symlinks with different content
-
-- Added CONFIG_DEVFS_MOUNT (mount devfs on /dev at boot time)
-===============================================================================
-Changes for patch v24
-
-- Switched from CONFIG_KERNELD to CONFIG_KMOD: module autoloading
- should now work again
-
-- Hide entries which are manually unlinked
-
-- Always invalidate devfs dentry cache when registering entries
-
-- Support removal of devfs directories via rmdir(2)
-
-- Ensure directories created by <devfs_mk_dir> are visible
-
-- Default no access for "other" for floppy device
-===============================================================================
-Changes for patch v25
-
-- Updates to CREDITS file and minor IDE numbering change
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- Invalidate devfs dentry cache when making directories
-
-- Invalidate devfs dentry cache when removing entries
-
-- More informative message if root FS mount fails when devfs
- configured
-
-- Fixed persistence bug with fifos
-===============================================================================
-Changes for patch v26
-
-- ported to kernel 2.1.97
-
-- Changed serial directory from "/dev/serial" to "/dev/tts" and
- "/dev/consoles" to "/dev/vc" to be more friendly to new procps
-===============================================================================
-Changes for patch v27
-
-- Added support for IDE4 and IDE5
- Thanks to Andrzej Krzysztofowicz <ankry@green.mif.pg.gda.pl>
-
-- Documented "scsihosts=" boot parameter
-
-- Print process command when debugging kerneld/kmod
-
-- Added debugging for register/unregister/change operations
-
-- Added "devfs=" boot options
-
-- Hide unregistered entries by default
-===============================================================================
-Changes for patch v28
-
-- No longer lock/unlock superblock in <devfs_put_super> (cope with
- recent VFS interface change)
-
-- Do not automatically change ownership/protection of /dev/tty
-
-- Drop negative dentries when they are released
-
-- Manage dcache more efficiently
-===============================================================================
-Changes for patch v29
-
-- Added DEVFS_FL_AUTO_DEVNUM flag
-===============================================================================
-Changes for patch v30
-
-- No longer set unnecessary methods
-
-- Ported to kernel 2.1.99-pre3
-===============================================================================
-Changes for patch v31
-
-- Added PID display to <call_kerneld> debugging message
-
-- Added "diread" and "diwrite" options
-
-- Ported to kernel 2.1.102
-
-- Fixed persistence problem with permissions
-===============================================================================
-Changes for patch v32
-
-- Fixed devfs support in drivers/block/md.c
-===============================================================================
-Changes for patch v33
-
-- Support legacy device nodes
-
-- Fixed bug where recreated inodes were hidden
-
-- New IDE naming scheme: everything is under /dev/ide
-===============================================================================
-Changes for patch v34
-
-- Improved debugging in <get_vfs_inode>
-
-- Prevent duplicate calls to <devfs_mk_dir> in SCSI layer
-
-- No longer free old dentries in <devfs_mk_dir>
-
-- Free all dentries for a given entry when deleting inodes
-===============================================================================
-Changes for patch v35
-
-- Ported to kernel 2.1.105 (sound driver changes)
-===============================================================================
-Changes for patch v36
-
-- Fixed sound driver port
-===============================================================================
-Changes for patch v37
-
-- Minor documentation tweaks
-===============================================================================
-Changes for patch v38
-
-- More documentation tweaks
-
-- Fix for sound driver port
-
-- Removed ttyname-patch (grab libc 5.4.44 instead)
-
-- Ported to kernel 2.1.107-pre2 (loop driver fix)
-===============================================================================
-Changes for patch v39
-
-- Ported to kernel 2.1.107 (hd.c hunk broke due to spelling "fixes"). Sigh
-
-- Removed many #ifdef's, replaced with trickery in include/devfs_fs.h
-===============================================================================
-Changes for patch v40
-
-- Fix for sound driver port
-
-- Limit auto-device numbering to majors 128 to 239
-===============================================================================
-Changes for patch v41
-
-- Fixed inode times persistence problem
-===============================================================================
-Changes for patch v42
-
-- Ported to kernel 2.1.108 (drivers/scsi/hosts.c hunk broke)
-===============================================================================
-Changes for patch v43
-
-- Fixed spelling in <devfs_readlink> debug
-
-- Fixed bug in <devfs_setup> parsing "dilookup"
-
-- More #ifdef's removed
-
-- Supported Sparc keyboard (/dev/kbd)
-
-- Supported DSP56001 digital signal processor (/dev/dsp56k)
-
-- Supported Apple Desktop Bus (/dev/adb)
-
-- Supported Coda network file system (/dev/cfs*)
-===============================================================================
-Changes for patch v44
-
-- Fixed devfs inode leak when manually recreating inodes
-
-- Fixed permission persistence problem when recreating inodes
-===============================================================================
-Changes for patch v45
-
-- Ported to kernel 2.1.110
-===============================================================================
-Changes for patch v46
-
-- Ported to kernel 2.1.112-pre1
-
-- Removed harmless "unused variable" compiler warning
-
-- Fixed modes for manually recreated device nodes
-===============================================================================
-Changes for patch v47
-
-- Added NULL devfs inode warning in <devfs_read_inode>
-
-- Force all inode nlink values to 1
-===============================================================================
-Changes for patch v48
-
-- Added "dimknod" option
-
-- Set inode nlink to 0 when freeing dentries
-
-- Added support for virtual console capture devices (/dev/vcs*)
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Fixed modes for manually recreated symlinks
-===============================================================================
-Changes for patch v49
-
-- Ported to kernel 2.1.113
-===============================================================================
-Changes for patch v50
-
-- Fixed bugs in recreated directories and symlinks
-===============================================================================
-Changes for patch v51
-
-- Improved robustness of rc.devfs script
- Thanks to Roderich Schupp <rsch@experteam.de>
-
-- Fixed bugs in recreated device nodes
-
-- Fixed bug in currently unused <devfs_get_handle_from_inode>
-
-- Defined new <devfs_handle_t> type
-
-- Improved debugging when getting entries
-
-- Fixed bug where directories could be emptied
-
-- Ported to kernel 2.1.115
-===============================================================================
-Changes for patch v52
-
-- Replaced dummy .epoch inode with .devfsd character device
-
-- Modified rc.devfs to take account of above change
-
-- Removed spurious driver warning messages when CONFIG_DEVFS_FS=n
-
-- Implemented devfsd protocol revision 0
-===============================================================================
-Changes for patch v53
-
-- Ported to kernel 2.1.116 (kmod change broke hunk)
-
-- Updated Documentation/Configure.help
-
-- Test and tty pattern patch for rc.devfs script
- Thanks to Roderich Schupp <rsch@experteam.de>
-
-- Added soothing message to warning in <devfs_d_iput>
-===============================================================================
-Changes for patch v54
-
-- Ported to kernel 2.1.117
-
-- Fixed default permissions in sound driver
-
-- Added support for frame buffer devices (/dev/fb*)
-===============================================================================
-Changes for patch v55
-
-- Ported to kernel 2.1.119
-
-- Use GCC extensions for structure initialisations
-
-- Implemented async open notification
-
-- Incremented devfsd protocol revision to 1
-===============================================================================
-Changes for patch v56
-
-- Ported to kernel 2.1.120-pre3
-
-- Moved async open notification to end of <devfs_open>
-===============================================================================
-Changes for patch v57
-
-- Ported to kernel 2.1.121
-
-- Prepended "/dev/" to module load request
-
-- Renamed <call_kerneld> to <call_kmod>
-
-- Created sample modules.conf file
-===============================================================================
-Changes for patch v58
-
-- Fixed typo "AYSNC" -> "ASYNC"
-===============================================================================
-Changes for patch v59
-
-- Added open flag for files
-===============================================================================
-Changes for patch v60
-
-- Ported to kernel 2.1.123-pre2
-===============================================================================
-Changes for patch v61
-
-- Set i_blocks=0 and i_blksize=1024 in <devfs_read_inode>
-===============================================================================
-Changes for patch v62
-
-- Ported to kernel 2.1.123
-===============================================================================
-Changes for patch v63
-
-- Ported to kernel 2.1.124-pre2
-===============================================================================
-Changes for patch v64
-
-- Fixed Unix98 pty support
-
-- Increased buffer size in <get_partition_list> to avoid crash and
- burn
-===============================================================================
-Changes for patch v65
-
-- More Unix98 pty support fixes
-
-- Added test for empty <<name>> in <devfs_find_handle>
-
-- Renamed <generate_path> to <devfs_generate_path> and published
-
-- Created /dev/root symlink
- Thanks to Roderich Schupp <rsch@ExperTeam.de>
- with further modifications by me
-===============================================================================
-Changes for patch v66
-
-- Yet more Unix98 pty support fixes (now tested)
-
-- Created <devfs_get_fops>
-
-- Support media change checks when CONFIG_DEVFS_ONLY=y
-
-- Abolished Unix98-style PTY names for old PTY devices
-===============================================================================
-Changes for patch v67
-
-- Added inline declaration for dummy <devfs_generate_path>
-
-- Removed spurious "unable to register... in devfs" messages when
- CONFIG_DEVFS_FS=n
-
-- Fixed misc. devices when CONFIG_DEVFS_FS=n
-
-- Limit auto-device numbering to majors 144 to 239
-===============================================================================
-Changes for patch v68
-
-- Hide unopened virtual consoles from directory listings
-
-- Added support for video capture devices
-
-- Ported to kernel 2.1.125
-===============================================================================
-Changes for patch v69
-
-- Fix for CONFIG_VT=n
-===============================================================================
-Changes for patch v70
-
-- Added support for non-OSS/Free sound cards
-===============================================================================
-Changes for patch v71
-
-- Ported to kernel 2.1.126-pre2
-===============================================================================
-Changes for patch v72
-
-- #ifdef's for CONFIG_DEVFS_DISABLE_OLD_NAMES removed
-===============================================================================
-Changes for patch v73
-
-- CONFIG_DEVFS_DISABLE_OLD_NAMES replaced with "nocompat" boot option
-
-- CONFIG_DEVFS_BOOT_OPTIONS removed: boot options always available
-===============================================================================
-Changes for patch v74
-
-- Removed CONFIG_DEVFS_MOUNT and "mount" boot option and replaced with
- "nomount" boot option
-
-- Documentation updates
-
-- Updated sample modules.conf
-===============================================================================
-Changes for patch v75
-
-- Updated sample modules.conf
-
-- Remount devfs after initrd finishes
-
-- Ported to kernel 2.1.127
-
-- Added support for ISDN
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-===============================================================================
-Changes for patch v76
-
-- Updated an email address in ChangeLog
-
-- CONFIG_DEVFS_ONLY replaced with "only" boot option
-===============================================================================
-Changes for patch v77
-
-- Added DEVFS_FL_REMOVABLE flag
-
-- Check for disc change when listing directories with removable media
- devices
-
-- Use DEVFS_FL_REMOVABLE in sd.c
-
-- Ported to kernel 2.1.128
-===============================================================================
-Changes for patch v78
-
-- Only call <scan_dir_for_removable> on first call to <devfs_readdir>
-
-- Ported to kernel 2.1.129-pre5
-
-- ISDN support improvements
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-===============================================================================
-Changes for patch v79
-
-- Ported to kernel 2.1.130
-
-- Renamed miscdevice "apm" to "apm_bios" to be consistent with
- devices.txt
-===============================================================================
-Changes for patch v80
-
-- Ported to kernel 2.1.131
-
-- Updated <devfs_rmdir> for VFS change in 2.1.131
-===============================================================================
-Changes for patch v81
-
-- Fixed permissions on /dev/ptmx
-===============================================================================
-Changes for patch v82
-
-- Ported to kernel 2.1.132-pre4
-
-- Changed initial permissions on /dev/pts/*
-
-- Created <devfs_mk_compat>
-
-- Added "symlinks" boot option
-
-- Changed devfs_register_blkdev() back to register_blkdev() for IDE
-
-- Check for partitions on removable media in <devfs_lookup>
-===============================================================================
-Changes for patch v83
-
-- Fixed support for ramdisc when using string-based root FS name
-
-- Ported to kernel 2.2.0-pre1
-===============================================================================
-Changes for patch v84
-
-- Ported to kernel 2.2.0-pre7
-===============================================================================
-Changes for patch v85
-
-- Compile fixes for driver/sound/sound_common.c (non-module) and
- drivers/isdn/isdn_common.c
- Thanks to Christophe Leroy <christophe.leroy5@capway.com>
-
-- Added support for registering regular files
-
-- Created <devfs_set_file_size>
-
-- Added /dev/cpu/mtrr as an alternative interface to /proc/mtrr
-
-- Update devfs inodes from entries if not changed through FS
-===============================================================================
-Changes for patch v86
-
-- Ported to kernel 2.2.0-pre9
-===============================================================================
-Changes for patch v87
-
-- Fixed bug when mounting non-devfs devices in a devfs
-===============================================================================
-Changes for patch v88
-
-- Fixed <devfs_fill_file> to only initialise temporary inodes
-
-- Trap for NULL fops in <devfs_register>
-
-- Return -ENODEV in <devfs_fill_file> for non-driver inodes
-
-- Fixed bug when unswapping non-devfs devices in a devfs
-===============================================================================
-Changes for patch v89
-
-- Switched to C data types in include/linux/devfs_fs.h
-
-- Switched from PATH_MAX to DEVFS_PATHLEN
-
-- Updated Documentation/filesystems/devfs/modules.conf to take account
- of reverse scanning (!) by modprobe
-
-- Ported to kernel 2.2.0
-===============================================================================
-Changes for patch v90
-
-- CONFIG_DEVFS_DISABLE_OLD_TTY_NAMES replaced with "nottycompat" boot
- option
-
-- CONFIG_DEVFS_TTY_COMPAT removed: existing "symlinks" boot option now
- controls this. This means you must have libc 5.4.44 or later, or a
- recent version of libc 6 if you use the "symlinks" option
-===============================================================================
-Changes for patch v91
-
-- Switch from <devfs_mk_symlink> to <devfs_mk_compat> in
- drivers/char/vc_screen.c to fix problems with Midnight Commander
-===============================================================================
-Changes for patch v92
-
-- Ported to kernel 2.2.2-pre5
-===============================================================================
-Changes for patch v93
-
-- Modified <sd_name> in drivers/scsi/sd.c to cope with devices that
- don't exist (which happens with new RAID autostart code printk()s)
-===============================================================================
-Changes for patch v94
-
-- Fixed bug in joystick driver: only first joystick was registered
-===============================================================================
-Changes for patch v95
-
-- Fixed another bug in joystick driver
-
-- Fixed <devfsd_read> to not overrun event buffer
-===============================================================================
-Changes for patch v96
-
-- Ported to kernel 2.2.5-2
-
-- Created <devfs_auto_unregister>
-
-- Fixed bugs: compatibility entries were not unregistered for:
- loop driver
- floppy driver
- RAMDISC driver
- IDE tape driver
- SCSI CD-ROM driver
- SCSI HDD driver
-===============================================================================
-Changes for patch v97
-
-- Fixed bugs: compatibility entries were not unregistered for:
- ALSA sound driver
- partitions in generic disc driver
-
-- Don't return unregistred entries in <devfs_find_handle>
-
-- Panic in <devfs_unregister> if entry unregistered
-
-- Don't panic in <devfs_auto_unregister> for duplicates
-===============================================================================
-Changes for patch v98
-
-- Don't unregister already unregistered entries in <unregister>
-
-- Register entry in <sd_detect>
-
-- Unregister entry in <sd_detach>
-
-- Changed to <devfs_*register_chrdev> in drivers/char/tty_io.c
-
-- Ported to kernel 2.2.7
-===============================================================================
-Changes for patch v99
-
-- Ported to kernel 2.2.8
-
-- Fixed bug in drivers/scsi/sd.c when >16 SCSI discs
-
-- Disable warning messages when unable to read partition table for
- removable media
-===============================================================================
-Changes for patch v100
-
-- Ported to kernel 2.3.1-pre5
-
-- Added "oops-on-panic" boot option
-
-- Improved debugging in <devfs_register> and <devfs_unregister>
-
-- Register entry in <sr_detect>
-
-- Unregister entry in <sr_detach>
-
-- Register entry in <sg_detect>
-
-- Unregister entry in <sg_detach>
-
-- Added support for ALSA drivers
-===============================================================================
-Changes for patch v101
-
-- Ported to kernel 2.3.2
-===============================================================================
-Changes for patch v102
-
-- Update serial driver to register PCMCIA entries
- Thanks to Roch-Alexandre Nomine-Beguin <roch@samarkand.infini.fr>
-
-- Updated an email address in ChangeLog
-
-- Hide virtual console capture entries from directory listings when
- corresponding console device is not open
-===============================================================================
-Changes for patch v103
-
-- Ported to kernel 2.3.3
-===============================================================================
-Changes for patch v104
-
-- Added documentation for some functions
-
-- Added "doc" target to fs/devfs/Makefile
-
-- Added "v4l" directory for video4linux devices
-
-- Replaced call to <devfs_unregister> in <sd_detach> with call to
- <devfs_register_partitions>
-
-- Moved registration for sr and sg drivers from detect() to attach()
- methods
-
-- Register entries in <st_attach> and unregister in <st_detach>
-
-- Work around IDE driver treating CD-ROM as gendisk
-
-- Use <sed> instead of <tr> in rc.devfs
-
-- Updated ToDo list
-
-- Removed "oops-on-panic" boot option: now always Oops
-===============================================================================
-Changes for patch v105
-
-- Unregister SCSI host from <scsi_host_no_list> in <scsi_unregister>
- Thanks to Zoltán Böszörményi <zboszor@mail.externet.hu>
-
-- Don't save /dev/log in rc.devfs
-
-- Ported to kernel 2.3.4-pre1
-===============================================================================
-Changes for patch v106
-
-- Fixed silly typo in drivers/scsi/st.c
-
-- Improved debugging in <devfs_register>
-===============================================================================
-Changes for patch v107
-
-- Added "diunlink" and "nokmod" boot options
-
-- Removed superfluous warning message in <devfs_d_iput>
-===============================================================================
-Changes for patch v108
-
-- Remove entries when unloading sound module
-===============================================================================
-Changes for patch v109
-
-- Ported to kernel 2.3.6-pre2
-===============================================================================
-Changes for patch v110
-
-- Took account of change to <d_alloc_root>
-===============================================================================
-Changes for patch v111
-
-- Created separate event queue for each mounted devfs
-
-- Removed <devfs_invalidate_dcache>
-
-- Created new ioctl()s for devfsd
-
-- Incremented devfsd protocol revision to 3
-
-- Fixed bug when re-creating directories: contents were lost
-
-- Block access to inodes until devfsd updates permissions
-===============================================================================
-Changes for patch v112
-
-- Modified patch so it applies against 2.3.5 and 2.3.6
-
-- Updated an email address in ChangeLog
-
-- Do not automatically change ownership/protection of /dev/tty<n>
-
-- Updated sample modules.conf
-
-- Switched to sending process uid/gid to devfsd
-
-- Renamed <call_kmod> to <try_modload>
-
-- Added DEVFSD_NOTIFY_LOOKUP event
-
-- Added DEVFSD_NOTIFY_CHANGE event
-
-- Added DEVFSD_NOTIFY_CREATE event
-
-- Incremented devfsd protocol revision to 4
-
-- Moved kernel-specific stuff to include/linux/devfs_fs_kernel.h
-===============================================================================
-Changes for patch v113
-
-- Ported to kernel 2.3.9
-
-- Restricted permissions on some block devices
-===============================================================================
-Changes for patch v114
-
-- Added support for /dev/netlink
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Return EISDIR rather than EINVAL for read(2) on directories
-
-- Ported to kernel 2.3.10
-===============================================================================
-Changes for patch v115
-
-- Added support for all remaining character devices
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Cleaned up netlink support
-===============================================================================
-Changes for patch v116
-
-- Added support for /dev/parport%d
- Thanks to Tim Waugh <tim@cyberelk.demon.co.uk>
-
-- Fixed parallel port ATAPI tape driver
-
-- Fixed Atari SLM laser printer driver
-===============================================================================
-Changes for patch v117
-
-- Added support for COSA card
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Fixed drivers/char/ppdev.c: missing #include <linux/init.h>
-
-- Fixed drivers/char/ftape/zftape/zftape-init.c
- Thanks to Vladimir Popov <mashgrad@usa.net>
-===============================================================================
-Changes for patch v118
-
-- Ported to kernel 2.3.15-pre3
-
-- Fixed bug in loop driver
-
-- Unregister /dev/lp%d entries in drivers/char/lp.c
- Thanks to Maciej W. Rozycki <macro@ds2.pg.gda.pl>
-===============================================================================
-Changes for patch v119
-
-- Ported to kernel 2.3.16
-===============================================================================
-Changes for patch v120
-
-- Fixed bug in drivers/scsi/scsi.c
-
-- Added /dev/ppp
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Ported to kernel 2.3.17
-===============================================================================
-Changes for patch v121
-
-- Fixed bug in drivers/block/loop.c
-
-- Ported to kernel 2.3.18
-===============================================================================
-Changes for patch v122
-
-- Ported to kernel 2.3.19
-===============================================================================
-Changes for patch v123
-
-- Ported to kernel 2.3.20
-===============================================================================
-Changes for patch v124
-
-- Ported to kernel 2.3.21
-===============================================================================
-Changes for patch v125
-
-- Created <devfs_get_info>, <devfs_set_info>,
- <devfs_get_first_child> and <devfs_get_next_sibling>
- Added <<dir>> parameter to <devfs_register>, <devfs_mk_compat>,
- <devfs_mk_dir> and <devfs_find_handle>
- Work sponsored by SGI
-
-- Fixed apparent bug in COSA driver
-
-- Re-instated "scsihosts=" boot option
-===============================================================================
-Changes for patch v126
-
-- Always create /dev/pts if CONFIG_UNIX98_PTYS=y
-
-- Fixed call to <devfs_mk_dir> in drivers/block/ide-disk.c
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Allow multiple unregistrations
-
-- Created /dev/scsi hierarchy
- Work sponsored by SGI
-===============================================================================
-Changes for patch v127
-
-Work sponsored by SGI
-
-- No longer disable devpts if devfs enabled (caveat emptor)
-
-- Added flags array to struct gendisk and removed code from
- drivers/scsi/sd.c
-
-- Created /dev/discs hierarchy
-===============================================================================
-Changes for patch v128
-
-Work sponsored by SGI
-
-- Created /dev/cdroms hierarchy
-===============================================================================
-Changes for patch v129
-
-Work sponsored by SGI
-
-- Removed compatibility entries for sound devices
-
-- Removed compatibility entries for printer devices
-
-- Removed compatibility entries for video4linux devices
-
-- Removed compatibility entries for parallel port devices
-
-- Removed compatibility entries for frame buffer devices
-===============================================================================
-Changes for patch v130
-
-Work sponsored by SGI
-
-- Added major and minor number to devfsd protocol
-
-- Incremented devfsd protocol revision to 5
-
-- Removed compatibility entries for SoundBlaster CD-ROMs
-
-- Removed compatibility entries for netlink devices
-
-- Removed compatibility entries for SCSI generic devices
-
-- Removed compatibility entries for SCSI tape devices
-===============================================================================
-Changes for patch v131
-
-Work sponsored by SGI
-
-- Support info pointer for all devfs entry types
-
-- Added <<info>> parameter to <devfs_mk_dir> and <devfs_mk_symlink>
-
-- Removed /dev/st hierarchy
-
-- Removed /dev/sg hierarchy
-
-- Removed compatibility entries for loop devices
-
-- Removed compatibility entries for IDE tape devices
-
-- Removed compatibility entries for SCSI CD-ROMs
-
-- Removed /dev/sr hierarchy
-===============================================================================
-Changes for patch v132
-
-Work sponsored by SGI
-
-- Removed compatibility entries for floppy devices
-
-- Removed compatibility entries for RAMDISCs
-
-- Removed compatibility entries for meta-devices
-
-- Removed compatibility entries for SCSI discs
-
-- Created <devfs_make_root>
-
-- Removed /dev/sd hierarchy
-
-- Support "../" when searching devfs namespace
-
-- Created /dev/ide/host* hierarchy
-
-- Supported IDE hard discs in /dev/ide/host* hierarchy
-
-- Removed compatibility entries for IDE discs
-
-- Removed /dev/ide/hd hierarchy
-
-- Supported IDE CD-ROMs in /dev/ide/host* hierarchy
-
-- Removed compatibility entries for IDE CD-ROMs
-
-- Removed /dev/ide/cd hierarchy
-===============================================================================
-Changes for patch v133
-
-Work sponsored by SGI
-
-- Created <devfs_get_unregister_slave>
-
-- Fixed bug in fs/partitions/check.c when rescanning
-===============================================================================
-Changes for patch v134
-
-Work sponsored by SGI
-
-- Removed /dev/sd, /dev/sr, /dev/st and /dev/sg directories
-
-- Removed /dev/ide/hd directory
-
-- Exported <devfs_get_parent>
-
-- Created <devfs_register_tape> and /dev/tapes hierarchy
-
-- Removed /dev/ide/mt hierarchy
-
-- Removed /dev/ide/fd hierarchy
-
-- Ported to kernel 2.3.25
-===============================================================================
-Changes for patch v135
-
-Work sponsored by SGI
-
-- Removed compatibility entries for virtual console capture devices
-
-- Removed unused <devfs_set_symlink_destination>
-
-- Removed compatibility entries for serial devices
-
-- Removed compatibility entries for console devices
-
-- Do not hide entries from devfsd or children
-
-- Removed DEVFS_FL_TTY_COMPAT flag
-
-- Removed "nottycompat" boot option
-
-- Removed <devfs_mk_compat>
-===============================================================================
-Changes for patch v136
-
-Work sponsored by SGI
-
-- Moved BSD pty devices to /dev/pty
-
-- Added DEVFS_FL_WAIT flag
-===============================================================================
-Changes for patch v137
-
-Work sponsored by SGI
-
-- Really fixed bug in fs/partitions/check.c when rescanning
-
-- Support new "disc" naming scheme in <get_removable_partition>
-
-- Allow NULL fops in <devfs_register>
-
-- Removed redundant name functions in SCSI disc and IDE drivers
-===============================================================================
-Changes for patch v138
-
-Work sponsored by SGI
-
-- Fixed old bugs in drivers/block/paride/pt.c, drivers/char/tpqic02.c,
- drivers/net/wan/cosa.c and drivers/scsi/scsi.c
- Thanks to Sergey Kubushin <ksi@ksi-linux.com>
-
-- Fall back to major table if NULL fops given to <devfs_register>
-===============================================================================
-Changes for patch v139
-
-Work sponsored by SGI
-
-- Corrected and moved <get_blkfops> and <get_chrfops> declarations
- from arch/alpha/kernel/osf_sys.c to include/linux/fs.h
-
-- Removed name function from struct gendisk
-
-- Updated devfs FAQ
-===============================================================================
-Changes for patch v140
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.27
-===============================================================================
-Changes for patch v141
-
-Work sponsored by SGI
-
-- Bug fix in arch/m68k/atari/joystick.c
-
-- Moved ISDN and capi devices to /dev/isdn
-===============================================================================
-Changes for patch v142
-
-Work sponsored by SGI
-
-- Bug fix in drivers/block/ide-probe.c (patch confusion)
-===============================================================================
-Changes for patch v143
-
-Work sponsored by SGI
-
-- Bug fix in drivers/block/blkpg.c:partition_name()
-===============================================================================
-Changes for patch v144
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.29
-
-- Removed calls to <devfs_register> from cdu31a, cm206, mcd and mcdx
- CD-ROM drivers: generic driver handles this now
-
-- Moved joystick devices to /dev/joysticks
-===============================================================================
-Changes for patch v145
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.30-pre3
-
-- Register whole-disc entry even for invalid partition tables
-
-- Fixed bug in mounting root FS when initrd enabled
-
-- Fixed device entry leak with IDE CD-ROMs
-
-- Fixed compile problem with drivers/isdn/isdn_common.c
-
-- Moved COSA devices to /dev/cosa
-
-- Support fifos when unregistering
-
-- Created <devfs_register_series> and used in many drivers
-
-- Moved Coda devices to /dev/coda
-
-- Moved parallel port IDE tapes to /dev/pt
-
-- Moved parallel port IDE generic devices to /dev/pg
-===============================================================================
-Changes for patch v146
-
-Work sponsored by SGI
-
-- Removed obsolete DEVFS_FL_COMPAT and DEVFS_FL_TOLERANT flags
-
-- Fixed compile problem with fs/coda/psdev.c
-
-- Reinstate change to <devfs_register_blkdev> in
- drivers/block/ide-probe.c now that fs/isofs/inode.c is fixed
-
-- Switched to <devfs_register_blkdev> in drivers/block/floppy.c,
- drivers/scsi/sr.c and drivers/block/md.c
-
-- Moved DAC960 devices to /dev/dac960
-===============================================================================
-Changes for patch v147
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.32-pre4
-===============================================================================
-Changes for patch v148
-
-Work sponsored by SGI
-
-- Removed kmod support: use devfsd instead
-
-- Moved miscellaneous character devices to /dev/misc
-===============================================================================
-Changes for patch v149
-
-Work sponsored by SGI
-
-- Ensure include/linux/joystick.h is OK for user-space
-
-- Improved debugging in <get_vfs_inode>
-
-- Ensure dentries created by devfsd will be cleaned up
-===============================================================================
-Changes for patch v150
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.34
-===============================================================================
-Changes for patch v151
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.35-pre1
-
-- Created <devfs_get_name>
-===============================================================================
-Changes for patch v152
-
-Work sponsored by SGI
-
-- Updated sample modules.conf
-
-- Ported to kernel 2.3.36-pre1
-===============================================================================
-Changes for patch v153
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.42
-
-- Removed <devfs_fill_file>
-===============================================================================
-Changes for patch v154
-
-Work sponsored by SGI
-
-- Took account of device number changes for /dev/fb*
-===============================================================================
-Changes for patch v155
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.43-pre8
-
-- Moved /dev/tty0 to /dev/vc/0
-
-- Moved sequence number formatting from <_tty_make_name> to drivers
-===============================================================================
-Changes for patch v156
-
-Work sponsored by SGI
-
-- Fixed breakage in drivers/scsi/sd.c due to recent SCSI changes
-===============================================================================
-Changes for patch v157
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.45
-===============================================================================
-Changes for patch v158
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.46-pre2
-===============================================================================
-Changes for patch v159
-
-Work sponsored by SGI
-
-- Fixed drivers/block/md.c
- Thanks to Mike Galbraith <mikeg@weiden.de>
-
-- Documentation fixes
-
-- Moved device registration from <lp_init> to <lp_register>
- Thanks to Tim Waugh <twaugh@redhat.com>
-===============================================================================
-Changes for patch v160
-
-Work sponsored by SGI
-
-- Fixed drivers/char/joystick/joystick.c
- Thanks to Vojtech Pavlik <vojtech@suse.cz>
-
-- Documentation updates
-
-- Fixed arch/i386/kernel/mtrr.c if procfs and devfs not enabled
-
-- Fixed drivers/char/stallion.c
-===============================================================================
-Changes for patch v161
-
-Work sponsored by SGI
-
-- Remove /dev/ide when ide-mod is unloaded
-
-- Fixed bug in drivers/block/ide-probe.c when secondary but no primary
-
-- Added DEVFS_FL_NO_PERSISTENCE flag
-
-- Used new DEVFS_FL_NO_PERSISTENCE flag for Unix98 pty slaves
-
-- Removed unnecessary call to <update_devfs_inode_from_entry> in
- <devfs_readdir>
-
-- Only set auto-ownership for /dev/pty/s*
-===============================================================================
-Changes for patch v162
-
-Work sponsored by SGI
-
-- Set inode->i_size to correct size for symlinks
- Thanks to Jeremy Fitzhardinge <jeremy@goop.org>
-
-- Only give lookup() method to directories to comply with new VFS
- assumptions
-
-- Remove unnecessary tests in symlink methods
-
-- Don't kill existing block ops in <devfs_read_inode>
-
-- Restore auto-ownership for /dev/pty/m*
-===============================================================================
-Changes for patch v163
-
-Work sponsored by SGI
-
-- Don't create missing directories in <devfs_find_handle>
-
-- Removed Documentation/filesystems/devfs/mk-devlinks
-
-- Updated Documentation/filesystems/devfs/README
-===============================================================================
-Changes for patch v164
-
-Work sponsored by SGI
-
-- Fixed CONFIG_DEVFS breakage in drivers/char/serial.c introduced in
- linux-2.3.99-pre6-7
-===============================================================================
-Changes for patch v165
-
-Work sponsored by SGI
-
-- Ported to kernel 2.3.99-pre6
-===============================================================================
-Changes for patch v166
-
-Work sponsored by SGI
-
-- Added CONFIG_DEVFS_MOUNT
-===============================================================================
-Changes for patch v167
-
-Work sponsored by SGI
-
-- Updated Documentation/filesystems/devfs/README
-
-- Updated sample modules.conf
-===============================================================================
-Changes for patch v168
-
-Work sponsored by SGI
-
-- Disabled multi-mount capability (use VFS bindings instead)
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v169
-
-Work sponsored by SGI
-
-- Removed multi-mount code
-
-- Removed compatibility macros: VFS has changed too much
-===============================================================================
-Changes for patch v170
-
-Work sponsored by SGI
-
-- Updated README from master HTML file
-
-- Merged devfs inode into devfs entry
-===============================================================================
-Changes for patch v171
-
-Work sponsored by SGI
-
-- Updated sample modules.conf
-
-- Removed dead code in <devfs_register> which used to call
- <free_dentries>
-
-- Ported to kernel 2.4.0-test2-pre3
-===============================================================================
-Changes for patch v172
-
-Work sponsored by SGI
-
-- Changed interface to <devfs_register>
-
-- Changed interface to <devfs_register_series>
-===============================================================================
-Changes for patch v173
-
-Work sponsored by SGI
-
-- Simplified interface to <devfs_mk_symlink>
-
-- Simplified interface to <devfs_mk_dir>
-
-- Simplified interface to <devfs_find_handle>
-===============================================================================
-Changes for patch v174
-
-Work sponsored by SGI
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v175
-
-Work sponsored by SGI
-
-- DocBook update for fs/devfs/base.c
- Thanks to Tim Waugh <twaugh@redhat.com>
-
-- Removed stale fs/tunnel.c (was never used or completed)
-===============================================================================
-Changes for patch v176
-
-Work sponsored by SGI
-
-- Updated ToDo list
-
-- Removed sample modules.conf: now distributed with devfsd
-
-- Updated README from master HTML file
-
-- Ported to kernel 2.4.0-test3-pre4 (which had devfs-patch-v174)
-===============================================================================
-Changes for patch v177
-
-- Updated README from master HTML file
-
-- Documentation cleanups
-
-- Ensure <devfs_generate_path> terminates string for root entry
- Thanks to Tim Jansen <tim@tjansen.de>
-
-- Exported <devfs_get_name> to modules
-
-- Make <devfs_mk_symlink> send events to devfsd
-
-- Cleaned up option processing in <devfs_setup>
-
-- Fixed bugs in handling symlinks: could leak or cause Oops
-
-- Cleaned up directory handling by separating fops
- Thanks to Alexander Viro <viro@parcelfarce.linux.theplanet.co.uk>
-===============================================================================
-Changes for patch v178
-
-- Fixed handling of inverted options in <devfs_setup>
-===============================================================================
-Changes for patch v179
-
-- Adjusted <try_modload> to account for <devfs_generate_path> fix
-===============================================================================
-Changes for patch v180
-
-- Fixed !CONFIG_DEVFS_FS stub declaration of <devfs_get_info>
-===============================================================================
-Changes for patch v181
-
-- Answered question posed by Al Viro and removed his comments from <devfs_open>
-
-- Moved setting of registered flag after other fields are changed
-
-- Fixed race between <devfsd_close> and <devfsd_notify_one>
-
-- Global VFS changes added bogus BKL to devfsd_close(): removed
-
-- Widened locking in <devfs_readlink> and <devfs_follow_link>
-
-- Replaced <devfsd_read> stack usage with <devfsd_ioctl> kmalloc
-
-- Simplified locking in <devfsd_ioctl> and fixed memory leak
-===============================================================================
-Changes for patch v182
-
-- Created <devfs_*alloc_major> and <devfs_*alloc_devnum>
-
-- Removed broken devnum allocation and use <devfs_alloc_devnum>
-
-- Fixed old devnum leak by calling new <devfs_dealloc_devnum>
-
-- Created <devfs_*alloc_unique_number>
-
-- Fixed number leak for /dev/cdroms/cdrom%d
-
-- Fixed number leak for /dev/discs/disc%d
-===============================================================================
-Changes for patch v183
-
-- Fixed bug in <devfs_setup> which could hang boot process
-===============================================================================
-Changes for patch v184
-
-- Documentation typo fix for fs/devfs/util.c
-
-- Fixed drivers/char/stallion.c for devfs
-
-- Added DEVFSD_NOTIFY_DELETE event
-
-- Updated README from master HTML file
-
-- Removed #include <asm/segment.h> from fs/devfs/base.c
-===============================================================================
-Changes for patch v185
-
-- Made <block_semaphore> and <char_semaphore> in fs/devfs/util.c
- private
-
-- Fixed inode table races by removing it and using inode->u.generic_ip
- instead
-
-- Moved <devfs_read_inode> into <get_vfs_inode>
-
-- Moved <devfs_write_inode> into <devfs_notify_change>
-===============================================================================
-Changes for patch v186
-
-- Fixed race in <devfs_do_symlink> for uni-processor
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v187
-
-- Fixed drivers/char/stallion.c for devfs
-
-- Fixed drivers/char/rocket.c for devfs
-
-- Fixed bug in <devfs_alloc_unique_number>: limited to 128 numbers
-===============================================================================
-Changes for patch v188
-
-- Updated major masks in fs/devfs/util.c up to Linus' "no new majors"
- proclamation. Block: were 126 now 122 free, char: were 26 now 19 free
-
-- Updated README from master HTML file
-
-- Removed remnant of multi-mount support in <devfs_mknod>
-
-- Removed unused DEVFS_FL_SHOW_UNREG flag
-===============================================================================
-Changes for patch v189
-
-- Removed nlink field from struct devfs_inode
-
-- Removed auto-ownership for /dev/pty/* (BSD ptys) and used
- DEVFS_FL_CURRENT_OWNER|DEVFS_FL_NO_PERSISTENCE for /dev/pty/s* (just
- like Unix98 pty slaves) and made /dev/pty/m* rw-rw-rw- access
-===============================================================================
-Changes for patch v190
-
-- Updated README from master HTML file
-
-- Replaced BKL with global rwsem to protect symlink data (quick and
- dirty hack)
-===============================================================================
-Changes for patch v191
-
-- Replaced global rwsem for symlink with per-link refcount
-===============================================================================
-Changes for patch v192
-
-- Removed unnecessary #ifdef CONFIG_DEVFS_FS from arch/i386/kernel/mtrr.c
-
-- Ported to kernel 2.4.10-pre11
-
-- Set inode->i_mapping->a_ops for block nodes in <get_vfs_inode>
-===============================================================================
-Changes for patch v193
-
-- Went back to global rwsem for symlinks (refcount scheme no good)
-===============================================================================
-Changes for patch v194
-
-- Fixed overrun in <devfs_link> by removing function (not needed)
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v195
-
-- Fixed buffer underrun in <try_modload>
-
-- Moved down_read() from <search_for_entry_in_dir> to <find_entry>
-===============================================================================
-Changes for patch v196
-
-- Fixed race in <devfsd_ioctl> when setting event mask
- Thanks to Kari Hurtta <hurtta@leija.mh.fmi.fi>
-
-- Avoid deadlock in <devfs_follow_link> by using temporary buffer
-===============================================================================
-Changes for patch v197
-
-- First release of new locking code for devfs core (v1.0)
-
-- Fixed bug in drivers/cdrom/cdrom.c
-===============================================================================
-Changes for patch v198
-
-- Discard temporary buffer, now use "%s" for dentry names
-
-- Don't generate path in <try_modload>: use fake entry instead
-
-- Use "existing" directory in <_devfs_make_parent_for_leaf>
-
-- Use slab cache rather than fixed buffer for devfsd events
-===============================================================================
-Changes for patch v199
-
-- Removed obsolete usage of DEVFS_FL_NO_PERSISTENCE
-
-- Send DEVFSD_NOTIFY_REGISTERED events in <devfs_mk_dir>
-
-- Fixed locking bug in <devfs_d_revalidate_wait> due to typo
-
-- Do not send CREATE, CHANGE, ASYNC_OPEN or DELETE events from devfsd
- or children
-===============================================================================
-Changes for patch v200
-
-- Ported to kernel 2.5.1-pre2
-===============================================================================
-Changes for patch v201
-
-- Fixed bug in <devfsd_read>: was dereferencing freed pointer
-===============================================================================
-Changes for patch v202
-
-- Fixed bug in <devfsd_close>: was dereferencing freed pointer
-
-- Added process group check for devfsd privileges
-===============================================================================
-Changes for patch v203
-
-- Use SLAB_ATOMIC in <devfsd_notify_de> from <devfs_d_delete>
-===============================================================================
-Changes for patch v204
-
-- Removed long obsolete rc.devfs
-
-- Return old entry in <devfs_mk_dir> for 2.4.x kernels
-
-- Updated README from master HTML file
-
-- Increment refcount on module in <check_disc_changed>
-
-- Created <devfs_get_handle> and exported <devfs_put>
-
-- Increment refcount on module in <devfs_get_ops>
-
-- Created <devfs_put_ops> and used where needed to fix races
-
-- Added clarifying comments in response to preliminary EMC code review
-
-- Added poisoning to <devfs_put>
-
-- Improved debugging messages
-
-- Fixed unregister bugs in drivers/md/lvm-fs.c
-===============================================================================
-Changes for patch v205
-
-- Corrected (made useful) debugging message in <unregister>
-
-- Moved <kmem_cache_create> in <mount_devfs_fs> to <init_devfs_fs>
-
-- Fixed drivers/md/lvm-fs.c to create "lvm" entry
-
-- Added magic number to guard against scribbling drivers
-
-- Only return old entry in <devfs_mk_dir> if a directory
-
-- Defined macros for error and debug messages
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v206
-
-- Added support for multiple Compaq cpqarray controllers
-
-- Fixed (rare, old) race in <devfs_lookup>
-===============================================================================
-Changes for patch v207
-
-- Fixed deadlock bug in <devfs_d_revalidate_wait>
-
-- Tag VFS deletable in <devfs_mk_symlink> if handle ignored
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v208
-
-- Added KERN_* to remaining messages
-
-- Cleaned up declaration of <stat_read>
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v209
-
-- Updated README from master HTML file
-
-- Removed silently introduced calls to lock_kernel() and
- unlock_kernel() due to recent VFS locking changes. BKL isn't
- required in devfs
-
-- Changed <devfs_rmdir> to allow later additions if not yet empty
-
-- Added calls to <devfs_register_partitions> in drivers/block/blkpc.c
- <add_partition> and <del_partition>
-
-- Fixed bug in <devfs_alloc_unique_number>: was clearing beyond
- bitfield
-
-- Fixed bitfield data type for <devfs_*alloc_devnum>
-
-- Made major bitfield type and initialiser 64 bit safe
-===============================================================================
-Changes for patch v210
-
-- Updated fs/devfs/util.c to fix shift warning on 64 bit machines
- Thanks to Anton Blanchard <anton@samba.org>
-
-- Updated README from master HTML file
-===============================================================================
-Changes for patch v211
-
-- Do not put miscellaneous character devices in /dev/misc if they
- specify their own directory (i.e. contain a '/' character)
-
-- Copied macro for error messages from fs/devfs/base.c to
- fs/devfs/util.c and made use of this macro
-
-- Removed 2.4.x compatibility code from fs/devfs/base.c
-===============================================================================
-Changes for patch v212
-
-- Added BKL to <devfs_open> because drivers still need it
-===============================================================================
-Changes for patch v213
-
-- Protected <scan_dir_for_removable> and <get_removable_partition>
- from changing directory contents
-===============================================================================
-Changes for patch v214
-
-- Switched to ISO C structure field initialisers
-
-- Switch to set_current_state() and move before add_wait_queue()
-
-- Updated README from master HTML file
-
-- Fixed devfs entry leak in <devfs_readdir> when *readdir fails
-===============================================================================
-Changes for patch v215
-
-- Created <devfs_find_and_unregister>
-
-- Switched many functions from <devfs_find_handle> to
- <devfs_find_and_unregister>
-
-- Switched many functions from <devfs_find_handle> to <devfs_get_handle>
-===============================================================================
-Changes for patch v216
-
-- Switched arch/ia64/sn/io/hcl.c from <devfs_find_handle> to
- <devfs_get_handle>
-
-- Removed deprecated <devfs_find_handle>
-===============================================================================
-Changes for patch v217
-
-- Exported <devfs_find_and_unregister> and <devfs_only> to modules
-
-- Updated README from master HTML file
-
-- Fixed module unload race in <devfs_open>
-===============================================================================
-Changes for patch v218
-
-- Removed DEVFS_FL_AUTO_OWNER flag
-
-- Switched lingering structure field initialiser to ISO C
-
-- Added locking when setting/clearing flags
-
-- Documentation fix in fs/devfs/util.c
diff --git a/Documentation/filesystems/devfs/README b/Documentation/filesystems/devfs/README
deleted file mode 100644
index aabfba2..0000000
--- a/Documentation/filesystems/devfs/README
+++ /dev/null
@@ -1,1959 +0,0 @@
-Devfs (Device File System) FAQ
-
-
-Linux Devfs (Device File System) FAQ
-Richard Gooch
-20-AUG-2002
-
-
-Document languages:
-
-
-
-
-
-
-
------------------------------------------------------------------------------
-
-NOTE: the master copy of this document is available online at:
-
-http://www.atnf.csiro.au/~rgooch/linux/docs/devfs.html
-and looks much better than the text version distributed with the
-kernel sources. A mirror site is available at:
-
-http://www.ras.ucalgary.ca/~rgooch/linux/docs/devfs.html
-
-There is also an optional daemon that may be used with devfs. You can
-find out more about it at:
-
-http://www.atnf.csiro.au/~rgooch/linux/
-
-A mailing list is available which you may subscribe to. Send
-email
-to majordomo@oss.sgi.com with the following line in the
-body of the message:
-subscribe devfs
-To unsubscribe, send the message body:
-unsubscribe devfs
-instead. The list is archived at
-
-http://oss.sgi.com/projects/devfs/archive/.
-
------------------------------------------------------------------------------
-
-Contents
-
-
-What is it?
-
-Why do it?
-
-Who else does it?
-
-How it works
-
-Operational issues (essential reading)
-
-Instructions for the impatient
-Permissions persistence across reboots
-Dealing with drivers without devfs support
-All the way with Devfs
-Other Issues
-Kernel Naming Scheme
-Devfsd Naming Scheme
-Old Compatibility Names
-SCSI Host Probing Issues
-
-
-
-Device drivers currently ported
-
-Allocation of Device Numbers
-
-Questions and Answers
-
-Making things work
-Alternatives to devfs
-What I don't like about devfs
-How to report bugs
-Strange kernel messages
-Compilation problems with devfsd
-
-
-Other resources
-
-Translations of this document
-
-
------------------------------------------------------------------------------
-
-
-What is it?
-
-Devfs is an alternative to "real" character and block special devices
-on your root filesystem. Kernel device drivers can register devices by
-name rather than major and minor numbers. These devices will appear in
-devfs automatically, with whatever default ownership and
-protection the driver specified. A daemon (devfsd) can be used to
-override these defaults. Devfs has been in the kernel since 2.3.46.
-
-NOTE that devfs is entirely optional. If you prefer the old
-disc-based device nodes, then simply leave CONFIG_DEVFS_FS=n (the
-default). In this case, nothing will change. ALSO NOTE that if you do
-enable devfs, the defaults are such that full compatibility is
-maintained with the old devices names.
-
-There are two aspects to devfs: one is the underlying device
-namespace, which is a namespace just like any mounted filesystem. The
-other aspect is the filesystem code which provides a view of the
-device namespace. The reason I make a distinction is because devfs
-can be mounted many times, with each mount showing the same device
-namespace. Changes made are global to all mounted devfs filesystems.
-Also, because the devfs namespace exists without any devfs mounts, you
-can easily mount the root filesystem by referring to an entry in the
-devfs namespace.
-
-
-The cost of devfs is a small increase in kernel code size and memory
-usage. About 7 pages of code (some of that in __init sections) and 72
-bytes for each entry in the namespace. A modest system has only a
-couple of hundred device entries, so this costs a few more
-pages. Compare this with the suggestion to put /dev on a <a
-href="#why-faq-ramdisc">ramdisc.
-
-On a typical machine, the cost is under 0.2 percent. On a modest
-system with 64 MBytes of RAM, the cost is under 0.1 percent. The
-accusations of "bloatware" levelled at devfs are not justified.
-
------------------------------------------------------------------------------
-
-
-Why do it?
-
-There are several problems that devfs addresses. Some of these
-problems are more serious than others (depending on your point of
-view), and some can be solved without devfs. However, the totality of
-these problems really calls out for devfs.
-
-The choice is a patchwork of inefficient user space solutions, which
-are complex and likely to be fragile, or to use a simple and efficient
-devfs which is robust.
-
-There have been many counter-proposals to devfs, all seeking to
-provide some of the benefits without actually implementing devfs. So
-far there has been an absence of code and no proposed alternative has
-been able to provide all the features that devfs does. Further,
-alternative proposals require far more complexity in user-space (and
-still deliver less functionality than devfs). Some people have the
-mantra of reducing "kernel bloat", but don't consider the effects on
-user-space.
-
-A good solution limits the total complexity of kernel-space and
-user-space.
-
-
-Major&minor allocation
-
-The existing scheme requires the allocation of major and minor device
-numbers for each and every device. This means that a central
-co-ordinating authority is required to issue these device numbers
-(unless you're developing a "private" device driver), in order to
-preserve uniqueness. Devfs shifts the burden to a namespace. This may
-not seem like a huge benefit, but actually it is. Since driver authors
-will naturally choose a device name which reflects the functionality
-of the device, there is far less potential for namespace conflict.
-Solving this requires a kernel change.
-
-/dev management
-
-Because you currently access devices through device nodes, these must
-be created by the system administrator. For standard devices you can
-usually find a MAKEDEV programme which creates all these (hundreds!)
-of nodes. This means that changes in the kernel must be reflected by
-changes in the MAKEDEV programme, or else the system administrator
-creates device nodes by hand.
-
-The basic problem is that there are two separate databases of
-major and minor numbers. One is in the kernel and one is in /dev (or
-in a MAKEDEV programme, if you want to look at it that way). This is
-duplication of information, which is not good practice.
-Solving this requires a kernel change.
-
-/dev growth
-
-A typical /dev has over 1200 nodes! Most of these devices simply don't
-exist because the hardware is not available. A huge /dev increases the
-time to access devices (I'm just referring to the dentry lookup times
-and the time taken to read inodes off disc: the next subsection shows
-some more horrors).
-
-An example of how big /dev can grow is if we consider SCSI devices:
-
-host 6 bits (say up to 64 hosts on a really big machine)
-channel 4 bits (say up to 16 SCSI buses per host)
-id 4 bits
-lun 3 bits
-partition 6 bits
-TOTAL 23 bits
-
-
-This requires 8 Mega (1024*1024) inodes if we want to store all
-possible device nodes. Even if we scrap everything but id,partition
-and assume a single host adapter with a single SCSI bus and only one
-logical unit per SCSI target (id), that's still 10 bits or 1024
-inodes. Each VFS inode takes around 256 bytes (kernel 2.1.78), so
-that's 256 kBytes of inode storage on disc (assuming real inodes take
-a similar amount of space as VFS inodes). This is actually not so bad,
-because disc is cheap these days. Embedded systems would care about
-256 kBytes of /dev inodes, but you could argue that embedded systems
-would have hand-tuned /dev directories. I've had to do just that on my
-embedded systems, but I would rather just leave it to devfs.
-
-Another issue is the time taken to lookup an inode when first
-referenced. Not only does this take time in scanning through a list in
-memory, but also the seek times to read the inodes off disc.
-This could be solved in user-space using a clever programme which
-scanned the kernel logs and deleted /dev entries which are not
-available and created them when they were available. This programme
-would need to be run every time a new module was loaded, which would
-slow things down a lot.
-
-There is an existing programme called scsidev which will automatically
-create device nodes for SCSI devices. It can do this by scanning files
-in /proc/scsi. Unfortunately, to extend this idea to other device
-nodes would require significant modifications to existing drivers (so
-they too would provide information in /proc). This is a non-trivial
-change (I should know: devfs has had to do something similar). Once
-you go to this much effort, you may as well use devfs itself (which
-also provides this information). Furthermore, such a system would
-likely be implemented in an ad-hoc fashion, as different drivers will
-provide their information in different ways.
-
-Devfs is much cleaner, because it (naturally) has a uniform mechanism
-to provide this information: the device nodes themselves!
-
-
-Node to driver file_operations translation
-
-There is an important difference between the way disc-based character
-and block nodes and devfs entries make the connection between an entry
-in /dev and the actual device driver.
-
-With the current 8 bit major and minor numbers the connection between
-disc-based c&b nodes and per-major drivers is done through a
-fixed-length table of 128 entries. The various filesystem types set
-the inode operations for c&b nodes to {chr,blk}dev_inode_operations,
-so when a device is opened a few quick levels of indirection bring us
-to the driver file_operations.
-
-For miscellaneous character devices a second step is required: there
-is a scan for the driver entry with the same minor number as the file
-that was opened, and the appropriate minor open method is called. This
-scanning is done *every time* you open a device node. Potentially, you
-may be searching through dozens of misc. entries before you find your
-open method. While not an enormous performance overhead, this does
-seem pointless.
-
-Linux *must* move beyond the 8 bit major and minor barrier,
-somehow. If we simply increase each to 16 bits, then the indexing
-scheme used for major driver lookup becomes untenable, because the
-major tables (one each for character and block devices) would need to
-be 64 k entries long (512 kBytes on x86, 1 MByte for 64 bit
-systems). So we would have to use a scheme like that used for
-miscellaneous character devices, which means the search time goes up
-linearly with the average number of major device drivers on your
-system. Not all "devices" are hardware, some are higher-level drivers
-like KGI, so you can get more "devices" without adding hardware
-You can improve this by creating an ordered (balanced:-)
-binary tree, in which case your search time becomes log(N).
-Alternatively, you can use hashing to speed up the search.
-But why do that search at all if you don't have to? Once again, it
-seems pointless.
-
-Note that devfs doesn't use the major&minor system. For devfs
-entries, the connection is done when you lookup the /dev entry. When
-devfs_register() is called, an internal table is appended which has
-the entry name and the file_operations. If the dentry cache doesn't
-have the /dev entry already, this internal table is scanned to get the
-file_operations, and an inode is created. If the dentry cache already
-has the entry, there is *no lookup time* (other than the dentry scan
-itself, but we can't avoid that anyway, and besides Linux dentries
-cream other OS's which don't have them:-). Furthermore, the number of
-node entries in a devfs is only the number of available device
-entries, not the number of *conceivable* entries. Even if you remove
-unnecessary entries in a disc-based /dev, the number of conceivable
-entries remains the same: you just limit yourself in order to save
-space.
-
-Devfs provides a fast connection between a VFS node and the device
-driver, in a scalable way.
-
-/dev as a system administration tool
-
-Right now /dev contains a list of conceivable devices, most of which I
-don't have. Devfs only shows those devices available on my
-system. This means that listing /dev is a handy way of checking what
-devices are available.
-
-Major&minor size
-
-Existing major and minor numbers are limited to 8 bits each. This is
-now a limiting factor for some drivers, particularly the SCSI disc
-driver, which consumes a single major number. Only 16 discs are
-supported, and each disc may have only 15 partitions. Maybe this isn't
-a problem for you, but some of us are building huge Linux systems with
-disc arrays. With devfs an arbitrary pointer can be associated with
-each device entry, which can be used to give an effective 32 bit
-device identifier (i.e. that's like having a 32 bit minor
-number). Since this is private to the kernel, there are no C library
-compatibility issues which you would have with increasing major and
-minor number sizes. See the section on "Allocation of Device Numbers"
-for details on maintaining compatibility with userspace.
-
-Solving this requires a kernel change.
-
-Since writing this, the kernel has been modified so that the SCSI disc
-driver has more major numbers allocated to it and now supports up to
-128 discs. Since these major numbers are non-contiguous (a result of
-unplanned expansion), the implementation is a little more cumbersome
-than originally.
-
-Just like the changes to IPv4 to fix impending limitations in the
-address space, people find ways around the limitations. In the long
-run, however, solutions like IPv6 or devfs can't be put off forever.
-
-Read-only root filesystem
-
-Having your device nodes on the root filesystem means that you can't
-operate properly with a read-only root filesystem. This is because you
-want to change ownerships and protections of tty devices. Existing
-practice prevents you using a CD-ROM as your root filesystem for a
-*real* system. Sure, you can boot off a CD-ROM, but you can't change
-tty ownerships, so it's only good for installing.
-
-Also, you can't use a shared NFS root filesystem for a cluster of
-discless Linux machines (having tty ownerships changed on a common
-/dev is not good). Nor can you embed your root filesystem in a
-ROM-FS.
-
-You can get around this by creating a RAMDISC at boot time, making
-an ext2 filesystem in it, mounting it somewhere and copying the
-contents of /dev into it, then unmounting it and mounting it over
-/dev.
-
-A devfs is a cleaner way of solving this.
-
-Non-Unix root filesystem
-
-Non-Unix filesystems (such as NTFS) can't be used for a root
-filesystem because they variously don't support character and block
-special files or symbolic links. You can't have a separate disc-based
-or RAMDISC-based filesystem mounted on /dev because you need device
-nodes before you can mount these. Devfs can be mounted without any
-device nodes. Devlinks won't work because symlinks aren't supported.
-An alternative solution is to use initrd to mount a RAMDISC initial
-root filesystem (which is populated with a minimal set of device
-nodes), and then construct a new /dev in another RAMDISC, and finally
-switch to your non-Unix root filesystem. This requires clever boot
-scripts and a fragile and conceptually complex boot procedure.
-
-Devfs solves this in a robust and conceptually simple way.
-
-PTY security
-
-Current pseudo-tty (pty) devices are owned by root and read-writable
-by everyone. The user of a pty-pair cannot change
-ownership/protections without being suid-root.
-
-This could be solved with a secure user-space daemon which runs as
-root and does the actual creation of pty-pairs. Such a daemon would
-require modification to *every* programme that wants to use this new
-mechanism. It also slows down creation of pty-pairs.
-
-An alternative is to create a new open_pty() syscall which does much
-the same thing as the user-space daemon. Once again, this requires
-modifications to pty-handling programmes.
-
-The devfs solution allows a device driver to "tag" certain device
-files so that when an unopened device is opened, the ownerships are
-changed to the current euid and egid of the opening process, and the
-protections are changed to the default registered by the driver. When
-the device is closed ownership is set back to root and protections are
-set back to read-write for everybody. No programme need be changed.
-The devpts filesystem provides this auto-ownership feature for Unix98
-ptys. It doesn't support old-style pty devices, nor does it have all
-the other features of devfs.
-
-Intelligent device management
-
-Devfs implements a simple yet powerful protocol for communication with
-a device management daemon (devfsd) which runs in user space. It is
-possible to send a message (either synchronously or asynchronously) to
-devfsd on any event, such as registration/unregistration of device
-entries, opening and closing devices, looking up inodes, scanning
-directories and more. This has many possibilities. Some of these are
-already implemented. See:
-
-
-http://www.atnf.csiro.au/~rgooch/linux/
-
-Device entry registration events can be used by devfsd to change
-permissions of newly-created device nodes. This is one mechanism to
-control device permissions.
-
-Device entry registration/unregistration events can be used to run
-programmes or scripts. This can be used to provide automatic mounting
-of filesystems when a new block device media is inserted into the
-drive.
-
-Asynchronous device open and close events can be used to implement
-clever permissions management. For example, the default permissions on
-/dev/dsp do not allow everybody to read from the device. This is
-sensible, as you don't want some remote user recording what you say at
-your console. However, the console user is also prevented from
-recording. This behaviour is not desirable. With asynchronous device
-open and close events, you can have devfsd run a programme or script
-when console devices are opened to change the ownerships for *other*
-device nodes (such as /dev/dsp). On closure, you can run a different
-script to restore permissions. An advantage of this scheme over
-modifying the C library tty handling is that this works even if your
-programme crashes (how many times have you seen the utmp database with
-lingering entries for non-existent logins?).
-
-Synchronous device open events can be used to perform intelligent
-device access protections. Before the device driver open() method is
-called, the daemon must first validate the open attempt, by running an
-external programme or script. This is far more flexible than access
-control lists, as access can be determined on the basis of other
-system conditions instead of just the UID and GID.
-
-Inode lookup events can be used to authenticate module autoload
-requests. Instead of using kmod directly, the event is sent to
-devfsd which can implement an arbitrary authentication before loading
-the module itself.
-
-Inode lookup events can also be used to construct arbitrary
-namespaces, without having to resort to populating devfs with symlinks
-to devices that don't exist.
-
-Speculative Device Scanning
-
-Consider an application (like cdparanoia) that wants to find all
-CD-ROM devices on the system (SCSI, IDE and other types), whether or
-not their respective modules are loaded. The application must
-speculatively open certain device nodes (such as /dev/sr0 for the SCSI
-CD-ROMs) in order to make sure the module is loaded. This requires
-that all Linux distributions follow the standard device naming scheme
-(last time I looked RedHat did things differently). Devfs solves the
-naming problem.
-
-The same application also wants to see which devices are actually
-available on the system. With the existing system it needs to read the
-/dev directory and speculatively open each /dev/sr* device to
-determine if the device exists or not. With a large /dev this is an
-inefficient operation, especially if there are many /dev/sr* nodes. A
-solution like scsidev could reduce the number of /dev/sr* entries (but
-of course that also requires all that inefficient directory scanning).
-
-With devfs, the application can open the /dev/sr directory
-(which triggers the module autoloading if required), and proceed to
-read /dev/sr. Since only the available devices will have
-entries, there are no inefficencies in directory scanning or device
-openings.
-
------------------------------------------------------------------------------
-
-Who else does it?
-
-FreeBSD has a devfs implementation. Solaris and AIX each have a
-pseudo-devfs (something akin to scsidev but for all devices, with some
-unspecified kernel support). BeOS, Plan9 and QNX also have it. SGI's
-IRIX 6.4 and above also have a device filesystem.
-
-While we shouldn't just automatically do something because others do
-it, we should not ignore the work of others either. FreeBSD has a lot
-of competent people working on it, so their opinion should not be
-blithely ignored.
-
------------------------------------------------------------------------------
-
-
-How it works
-
-Registering device entries
-
-For every entry (device node) in a devfs-based /dev a driver must call
-devfs_register(). This adds the name of the device entry, the
-file_operations structure pointer and a few other things to an
-internal table. Device entries may be added and removed at any
-time. When a device entry is registered, it automagically appears in
-any mounted devfs'.
-
-Inode lookup
-
-When a lookup operation on an entry is performed and if there is no
-driver information for that entry devfs will attempt to call
-devfsd. If still no driver information can be found then a negative
-dentry is yielded and the next stage operation will be called by the
-VFS (such as create() or mknod() inode methods). If driver information
-can be found, an inode is created (if one does not exist already) and
-all is well.
-
-Manually creating device nodes
-
-The mknod() method allows you to create an ordinary named pipe in the
-devfs, or you can create a character or block special inode if one
-does not already exist. You may wish to create a character or block
-special inode so that you can set permissions and ownership. Later, if
-a device driver registers an entry with the same name, the
-permissions, ownership and times are retained. This is how you can set
-the protections on a device even before the driver is loaded. Once you
-create an inode it appears in the directory listing.
-
-Unregistering device entries
-
-A device driver calls devfs_unregister() to unregister an entry.
-
-Chroot() gaols
-
-2.2.x kernels
-
-The semantics of inode creation are different when devfs is mounted
-with the "explicit" option. Now, when a device entry is registered, it
-will not appear until you use mknod() to create the device. It doesn't
-matter if you mknod() before or after the device is registered with
-devfs_register(). The purpose of this behaviour is to support
-chroot(2) gaols, where you want to mount a minimal devfs inside the
-gaol. Only the devices you specifically want to be available (through
-your mknod() setup) will be accessible.
-
-2.4.x kernels
-
-As of kernel 2.3.99, the VFS has had the ability to rebind parts of
-the global filesystem namespace into another part of the namespace.
-This now works even at the leaf-node level, which means that
-individual files and device nodes may be bound into other parts of the
-namespace. This is like making links, but better, because it works
-across filesystems (unlike hard links) and works through chroot()
-gaols (unlike symbolic links).
-
-Because of these improvements to the VFS, the multi-mount capability
-in devfs is no longer needed. The administrator may create a minimal
-device tree inside a chroot(2) gaol by using VFS bindings. As this
-provides most of the features of the devfs multi-mount capability, I
-removed the multi-mount support code (after issuing an RFC). This
-yielded code size reductions and simplifications.
-
-If you want to construct a minimal chroot() gaol, the following
-command should suffice:
-
-mount --bind /dev/null /gaol/dev/null
-
-
-Repeat for other device nodes you want to expose. Simple!
-
------------------------------------------------------------------------------
-
-
-Operational issues
-
-
-Instructions for the impatient
-
-Nobody likes reading documentation. People just want to get in there
-and play. So this section tells you quickly the steps you need to take
-to run with devfs mounted over /dev. Skip these steps and you will end
-up with a nearly unbootable system. Subsequent sections describe the
-issues in more detail, and discuss non-essential configuration
-options.
-
-Devfsd
-OK, if you're reading this, I assume you want to play with
-devfs. First you should ensure that /usr/src/linux contains a
-recent kernel source tree. Then you need to compile devfsd, the device
-management daemon, available at
-
-http://www.atnf.csiro.au/~rgooch/linux/.
-Because the kernel has a naming scheme
-which is quite different from the old naming scheme, you need to
-install devfsd so that software and configuration files that use the
-old naming scheme will not break.
-
-Compile and install devfsd. You will be provided with a default
-configuration file /etc/devfsd.conf which will provide
-compatibility symlinks for the old naming scheme. Don't change this
-config file unless you know what you're doing. Even if you think you
-do know what you're doing, don't change it until you've followed all
-the steps below and booted a devfs-enabled system and verified that it
-works.
-
-Now edit your main system boot script so that devfsd is started at the
-very beginning (before any filesystem
-checks). /etc/rc.d/rc.sysinit is often the main boot script
-on systems with SysV-style boot scripts. On systems with BSD-style
-boot scripts it is often /etc/rc. Also check
-/sbin/rc.
-
-NOTE that the line you put into the boot
-script should be exactly:
-
-/sbin/devfsd /dev
-
-DO NOT use some special daemon-launching
-programme, otherwise the boot script may not wait for devfsd to finish
-initialising.
-
-System Libraries
-There may still be some problems because of broken software making
-assumptions about device names. In particular, some software does not
-handle devices which are symbolic links. If you are running a libc 5
-based system, install libc 5.4.44 (if you have libc 5.4.46, go back to
-libc 5.4.44, which is actually correct). If you are running a glibc
-based system, make sure you have glibc 2.1.3 or later.
-
-/etc/securetty
-PAM (Pluggable Authentication Modules) is supposed to be a flexible
-mechanism for providing better user authentication and access to
-services. Unfortunately, it's also fragile, complex and undocumented
-(check out RedHat 6.1, and probably other distributions as well). PAM
-has problems with symbolic links. Append the following lines to your
-/etc/securetty file:
-
-vc/1
-vc/2
-vc/3
-vc/4
-vc/5
-vc/6
-vc/7
-vc/8
-
-This will not weaken security. If you have a version of util-linux
-earlier than 2.10.h, please upgrade to 2.10.h or later. If you
-absolutely cannot upgrade, then also append the following lines to
-your /etc/securetty file:
-
-1
-2
-3
-4
-5
-6
-7
-8
-
-This may potentially weaken security by allowing root logins over the
-network (a password is still required, though). However, since there
-are problems with dealing with symlinks, I'm suspicious of the level
-of security offered in any case.
-
-XFree86
-While not essential, it's probably a good idea to upgrade to XFree86
-4.0, as patches went in to make it more devfs-friendly. If you don't,
-you'll probably need to apply the following patch to
-/etc/security/console.perms so that ordinary users can run
-startx. Note that not all distributions have this file (e.g. Debian),
-so if it's not present, don't worry about it.
-
---- /etc/security/console.perms.orig Sat Apr 17 16:26:47 1999
-+++ /etc/security/console.perms Fri Feb 25 23:53:55 2000
-@@ -14,7 +14,7 @@
- # man 5 console.perms
-
- # file classes -- these are regular expressions
--<console>=tty[0-9][0-9]* :[0-9]\.[0-9] :[0-9]
-+<console>=tty[0-9][0-9]* vc/[0-9][0-9]* :[0-9]\.[0-9] :[0-9]
-
- # device classes -- these are shell-style globs
- <floppy>=/dev/fd[0-1]*
-
-If the patch does not apply, then change the line:
-
-<console>=tty[0-9][0-9]* :[0-9]\.[0-9] :[0-9]
-
-with:
-
-<console>=tty[0-9][0-9]* vc/[0-9][0-9]* :[0-9]\.[0-9] :[0-9]
-
-
-Disable devpts
-I've had a report of devpts mounted on /dev/pts not working
-correctly. Since devfs will also manage /dev/pts, there is no
-need to mount devpts as well. You should either edit your
-/etc/fstab so devpts is not mounted, or disable devpts from
-your kernel configuration.
-
-Unsupported drivers
-Not all drivers have devfs support. If you depend on one of these
-drivers, you will need to create a script or tarfile that you can use
-at boot time to create device nodes as appropriate. There is a
-section which describes this. Another
-section lists the drivers which have
-devfs support.
-
-/dev/mouse
-
-Many disributions configure /dev/mouse to be the mouse device
-for XFree86 and GPM. I actually think this is a bad idea, because it
-adds another level of indirection. When looking at a config file, if
-you see /dev/mouse you're left wondering which mouse
-is being referred to. Hence I recommend putting the actual mouse
-device (for example /dev/psaux) into your
-/etc/X11/XF86Config file (and similarly for the GPM
-configuration file).
-
-Alternatively, use the same technique used for unsupported drivers
-described above.
-
-The Kernel
-Finally, you need to make sure devfs is compiled into your kernel. Set
-CONFIG_EXPERIMENTAL=y, CONFIG_DEVFS_FS=y and CONFIG_DEVFS_MOUNT=y by
-using favourite configuration tool (i.e. make config or
-make xconfig) and then make clean and then recompile your kernel and
-modules. At boot, devfs will be mounted onto /dev.
-
-If you encounter problems booting (for example if you forgot a
-configuration step), you can pass devfs=nomount at the kernel
-boot command line. This will prevent the kernel from mounting devfs at
-boot time onto /dev.
-
-In general, a kernel built with CONFIG_DEVFS_FS=y but without mounting
-devfs onto /dev is completely safe, and requires no
-configuration changes. One exception to take note of is when
-LABEL= directives are used in /etc/fstab. In this
-case you will be unable to boot properly. This is because the
-mount(8) programme uses /proc/partitions as part of
-the volume label search process, and the device names it finds are not
-available, because setting CONFIG_DEVFS_FS=y changes the names in
-/proc/partitions, irrespective of whether devfs is mounted.
-
-Now you've finished all the steps required. You're now ready to boot
-your shiny new kernel. Enjoy.
-
-Changing the configuration
-
-OK, you've now booted a devfs-enabled system, and everything works.
-Now you may feel like changing the configuration (common targets are
-/etc/fstab and /etc/devfsd.conf). Since you have a
-system that works, if you make any changes and it doesn't work, you
-now know that you only have to restore your configuration files to the
-default and it will work again.
-
-
-Permissions persistence across reboots
-
-If you don't use mknod(2) to create a device file, nor use chmod(2) or
-chown(2) to change the ownerships/permissions, the inode ctime will
-remain at 0 (the epoch, 12 am, 1-JAN-1970, GMT). Anything with a ctime
-later than this has had it's ownership/permissions changed. Hence, a
-simple script or programme may be used to tar up all changed inodes,
-prior to shutdown. Although effective, many consider this approach a
-kludge.
-
-A much better approach is to use devfsd to save and restore
-permissions. It may be configured to record changes in permissions and
-will save them in a database (in fact a directory tree), and restore
-these upon boot. This is an efficient method and results in immediate
-saving of current permissions (unlike the tar approach, which saves
-permissions at some unspecified future time).
-
-The default configuration file supplied with devfsd has config entries
-which you may uncomment to enable persistence management.
-
-If you decide to use the tar approach anyway, be aware that tar will
-first unlink(2) an inode before creating a new device node. The
-unlink(2) has the effect of breaking the connection between a devfs
-entry and the device driver. If you use the "devfs=only" boot option,
-you lose access to the device driver, requiring you to reload the
-module. I consider this a bug in tar (there is no real need to
-unlink(2) the inode first).
-
-Alternatively, you can use devfsd to provide more sophisticated
-management of device permissions. You can use devfsd to store
-permissions for whole groups of devices with a single configuration
-entry, rather than the conventional single entry per device entry.
-
-Permissions database stored in mounted-over /dev
-
-If you wish to save and restore your device permissions into the
-disc-based /dev while still mounting devfs onto /dev
-you may do so. This requires a 2.4.x kernel (in fact, 2.3.99 or
-later), which has the VFS binding facility. You need to do the
-following to set this up:
-
-
-
-make sure the kernel does not mount devfs at boot time
-
-
-make sure you have a correct /dev/console entry in your
-root file-system (where your disc-based /dev lives)
-
-create the /dev-state directory
-
-
-add the following lines near the very beginning of your boot
-scripts:
-
-mount --bind /dev /dev-state
-mount -t devfs none /dev
-devfsd /dev
-
-
-
-
-add the following lines to your /etc/devfsd.conf file:
-
-REGISTER ^pt[sy] IGNORE
-CREATE ^pt[sy] IGNORE
-CHANGE ^pt[sy] IGNORE
-DELETE ^pt[sy] IGNORE
-REGISTER .* COPY /dev-state/$devname $devpath
-CREATE .* COPY $devpath /dev-state/$devname
-CHANGE .* COPY $devpath /dev-state/$devname
-DELETE .* CFUNCTION GLOBAL unlink /dev-state/$devname
-RESTORE /dev-state
-
-Note that the sample devfsd.conf file contains these lines,
-as well as other sample configurations you may find useful. See the
-devfsd distribution
-
-
-reboot.
-
-
-
-
-Permissions database stored in normal directory
-
-If you are using an older kernel which doesn't support VFS binding,
-then you won't be able to have the permissions database in a
-mounted-over /dev. However, you can still use a regular
-directory to store the database. The sample /etc/devfsd.conf
-file above may still be used. You will need to create the
-/dev-state directory prior to installing devfsd. If you have
-old permissions in /dev, then just copy (or move) the device
-nodes over to the new directory.
-
-Which method is better?
-
-The best method is to have the permissions database stored in the
-mounted-over /dev. This is because you will not need to copy
-device nodes over to /dev-state, and because it allows you to
-switch between devfs and non-devfs kernels, without requiring you to
-copy permissions between /dev-state (for devfs) and
-/dev (for non-devfs).
-
-
-Dealing with drivers without devfs support
-
-Currently, not all device drivers in the kernel have been modified to
-use devfs. Device drivers which do not yet have devfs support will not
-automagically appear in devfs. The simplest way to create device nodes
-for these drivers is to unpack a tarfile containing the required
-device nodes. You can do this in your boot scripts. All your drivers
-will now work as before.
-
-Hopefully for most people devfs will have enough support so that they
-can mount devfs directly over /dev without losing most functionality
-(i.e. losing access to various devices). As of 22-JAN-1998 (devfs
-patch version 10) I am now running this way. All the devices I have
-are available in devfs, so I don't lose anything.
-
-WARNING: if your configuration requires the old-style device names
-(i.e. /dev/hda1 or /dev/sda1), you must install devfsd and configure
-it to maintain compatibility entries. It is almost certain that you
-will require this. Note that the kernel creates a compatibility entry
-for the root device, so you don't need initrd.
-
-Note that you no longer need to mount devpts if you use Unix98 PTYs,
-as devfs can manage /dev/pts itself. This saves you some RAM, as you
-don't need to compile and install devpts. Note that some versions of
-glibc have a bug with Unix98 pty handling on devfs systems. Contact
-the glibc maintainers for a fix. Glibc 2.1.3 has the fix.
-
-Note also that apart from editing /etc/fstab, other things will need
-to be changed if you *don't* install devfsd. Some software (like the X
-server) hard-wire device names in their source. It really is much
-easier to install devfsd so that compatibility entries are created.
-You can then slowly migrate your system to using the new device names
-(for example, by starting with /etc/fstab), and then limiting the
-compatibility entries that devfsd creates.
-
-IF YOU CONFIGURE TO MOUNT DEVFS AT BOOT, MAKE SURE YOU INSTALL DEVFSD
-BEFORE YOU BOOT A DEVFS-ENABLED KERNEL!
-
-Now that devfs has gone into the 2.3.46 kernel, I'm getting a lot of
-reports back. Many of these are because people are trying to run
-without devfsd, and hence some things break. Please just run devfsd if
-things break. I want to concentrate on real bugs rather than
-misconfiguration problems at the moment. If people are willing to fix
-bugs/false assumptions in other code (i.e. glibc, X server) and submit
-that to the respective maintainers, that would be great.
-
-
-All the way with Devfs
-
-The devfs kernel patch creates a rationalised device tree. As stated
-above, if you want to keep using the old /dev naming scheme,
-you just need to configure devfsd appopriately (see the man
-page). People who prefer the old names can ignore this section. For
-those of us who like the rationalised names and an uncluttered
-/dev, read on.
-
-If you don't run devfsd, or don't enable compatibility entry
-management, then you will have to configure your system to use the new
-names. For example, you will then need to edit your
-/etc/fstab to use the new disc naming scheme. If you want to
-be able to boot non-devfs kernels, you will need compatibility
-symlinks in the underlying disc-based /dev pointing back to
-the old-style names for when you boot a kernel without devfs.
-
-You can selectively decide which devices you want compatibility
-entries for. For example, you may only want compatibility entries for
-BSD pseudo-terminal devices (otherwise you'll have to patch you C
-library or use Unix98 ptys instead). It's just a matter of putting in
-the correct regular expression into /dev/devfsd.conf.
-
-There are other choices of naming schemes that you may prefer. For
-example, I don't use the kernel-supplied
-names, because they are too verbose. A common misconception is
-that the kernel-supplied names are meant to be used directly in
-configuration files. This is not the case. They are designed to
-reflect the layout of the devices attached and to provide easy
-classification.
-
-If you like the kernel-supplied names, that's fine. If you don't then
-you should be using devfsd to construct a namespace more to your
-liking. Devfsd has built-in code to construct a
-namespace that is both logical and easy to
-manage. In essence, it creates a convenient abbreviation of the
-kernel-supplied namespace.
-
-You are of course free to build your own namespace. Devfsd has all the
-infrastructure required to make this easy for you. All you need do is
-write a script. You can even write some C code and devfsd can load the
-shared object as a callable extension.
-
-
-Other Issues
-
-The init programme
-Another thing to take note of is whether your init programme
-creates a Unix socket /dev/telinit. Some versions of init
-create /dev/telinit so that the telinit programme can
-communicate with the init process. If you have such a system you need
-to make sure that devfs is mounted over /dev *before* init
-starts. In other words, you can't leave the mounting of devfs to
-/etc/rc, since this is executed after init. Other
-versions of init require a named pipe /dev/initctl
-which must exist *before* init starts. Once again, you need to
-mount devfs and then create the named pipe *before* init
-starts.
-
-The default behaviour now is not to mount devfs onto /dev at
-boot time for 2.3.x and later kernels. You can correct this with the
-"devfs=mount" boot option. This solves any problems with init,
-and also prevents the dreaded:
-
-Cannot open initial console
-
-message. For 2.2.x kernels where you need to apply the devfs patch,
-the default is to mount.
-
-If you have automatic mounting of devfs onto /dev then you
-may need to create /dev/initctl in your boot scripts. The
-following lines should suffice:
-
-mknod /dev/initctl p
-kill -SIGUSR1 1 # tell init that /dev/initctl now exists
-
-Alternatively, if you don't want the kernel to mount devfs onto
-/dev then you could use the following procedure is a
-guideline for how to get around /dev/initctl problems:
-
-# cd /sbin
-# mv init init.real
-# cat > init
-#! /bin/sh
-mount -n -t devfs none /dev
-mknod /dev/initctl p
-exec /sbin/init.real $*
-[control-D]
-# chmod a+x init
-
-Note that newer versions of init create /dev/initctl
-automatically, so you don't have to worry about this.
-
-Module autoloading
-You will need to configure devfsd to enable module
-autoloading. The following lines should be placed in your
-/etc/devfsd.conf file:
-
-LOOKUP .* MODLOAD
-
-
-As of devfsd-v1.3.10, a generic /etc/modules.devfs
-configuration file is installed, which is used by the MODLOAD
-action. This should be sufficient for most configurations. If you
-require further configuration, edit your /etc/modules.conf
-file. The way module autoloading work with devfs is:
-
-
-a process attempts to lookup a device node (e.g. /dev/fred)
-
-
-if that device node does not exist, the full pathname is passed to
-devfsd as a string
-
-
-devfsd will pass the string to the modprobe programme (provided the
-configuration line shown above is present), and specifies that
-/etc/modules.devfs is the configuration file
-
-
-/etc/modules.devfs includes /etc/modules.conf to
-access local configurations
-
-modprobe will search it's configuration files, looking for an alias
-that translates the pathname into a module name
-
-
-the translated pathname is then used to load the module.
-
-
-If you wanted a lookup of /dev/fred to load the
-mymod module, you would require the following configuration
-line in /etc/modules.conf:
-
-alias /dev/fred mymod
-
-The /etc/modules.devfs configuration file provides many such
-aliases for standard device names. If you look closely at this file,
-you will note that some modules require multiple alias configuration
-lines. This is required to support module autoloading for old and new
-device names.
-
-Mounting root off a devfs device
-If you wish to mount root off a devfs device when you pass the
-"devfs=only" boot option, then you need to pass in the
-"root=<device>" option to the kernel when booting. If you use
-LILO, then you must have this in lilo.conf:
-
-append = "root=<device>"
-
-Surprised? Yep, so was I. It turns out if you have (as most people
-do):
-
-root = <device>
-
-
-then LILO will determine the device number of <device> and will
-write that device number into a special place in the kernel image
-before starting the kernel, and the kernel will use that device number
-to mount the root filesystem. So, using the "append" variety ensures
-that LILO passes the root filesystem device as a string, which devfs
-can then use.
-
-Note that this isn't an issue if you don't pass "devfs=only".
-
-TTY issues
-The ttyname(3) function in some versions of the C library makes
-false assumptions about device entries which are symbolic links. The
-tty(1) programme is one that depends on this function. I've
-written a patch to libc 5.4.43 which fixes this. This has been
-included in libc 5.4.44 and a similar fix is in glibc 2.1.3.
-
-
-Kernel Naming Scheme
-
-The kernel provides a default naming scheme. This scheme is designed
-to make it easy to search for specific devices or device types, and to
-view the available devices. Some device types (such as hard discs),
-have a directory of entries, making it easy to see what devices of
-that class are available. Often, the entries are symbolic links into a
-directory tree that reflects the topology of available devices. The
-topological tree is useful for finding how your devices are arranged.
-
-Below is a list of the naming schemes for the most common drivers. A
-list of reserved device names is
-available for reference. Please send email to
-rgooch@atnf.csiro.au to obtain an allocation. Please be
-patient (the maintainer is busy). An alternative name may be allocated
-instead of the requested name, at the discretion of the maintainer.
-
-Disc Devices
-
-All discs, whether SCSI, IDE or whatever, are placed under the
-/dev/discs hierarchy:
-
- /dev/discs/disc0 first disc
- /dev/discs/disc1 second disc
-
-
-Each of these entries is a symbolic link to the directory for that
-device. The device directory contains:
-
- disc for the whole disc
- part* for individual partitions
-
-
-CD-ROM Devices
-
-All CD-ROMs, whether SCSI, IDE or whatever, are placed under the
-/dev/cdroms hierarchy:
-
- /dev/cdroms/cdrom0 first CD-ROM
- /dev/cdroms/cdrom1 second CD-ROM
-
-
-Each of these entries is a symbolic link to the real device entry for
-that device.
-
-Tape Devices
-
-All tapes, whether SCSI, IDE or whatever, are placed under the
-/dev/tapes hierarchy:
-
- /dev/tapes/tape0 first tape
- /dev/tapes/tape1 second tape
-
-
-Each of these entries is a symbolic link to the directory for that
-device. The device directory contains:
-
- mt for mode 0
- mtl for mode 1
- mtm for mode 2
- mta for mode 3
- mtn for mode 0, no rewind
- mtln for mode 1, no rewind
- mtmn for mode 2, no rewind
- mtan for mode 3, no rewind
-
-
-SCSI Devices
-
-To uniquely identify any SCSI device requires the following
-information:
-
- controller (host adapter)
- bus (SCSI channel)
- target (SCSI ID)
- unit (Logical Unit Number)
-
-
-All SCSI devices are placed under /dev/scsi (assuming devfs
-is mounted on /dev). Hence, a SCSI device with the following
-parameters: c=1,b=2,t=3,u=4 would appear as:
-
- /dev/scsi/host1/bus2/target3/lun4 device directory
-
-
-Inside this directory, a number of device entries may be created,
-depending on which SCSI device-type drivers were installed.
-
-See the section on the disc naming scheme to see what entries the SCSI
-disc driver creates.
-
-See the section on the tape naming scheme to see what entries the SCSI
-tape driver creates.
-
-The SCSI CD-ROM driver creates:
-
- cd
-
-
-The SCSI generic driver creates:
-
- generic
-
-
-IDE Devices
-
-To uniquely identify any IDE device requires the following
-information:
-
- controller
- bus (aka. primary/secondary)
- target (aka. master/slave)
- unit
-
-
-All IDE devices are placed under /dev/ide, and uses a similar
-naming scheme to the SCSI subsystem.
-
-XT Hard Discs
-
-All XT discs are placed under /dev/xd. The first XT disc has
-the directory /dev/xd/disc0.
-
-TTY devices
-
-The tty devices now appear as:
-
- New name Old-name Device Type
- -------- -------- -----------
- /dev/tts/{0,1,...} /dev/ttyS{0,1,...} Serial ports
- /dev/cua/{0,1,...} /dev/cua{0,1,...} Call out devices
- /dev/vc/0 /dev/tty Current virtual console
- /dev/vc/{1,2,...} /dev/tty{1...63} Virtual consoles
- /dev/vcc/{0,1,...} /dev/vcs{1...63} Virtual consoles
- /dev/pty/m{0,1,...} /dev/ptyp?? PTY masters
- /dev/pty/s{0,1,...} /dev/ttyp?? PTY slaves
-
-
-RAMDISCS
-
-The RAMDISCS are placed in their own directory, and are named thus:
-
- /dev/rd/{0,1,2,...}
-
-
-Meta Devices
-
-The meta devices are placed in their own directory, and are named
-thus:
-
- /dev/md/{0,1,2,...}
-
-
-Floppy discs
-
-Floppy discs are placed in the /dev/floppy directory.
-
-Loop devices
-
-Loop devices are placed in the /dev/loop directory.
-
-Sound devices
-
-Sound devices are placed in the /dev/sound directory
-(audio, sequencer, ...).
-
-
-Devfsd Naming Scheme
-
-Devfsd provides a naming scheme which is a convenient abbreviation of
-the kernel-supplied namespace. In some
-cases, the kernel-supplied naming scheme is quite convenient, so
-devfsd does not provide another naming scheme. The convenience names
-that devfsd creates are in fact the same names as the original devfs
-kernel patch created (before Linus mandated the Big Name
-Change). These are referred to as "new compatibility entries".
-
-In order to configure devfsd to create these convenience names, the
-following lines should be placed in your /etc/devfsd.conf:
-
-REGISTER .* MKNEWCOMPAT
-UNREGISTER .* RMNEWCOMPAT
-
-This will cause devfsd to create (and destroy) symbolic links which
-point to the kernel-supplied names.
-
-SCSI Hard Discs
-
-All SCSI discs are placed under /dev/sd (assuming devfs is
-mounted on /dev). Hence, a SCSI disc with the following
-parameters: c=1,b=2,t=3,u=4 would appear as:
-
- /dev/sd/c1b2t3u4 for the whole disc
- /dev/sd/c1b2t3u4p5 for the 5th partition
- /dev/sd/c1b2t3u4p5s6 for the 6th slice in the 5th partition
-
-
-SCSI Tapes
-
-All SCSI tapes are placed under /dev/st. A similar naming
-scheme is used as for SCSI discs. A SCSI tape with the
-parameters:c=1,b=2,t=3,u=4 would appear as:
-
- /dev/st/c1b2t3u4m0 for mode 0
- /dev/st/c1b2t3u4m1 for mode 1
- /dev/st/c1b2t3u4m2 for mode 2
- /dev/st/c1b2t3u4m3 for mode 3
- /dev/st/c1b2t3u4m0n for mode 0, no rewind
- /dev/st/c1b2t3u4m1n for mode 1, no rewind
- /dev/st/c1b2t3u4m2n for mode 2, no rewind
- /dev/st/c1b2t3u4m3n for mode 3, no rewind
-
-
-SCSI CD-ROMs
-
-All SCSI CD-ROMs are placed under /dev/sr. A similar naming
-scheme is used as for SCSI discs. A SCSI CD-ROM with the
-parameters:c=1,b=2,t=3,u=4 would appear as:
-
- /dev/sr/c1b2t3u4
-
-
-SCSI Generic Devices
-
-The generic (aka. raw) interface for all SCSI devices are placed under
-/dev/sg. A similar naming scheme is used as for SCSI discs. A
-SCSI generic device with the parameters:c=1,b=2,t=3,u=4 would appear
-as:
-
- /dev/sg/c1b2t3u4
-
-
-IDE Hard Discs
-
-All IDE discs are placed under /dev/ide/hd, using a similar
-convention to SCSI discs. The following mappings exist between the new
-and the old names:
-
- /dev/hda /dev/ide/hd/c0b0t0u0
- /dev/hdb /dev/ide/hd/c0b0t1u0
- /dev/hdc /dev/ide/hd/c0b1t0u0
- /dev/hdd /dev/ide/hd/c0b1t1u0
-
-
-IDE Tapes
-
-A similar naming scheme is used as for IDE discs. The entries will
-appear in the /dev/ide/mt directory.
-
-IDE CD-ROM
-
-A similar naming scheme is used as for IDE discs. The entries will
-appear in the /dev/ide/cd directory.
-
-IDE Floppies
-
-A similar naming scheme is used as for IDE discs. The entries will
-appear in the /dev/ide/fd directory.
-
-XT Hard Discs
-
-All XT discs are placed under /dev/xd. The first XT disc
-would appear as /dev/xd/c0t0.
-
-
-Old Compatibility Names
-
-The old compatibility names are the legacy device names, such as
-/dev/hda, /dev/sda, /dev/rtc and so on.
-Devfsd can be configured to create compatibility symlinks so that you
-may continue to use the old names in your configuration files and so
-that old applications will continue to function correctly.
-
-In order to configure devfsd to create these legacy names, the
-following lines should be placed in your /etc/devfsd.conf:
-
-REGISTER .* MKOLDCOMPAT
-UNREGISTER .* RMOLDCOMPAT
-
-This will cause devfsd to create (and destroy) symbolic links which
-point to the kernel-supplied names.
-
-
------------------------------------------------------------------------------
-
-
-Device drivers currently ported
-
-- All miscellaneous character devices support devfs (this is done
- transparently through misc_register())
-
-- SCSI discs and generic hard discs
-
-- Character memory devices (null, zero, full and so on)
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- Loop devices (/dev/loop?)
-
-- TTY devices (console, serial ports, terminals and pseudo-terminals)
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- SCSI tapes (/dev/scsi and /dev/tapes)
-
-- SCSI CD-ROMs (/dev/scsi and /dev/cdroms)
-
-- SCSI generic devices (/dev/scsi)
-
-- RAMDISCS (/dev/ram?)
-
-- Meta Devices (/dev/md*)
-
-- Floppy discs (/dev/floppy)
-
-- Parallel port printers (/dev/printers)
-
-- Sound devices (/dev/sound)
- Thanks to Eric Dumas <dumas@linux.eu.org> and
- C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- Joysticks (/dev/joysticks)
-
-- Sparc keyboard (/dev/kbd)
-
-- DSP56001 digital signal processor (/dev/dsp56k)
-
-- Apple Desktop Bus (/dev/adb)
-
-- Coda network file system (/dev/cfs*)
-
-- Virtual console capture devices (/dev/vcc)
- Thanks to Dennis Hou <smilax@mindmeld.yi.org>
-
-- Frame buffer devices (/dev/fb)
-
-- Video capture devices (/dev/v4l)
-
-
------------------------------------------------------------------------------
-
-
-Allocation of Device Numbers
-
-Devfs allows you to write a driver which doesn't need to allocate a
-device number (major&minor numbers) for the internal operation of the
-kernel. However, there are a number of userspace programmes that use
-the device number as a unique handle for a device. An example is the
-find programme, which uses device numbers to determine whether
-an inode is on a different filesystem than another inode. The device
-number used is the one for the block device which a filesystem is
-using. To preserve compatibility with userspace programmes, block
-devices using devfs need to have unique device numbers allocated to
-them. Furthermore, POSIX specifies device numbers, so some kind of
-device number needs to be presented to userspace.
-
-The simplest option (especially when porting drivers to devfs) is to
-keep using the old major and minor numbers. Devfs will take whatever
-values are given for major&minor and pass them onto userspace.
-
-This device number is a 16 bit number, so this leaves plenty of space
-for large numbers of discs and partitions. This scheme can also be
-used for character devices, in particular the tty devices, which are
-currently limited to 256 pseudo-ttys (this limits the total number of
-simultaneous xterms and remote logins). Note that the device number
-is limited to the range 36864-61439 (majors 144-239), in order to
-avoid any possible conflicts with existing official allocations.
-
-Please note that using dynamically allocated block device numbers may
-break the NFS daemons (both user and kernel mode), which expect dev_t
-for a given device to be constant over the lifetime of remote mounts.
-
-A final note on this scheme: since it doesn't increase the size of
-device numbers, there are no compatibility issues with userspace.
-
------------------------------------------------------------------------------
-
-
-Questions and Answers
-
-
-Making things work
-Alternatives to devfs
-What I don't like about devfs
-How to report bugs
-Strange kernel messages
-Compilation problems with devfsd
-
-
-
-Making things work
-
-Here are some common questions and answers.
-
-
-
-Devfsd doesn't start
-
-Make sure you have compiled and installed devfsd
-Make sure devfsd is being started from your boot
-scripts
-Make sure you have configured your kernel to enable devfs (see
-below)
-Make sure devfs is mounted (see below)
-
-
-Devfsd is not managing all my permissions
-
-Make sure you are capturing the appropriate events. For example,
-device entries created by the kernel generate REGISTER events,
-but those created by devfsd generate CREATE events.
-
-
-Devfsd is not capturing all REGISTER events
-
-See the previous entry: you may need to capture CREATE events.
-
-
-X will not start
-
-Make sure you followed the steps
-outlined above.
-
-
-Why don't my network devices appear in devfs?
-
-This is not a bug. Network devices have their own, completely separate
-namespace. They are accessed via socket(2) and
-setsockopt(2) calls, and thus require no device nodes. I have
-raised the possibilty of moving network devices into the device
-namespace, but have had no response.
-
-
-How can I test if I have devfs compiled into my kernel?
-
-All filesystems built-in or currently loaded are listed in
-/proc/filesystems. If you see a devfs entry, then
-you know that devfs was compiled into your kernel. If you have
-correctly configured and rebuilt your kernel, then devfs will be
-built-in. If you think you've configured it in, but
-/proc/filesystems doesn't show it, you've made a mistake.
-Common mistakes include:
-
-Using a 2.2.x kernel without applying the devfs patch (if you
-don't know how to patch your kernel, use 2.4.x instead, don't bother
-asking me how to patch)
-Forgetting to set CONFIG_EXPERIMENTAL=y
-Forgetting to set CONFIG_DEVFS_FS=y
-Forgetting to set CONFIG_DEVFS_MOUNT=y (if you want devfs
-to be automatically mounted at boot)
-Editing your .config manually, instead of using make
-config or make xconfig
-Forgetting to run make dep; make clean after changing the
-configuration and before compiling
-Forgetting to compile your kernel and modules
-Forgetting to install your kernel
-Forgetting to install your modules
-
-Please check twice that you've done all these steps before sending in
-a bug report.
-
-
-
-How can I test if devfs is mounted on /dev?
-
-The device filesystem will always create an entry called
-".devfsd", which is used to communicate with the daemon. Even
-if the daemon is not running, this entry will exist. Testing for the
-existence of this entry is the approved method of determining if devfs
-is mounted or not. Note that the type of entry (i.e. regular file,
-character device, named pipe, etc.) may change without notice. Only
-the existence of the entry should be relied upon.
-
-
-When I start devfsd, I see the error:
-Error opening file: ".devfsd" No such file or directory?
-
-This means that devfs is not mounted. Make sure you have devfs mounted.
-
-
-How do I mount devfs?
-
-First make sure you have devfs compiled into your kernel (see
-above). Then you will either need to:
-
-set CONFIG_DEVFS_MOUNT=y in your kernel config
-pass devfs=mount to your boot loader
-mount devfs manually in your boot scripts with:
-mount -t none devfs /dev
-
-
-
-Mount by volume LABEL=<label> doesn't work with
-devfs
-
-Most probably you are not mounting devfs onto /dev. What
-happens is that if your kernel config has CONFIG_DEVFS_FS=y
-then the contents of /proc/partitions will have the devfs
-names (such as scsi/host0/bus0/target0/lun0/part1). The
-contents of /proc/partitions are used by mount(8) when
-mounting by volume label. If devfs is not mounted on /dev,
-then mount(8) will fail to find devices. The solution is to
-make sure that devfs is mounted on /dev. See above for how to
-do that.
-
-
-I have extra or incorrect entries in /dev
-
-You may have stale entries in your dev-state area. Check for a
-RESTORE configuration line in your devfsd configuration
-(typically /etc/devfsd.conf). If you have this line, check
-the contents of the specified directory for stale entries. Remove
-any entries which are incorrect, then reboot.
-
-
-I get "Unable to open initial console" messages at boot
-
-This usually happens when you don't have devfs automounted onto
-/dev at boot time, and there is no valid
-/dev/console entry on your root file-system. Create a valid
-/dev/console device node.
-
-
-
-
-
-Alternatives to devfs
-
-I've attempted to collate all the anti-devfs proposals and explain
-their limitations. Under construction.
-
-
-Why not just pass device create/remove events to a daemon?
-
-Here the suggestion is to develop an API in the kernel so that devices
-can register create and remove events, and a daemon listens for those
-events. The daemon would then populate/depopulate /dev (which
-resides on disc).
-
-This has several limitations:
-
-
-it only works for modules loaded and unloaded (or devices inserted
-and removed) after the kernel has finished booting. Without a database
-of events, there is no way the daemon could fully populate
-/dev
-
-
-if you add a database to this scheme, the question is then how to
-present that database to user-space. If you make it a list of strings
-with embedded event codes which are passed through a pipe to the
-daemon, then this is only of use to the daemon. I would argue that the
-natural way to present this data is via a filesystem (since many of
-the events will be of a hierarchical nature), such as devfs.
-Presenting the data as a filesystem makes it easy for the user to see
-what is available and also makes it easy to write scripts to scan the
-"database"
-
-
-the tight binding between device nodes and drivers is no longer
-possible (requiring the otherwise perfectly avoidable
-table lookups)
-
-
-you cannot catch inode lookup events on /dev which means
-that module autoloading requires device nodes to be created. This is a
-problem, particularly for drivers where only a few inodes are created
-from a potentially large set
-
-
-this technique can't be used when the root FS is mounted
-read-only
-
-
-
-
-Just implement a better scsidev
-
-This suggestion involves taking the scsidev programme and
-extending it to scan for all devices, not just SCSI devices. The
-scsidev programme works by scanning /proc/scsi
-
-Problems:
-
-
-the kernel does not currently provide a list of all devices
-available. Not all drivers register entries in /proc or
-generate kernel messages
-
-
-there is no uniform mechanism to register devices other than the
-devfs API
-
-
-implementing such an API is then the same as the
-proposal above
-
-
-
-
-Put /dev on a ramdisc
-
-This suggestion involves creating a ramdisc and populating it with
-device nodes and then mounting it over /dev.
-
-Problems:
-
-
-
-this doesn't help when mounting the root filesystem, since you
-still need a device node to do that
-
-
-if you want to use this technique for the root device node as
-well, you need to use initrd. This complicates the booting sequence
-and makes it significantly harder to administer and configure. The
-initrd is essentially opaque, robbing the system administrator of easy
-configuration
-
-
-insufficient information is available to correctly populate the
-ramdisc. So we come back to the
-proposal above to "solve" this
-
-
-a ramdisc-based solution would take more kernel memory, since the
-backing store would be (at best) normal VFS inodes and dentries, which
-take 284 bytes and 112 bytes, respectively, for each entry. Compare
-that to 72 bytes for devfs
-
-
-
-
-Do nothing: there's no problem
-
-Sometimes people can be heard to claim that the existing scheme is
-fine. This is what they're ignoring:
-
-
-device number size (8 bits each for major and minor) is a real
-limitation, and must be fixed somehow. Systems with large numbers of
-SCSI devices, for example, will continue to consume the remaining
-unallocated major numbers. USB will also need to push beyond the 8 bit
-minor limitation
-
-
-simply increasing the device number size is insufficient. Apart
-from causing a lot of pain, it doesn't solve the management issues
-of a /dev with thousands or more device nodes
-
-
-ignoring the problem of a huge /dev will not make it go
-away, and dismisses the legitimacy of a large number of people who
-want a dynamic /dev
-
-
-the standard response then becomes: "write a device management
-daemon", which brings us back to the
-proposal above
-
-
-
-
-What I don't like about devfs
-
-Here are some common complaints about devfs, and some suggestions and
-solutions that may make it more palatable for you. I can't please
-everybody, but I do try :-)
-
-I hate the naming scheme
-
-First, remember that no naming scheme will please everybody. You hate
-the scheme, others love it. Who's to say who's right and who's wrong?
-Ultimately, the person who writes the code gets to choose, and what
-exists now is a combination of the choices made by the
-devfs author and the
-kernel maintainer (Linus).
-
-However, not all is lost. If you want to create your own naming
-scheme, it is a simple matter to write a standalone script, hack
-devfsd, or write a script called by devfsd. You can create whatever
-naming scheme you like.
-
-Further, if you want to remove all traces of the devfs naming scheme
-from /dev, you can mount devfs elsewhere (say
-/devfs) and populate /dev with links into
-/devfs. This population can be automated using devfsd if you
-wish.
-
-You can even use the VFS binding facility to make the links, rather
-than using symbolic links. This way, you don't even have to see the
-"destination" of these symbolic links.
-
-Devfs puts policy into the kernel
-
-There's already policy in the kernel. Device numbers are in fact
-policy (why should the kernel dictate what device numbers I use?).
-Face it, some policy has to be in the kernel. The real difference
-between device names as policy and device numbers as policy is that
-no one will use device numbers directly, because device
-numbers are devoid of meaning to humans and are ugly. At least with
-the devfs device names, (even though you can add your own naming
-scheme) some people will use the devfs-supplied names directly. This
-offends some people :-)
-
-Devfs is bloatware
-
-This is not even remotely true. As shown above,
-both code and data size are quite modest.
-
-
-How to report bugs
-
-If you have (or think you have) a bug with devfs, please follow the
-steps below:
-
-
-
-make sure you have enabled debugging output when configuring your
-kernel. You will need to set (at least) the following config options:
-
-CONFIG_DEVFS_DEBUG=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DEBUG_SLAB=y
-
-
-
-please make sure you have the latest devfs patches applied. The
-latest kernel version might not have the latest devfs patches applied
-yet (Linus is very busy)
-
-
-save a copy of your complete kernel logs (preferably by
-using the dmesg programme) for later inclusion in your bug
-report. You may need to use the -s switch to increase the
-internal buffer size so you can capture all the boot messages.
-Don't edit or trim the dmesg output
-
-
-
-
-try booting with devfs=dall passed to the kernel boot
-command line (read the documentation on your bootloader on how to do
-this), and save the result to a file. This may be quite verbose, and
-it may overflow the messages buffer, but try to get as much of it as
-you can
-
-
-send a copy of your devfsd configuration file(s)
-
-send the bug report to me first.
-Don't expect that I will see it if you post it to the linux-kernel
-mailing list. Include all the information listed above, plus
-anything else that you think might be relevant. Put the string
-devfs somewhere in the subject line, so my mail filters mark
-it as urgent
-
-
-
-
-Here is a general guide on how to ask questions in a way that greatly
-improves your chances of getting a reply:
-
-http://www.tuxedo.org/~esr/faqs/smart-questions.html. If you have
-a bug to report, you should also read
-
-http://www.chiark.greenend.org.uk/~sgtatham/bugs.html.
-
-
-Strange kernel messages
-
-You may see devfs-related messages in your kernel logs. Below are some
-messages and what they mean (and what you should do about them, if
-anything).
-
-
-
-devfs_register(fred): could not append to parent, err: -17
-
-You need to check what the error code means, but usually 17 means
-EEXIST. This means that a driver attempted to create an entry
-fred in a directory, but there already was an entry with that
-name. This is often caused by flawed boot scripts which untar a bunch
-of inodes into /dev, as a way to restore permissions. This
-message is harmless, as the device nodes will still
-provide access to the driver (unless you use the devfs=only
-boot option, which is only for dedicated souls:-). If you want to get
-rid of these annoying messages, upgrade to devfsd-v1.3.20 and use the
-recommended RESTORE directive to restore permissions.
-
-
-devfs_mk_dir(bill): using old entry in dir: c1808724 ""
-
-This is similar to the message above, except that a driver attempted
-to create a directory named bill, and the parent directory
-has an entry with the same name. In this case, to ensure that drivers
-continue to work properly, the old entry is re-used and given to the
-driver. In 2.5 kernels, the driver is given a NULL entry, and thus,
-under rare circumstances, may not create the require device nodes.
-The solution is the same as above.
-
-
-
-
-
-Compilation problems with devfsd
-
-Usually, you can compile devfsd just by typing in
-make in the source directory, followed by a make
-install (as root). Sometimes, you may have problems, particularly
-on broken configurations.
-
-
-
-error messages relating to DEVFSD_NOTIFY_DELETE
-
-This happened because you have an ancient set of kernel headers
-installed in /usr/include/linux or /usr/src/linux.
-Install kernel 2.4.10 or later. You may need to pass the
-KERNEL_DIR variable to make (if you did not install
-the new kernel sources as /usr/src/linux), or you may copy
-the devfs_fs.h file in the kernel source tree into
-/usr/include/linux.
-
-
-
-
------------------------------------------------------------------------------
-
-
-Other resources
-
-
-
-Douglas Gilbert has written a useful document at
-
-http://www.torque.net/sg/devfs_scsi.html which
-explores the SCSI subsystem and how it interacts with devfs
-
-
-Douglas Gilbert has written another useful document at
-
-http://www.torque.net/scsi/SCSI-2.4-HOWTO/ which
-discusses the Linux SCSI subsystem in 2.4.
-
-
-Johannes Erdfelt has started a discussion paper on Linux and
-hot-swap devices, describing what the requirements are for a scalable
-solution and how and why he's used devfs+devfsd. Note that this is an
-early draft only, available in plain text form at:
-
-http://johannes.erdfelt.com/hotswap.txt.
-Johannes has promised a HTML version will follow.
-
-
-I presented an invited
-paper
-at the
-
-2nd Annual Storage Management Workshop held in Miamia, Florida,
-U.S.A. in October 2000.
-
-
-
-
------------------------------------------------------------------------------
-
-
-Translations of this document
-
-This document has been translated into other languages.
-
-
-
-
-The document master (in English) by rgooch@atnf.csiro.au is
-available at
-
-http://www.atnf.csiro.au/~rgooch/linux/docs/devfs.html
-
-
-
-A Korean translation by viatoris@nownuri.net is available at
-
-http://your.destiny.pe.kr/devfs/devfs.html
-
-
-
-
------------------------------------------------------------------------------
-Most flags courtesy of ITA's
-Flags of All Countries
-used with permission.
diff --git a/Documentation/filesystems/devfs/ToDo b/Documentation/filesystems/devfs/ToDo
deleted file mode 100644
index afd5a8f..0000000
--- a/Documentation/filesystems/devfs/ToDo
+++ /dev/null
@@ -1,40 +0,0 @@
- Device File System (devfs) ToDo List
-
- Richard Gooch <rgooch@atnf.csiro.au>
-
- 3-JUL-2000
-
-This is a list of things to be done for better devfs support in the
-Linux kernel. If you'd like to contribute to the devfs, please have a
-look at this list for anything that is unallocated. Also, if there are
-items missing (surely), please contact me so I can add them to the
-list (preferably with your name attached to them:-).
-
-
-- >256 ptys
- Thanks to C. Scott Ananian <cananian@alumni.princeton.edu>
-
-- Amiga floppy driver (drivers/block/amiflop.c)
-
-- Atari floppy driver (drivers/block/ataflop.c)
-
-- SWIM3 (Super Woz Integrated Machine 3) floppy driver (drivers/block/swim3.c)
-
-- Amiga ZorroII ramdisc driver (drivers/block/z2ram.c)
-
-- Parallel port ATAPI CD-ROM (drivers/block/paride/pcd.c)
-
-- Parallel port ATAPI floppy (drivers/block/paride/pf.c)
-
-- AP1000 block driver (drivers/ap1000/ap.c, drivers/ap1000/ddv.c)
-
-- Archimedes floppy (drivers/acorn/block/fd1772.c)
-
-- MFM hard drive (drivers/acorn/block/mfmhd.c)
-
-- I2O block device (drivers/message/i2o/i2o_block.c)
-
-- ST-RAM device (arch/m68k/atari/stram.c)
-
-- Raw devices
-
diff --git a/Documentation/filesystems/devfs/boot-options b/Documentation/filesystems/devfs/boot-options
deleted file mode 100644
index df3d33b..0000000
--- a/Documentation/filesystems/devfs/boot-options
+++ /dev/null
@@ -1,65 +0,0 @@
-/* -*- auto-fill -*- */
-
- Device File System (devfs) Boot Options
-
- Richard Gooch <rgooch@atnf.csiro.au>
-
- 18-AUG-2001
-
-
-When CONFIG_DEVFS_DEBUG is enabled, you can pass several boot options
-to the kernel to debug devfs. The boot options are prefixed by
-"devfs=", and are separated by commas. Spaces are not allowed. The
-syntax looks like this:
-
-devfs=<option1>,<option2>,<option3>
-
-and so on. For example, if you wanted to turn on debugging for module
-load requests and device registration, you would do:
-
-devfs=dmod,dreg
-
-You may prefix "no" to any option. This will invert the option.
-
-
-Debugging Options
-=================
-
-These requires CONFIG_DEVFS_DEBUG to be enabled.
-Note that all debugging options have 'd' as the first character. By
-default all options are off. All debugging output is sent to the
-kernel logs. The debugging options do not take effect until the devfs
-version message appears (just prior to the root filesystem being
-mounted).
-
-These are the options:
-
-dmod print module load requests to <request_module>
-
-dreg print device register requests to <devfs_register>
-
-dunreg print device unregister requests to <devfs_unregister>
-
-dchange print device change requests to <devfs_set_flags>
-
-dilookup print inode lookup requests
-
-diget print VFS inode allocations
-
-diunlink print inode unlinks
-
-dichange print inode changes
-
-dimknod print calls to mknod(2)
-
-dall some debugging turned on
-
-
-Other Options
-=============
-
-These control the default behaviour of devfs. The options are:
-
-mount mount devfs onto /dev at boot time
-
-only disable non-devfs device nodes for devfs-capable drivers
diff --git a/Documentation/initrd.txt b/Documentation/initrd.txt
index 7de1c80..b1b6440 100644
--- a/Documentation/initrd.txt
+++ b/Documentation/initrd.txt
@@ -67,8 +67,7 @@
as the last process has closed it, all data is freed and /dev/initrd
can't be opened anymore.
- root=/dev/ram0 (without devfs)
- root=/dev/rd/0 (with devfs)
+ root=/dev/ram0
initrd is mounted as root, and the normal boot procedure is followed,
with the RAM disk still mounted as root.
@@ -90,8 +89,7 @@
procedure should create the /initrd directory.
If initrd will not be mounted in some cases, its content is still
-accessible if the following device has been created (note that this
-does not work if using devfs):
+accessible if the following device has been created:
# mknod /dev/initrd b 1 250
# chmod 400 /dev/initrd
@@ -119,8 +117,7 @@
(if space is critical, you may want to use the Minix FS instead of Ext2)
3) mount the file system, e.g.
# mount -t ext2 -o loop initrd /mnt
- 4) create the console device (not necessary if using devfs, but it can't
- hurt to do it anyway):
+ 4) create the console device:
# mkdir /mnt/dev
# mknod /mnt/dev/console c 5 1
5) copy all the files that are needed to properly use the initrd
@@ -152,12 +149,7 @@
root=/dev/ram0 init=/linuxrc rw
-if not using devfs, or
-
- root=/dev/rd/0 init=/linuxrc rw
-
-if using devfs. (rw is only necessary if writing to the initrd file
-system.)
+(rw is only necessary if writing to the initrd file system.)
With LOADLIN, you simply execute
@@ -217,9 +209,9 @@
# exec chroot . what-follows <dev/console >dev/console 2>&1
Where what-follows is a program under the new root, e.g. /sbin/init
-If the new root file system will be used with devfs and has no valid
-/dev directory, devfs must be mounted before invoking chroot in order to
-provide /dev/console.
+If the new root file system will be used with udev and has no valid
+/dev directory, udev must be initialized before invoking chroot in order
+to provide /dev/console.
Note: implementation details of pivot_root may change with time. In order
to ensure compatibility, the following points should be observed:
@@ -236,7 +228,7 @@
disk can be freed:
# umount /initrd
-# blockdev --flushbufs /dev/ram0 # /dev/rd/0 if using devfs
+# blockdev --flushbufs /dev/ram0
It is also possible to use initrd with an NFS-mounted root, see the
pivot_root(8) man page for details.
diff --git a/Documentation/ioctl-number.txt b/Documentation/ioctl-number.txt
index 1543802..edc04d7 100644
--- a/Documentation/ioctl-number.txt
+++ b/Documentation/ioctl-number.txt
@@ -119,7 +119,6 @@
'c' 00-7F linux/comstats.h conflict!
'c' 00-7F linux/coda.h conflict!
'd' 00-FF linux/char/drm/drm/h conflict!
-'d' 00-1F linux/devfs_fs.h conflict!
'd' 00-DF linux/video_decoder.h conflict!
'd' F0-FF linux/digi1.h
'e' all linux/digi1.h conflict!
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 25f8d20..86e9282 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -35,7 +35,6 @@
APM Advanced Power Management support is enabled.
AX25 Appropriate AX.25 support is enabled.
CD Appropriate CD support is enabled.
- DEVFS devfs support is enabled.
DRM Direct Rendering Management support is enabled.
EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
EFI EFI Partitioning (GPT) is enabled
@@ -440,9 +439,6 @@
Format: <area>[,<node>]
See also Documentation/networking/decnet.txt.
- devfs= [DEVFS]
- See Documentation/filesystems/devfs/boot-options.
-
dhash_entries= [KNL]
Set number of hash buckets for dentry cache.
diff --git a/arch/cris/arch-v10/kernel/debugport.c b/arch/cris/arch-v10/kernel/debugport.c
index f3a85b7..dde813e 100644
--- a/arch/cris/arch-v10/kernel/debugport.c
+++ b/arch/cris/arch-v10/kernel/debugport.c
@@ -541,7 +541,7 @@
dummy_driver.init_termios = tty_std_termios;
dummy_driver.init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
dummy_driver.open = dummy_open;
dummy_driver.close = dummy_close;
diff --git a/arch/cris/arch-v32/kernel/debugport.c b/arch/cris/arch-v32/kernel/debugport.c
index ffc1ebf..3dc587e 100644
--- a/arch/cris/arch-v32/kernel/debugport.c
+++ b/arch/cris/arch-v32/kernel/debugport.c
@@ -353,7 +353,7 @@
dummy_driver.init_termios = tty_std_termios;
dummy_driver.init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ dummy_driver.flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
dummy_driver.open = dummy_open;
dummy_driver.close = dummy_close;
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c
index 0a86588..40b44cc 100644
--- a/arch/i386/kernel/microcode.c
+++ b/arch/i386/kernel/microcode.c
@@ -493,7 +493,6 @@
static struct miscdevice microcode_dev = {
.minor = MICROCODE_MINOR,
.name = "microcode",
- .devfs_name = "cpu/microcode",
.fops = µcode_fops,
};
diff --git a/arch/ppc/4xx_io/serial_sicc.c b/arch/ppc/4xx_io/serial_sicc.c
index 98b25fa..1e113d0 100644
--- a/arch/ppc/4xx_io/serial_sicc.c
+++ b/arch/ppc/4xx_io/serial_sicc.c
@@ -1758,7 +1758,7 @@
siccnormal_driver->subtype = SERIAL_TYPE_NORMAL;
siccnormal_driver->init_termios = tty_std_termios;
siccnormal_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- siccnormal_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ siccnormal_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(siccnormal_driver, &sicc_ops);
if (tty_register_driver(siccnormal_driver))
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index 8437ea7..83a4f91 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -417,7 +417,6 @@
static struct miscdevice sq_dev = {
.minor = STORE_QUEUE_MINOR,
.name = "sq",
- .devfs_name = "cpu/sq",
.fops = &sq_fops,
};
diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c
index fc6669e..bc3df95 100644
--- a/arch/sparc64/solaris/socksys.c
+++ b/arch/sparc64/solaris/socksys.c
@@ -26,7 +26,6 @@
#include <linux/slab.h>
#include <linux/syscalls.h>
#include <linux/in.h>
-#include <linux/devfs_fs_kernel.h>
#include <net/sock.h>
@@ -190,8 +189,6 @@
return ret;
}
- devfs_mk_cdev(MKDEV(30, 0), S_IFCHR|S_IRUSR|S_IWUSR, "socksys");
-
file = fcheck(ret);
/* N.B. Is this valid? Suppose the f_ops are in a module ... */
socksys_file_ops = *file->f_op;
@@ -207,5 +204,4 @@
{
if (unregister_chrdev(30, "socksys"))
printk ("Couldn't unregister socksys character device\n");
- devfs_remove ("socksys");
}
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 6c2d4cc..5ca57ca 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -8,7 +8,6 @@
#include "linux/list.h"
#include "linux/kd.h"
#include "linux/interrupt.h"
-#include "linux/devfs_fs_kernel.h"
#include "asm/uaccess.h"
#include "chan_kern.h"
#include "irq_user.h"
@@ -655,7 +654,6 @@
driver->driver_name = line_driver->name;
driver->name = line_driver->device_name;
- driver->devfs_name = line_driver->devfs_name;
driver->major = line_driver->major;
driver->minor_start = line_driver->minor_start;
driver->type = line_driver->type;
diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index a4d6415..6dafd6f 100644
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -54,7 +54,6 @@
static struct line_driver driver = {
.name = "UML serial line",
.device_name = "ttyS",
- .devfs_name = "tts/",
.major = TTY_MAJOR,
.minor_start = 64,
.type = TTY_DRIVER_TYPE_SERIAL,
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 61db8b2..856f568 100644
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -60,7 +60,6 @@
static struct line_driver driver = {
.name = "UML console",
.device_name = "tty",
- .devfs_name = "vc/",
.major = TTY_MAJOR,
.minor_start = 0,
.type = TTY_DRIVER_TYPE_CONSOLE,
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index 290cec6..0345e25 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -25,7 +25,6 @@
#include "linux/blkdev.h"
#include "linux/hdreg.h"
#include "linux/init.h"
-#include "linux/devfs_fs_kernel.h"
#include "linux/cdrom.h"
#include "linux/proc_fs.h"
#include "linux/ctype.h"
@@ -628,7 +627,6 @@
{
struct gendisk *disk;
- char from[sizeof("ubd/nnnnn\0")], to[sizeof("discnnnnn/disc\0")];
int err;
disk = alloc_disk(1 << UBD_SHIFT);
@@ -639,20 +637,10 @@
disk->first_minor = unit << UBD_SHIFT;
disk->fops = &ubd_blops;
set_capacity(disk, size / 512);
- if(major == MAJOR_NR){
+ if(major == MAJOR_NR)
sprintf(disk->disk_name, "ubd%c", 'a' + unit);
- sprintf(disk->devfs_name, "ubd/disc%d", unit);
- sprintf(from, "ubd/%d", unit);
- sprintf(to, "disc%d/disc", unit);
- err = devfs_mk_symlink(from, to);
- if(err)
- printk("ubd_new_disk failed to make link from %s to "
- "%s, error = %d\n", from, to, err);
- }
- else {
+ else
sprintf(disk->disk_name, "ubd_fake%d", unit);
- sprintf(disk->devfs_name, "ubd_fake/disc%d", unit);
- }
/* sysfs register (not for ide fake devices) */
if (major == MAJOR_NR) {
@@ -841,7 +829,6 @@
{
int i;
- devfs_mk_dir("ubd");
if (register_blkdev(MAJOR_NR, "ubd"))
return -1;
@@ -855,7 +842,6 @@
char name[sizeof("ubd_nnn\0")];
snprintf(name, sizeof(name), "ubd_%d", fake_major);
- devfs_mk_dir(name);
if (register_blkdev(fake_major, "ubd"))
return -1;
}
diff --git a/arch/um/include/line.h b/arch/um/include/line.h
index 6ac0f82..27bf2f6 100644
--- a/arch/um/include/line.h
+++ b/arch/um/include/line.h
@@ -17,7 +17,6 @@
struct line_driver {
char *name;
char *device_name;
- char *devfs_name;
short major;
short minor_start;
short type;
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index dd8a150..50ca1aa 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -2530,7 +2530,6 @@
blk_queue_max_sectors(RequestQueue, Controller->MaxBlocksPerCommand);
disk->queue = RequestQueue;
sprintf(disk->disk_name, "rd/c%dd%d", Controller->ControllerNumber, n);
- sprintf(disk->devfs_name, "rd/host%d/target%d", Controller->ControllerNumber, n);
disk->major = MajorNumber;
disk->first_minor = n << DAC960_MaxPartitionsBits;
disk->fops = &DAC960_BlockDeviceOperations;
diff --git a/drivers/block/acsi.c b/drivers/block/acsi.c
index 196c0ec..a317e43 100644
--- a/drivers/block/acsi.c
+++ b/drivers/block/acsi.c
@@ -1732,13 +1732,10 @@
struct gendisk *disk = acsi_gendisk[i];
sprintf(disk->disk_name, "ad%c", 'a'+i);
aip = &acsi_info[NDevices];
- sprintf(disk->devfs_name, "ad/target%d/lun%d", aip->target, aip->lun);
disk->major = ACSI_MAJOR;
disk->first_minor = i << 4;
- if (acsi_info[i].type != HARDDISK) {
+ if (acsi_info[i].type != HARDDISK)
disk->minors = 1;
- strcat(disk->devfs_name, "/disc");
- }
disk->fops = &acsi_fops;
disk->private_data = &acsi_info[i];
set_capacity(disk, acsi_info[i].size);
diff --git a/drivers/block/acsi_slm.c b/drivers/block/acsi_slm.c
index 4cb9c13..4030a8f 100644
--- a/drivers/block/acsi_slm.c
+++ b/drivers/block/acsi_slm.c
@@ -65,7 +65,6 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/slab.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#include <asm/pgtable.h>
@@ -1005,11 +1004,6 @@
BufferP = SLMBuffer;
SLMState = IDLE;
- devfs_mk_dir("slm");
- for (i = 0; i < MAX_SLM; i++) {
- devfs_mk_cdev(MKDEV(ACSI_MAJOR, i),
- S_IFCHR|S_IRUSR|S_IWUSR, "slm/%d", i);
- }
return 0;
}
@@ -1032,10 +1026,6 @@
void cleanup_module(void)
{
- int i;
- for (i = 0; i < MAX_SLM; i++)
- devfs_remove("slm/%d", i);
- devfs_remove("slm");
if (unregister_chrdev( ACSI_MAJOR, "slm" ) != 0)
printk( KERN_ERR "acsi_slm: cleanup_module failed\n");
atari_stram_free( SLMBuffer );
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 39b0f53..05fb083 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -3248,7 +3248,6 @@
q->queuedata = hba[i];
sprintf(disk->disk_name, "cciss/c%dd%d", i, j);
- sprintf(disk->devfs_name, "cciss/host%d/target%d", i, j);
disk->major = hba[i]->major;
disk->first_minor = j << NWD_SHIFT;
disk->fops = &cciss_fops;
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 5eb6fb7..bfd245d 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -33,7 +33,6 @@
#include <linux/blkpg.h>
#include <linux/timer.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/init.h>
#include <linux/hdreg.h>
#include <linux/spinlock.h>
@@ -348,7 +347,6 @@
for(j = 0; j < NWD; j++) {
if (ida_gendisk[i][j]->flags & GENHD_FL_UP)
del_gendisk(ida_gendisk[i][j]);
- devfs_remove("ida/c%dd%d",i,j);
put_disk(ida_gendisk[i][j]);
}
blk_cleanup_queue(hba[i]->queue);
@@ -1807,8 +1805,6 @@
}
- sprintf(disk->devfs_name, "ida/c%dd%d", ctlr, log_unit);
-
info_p->phys_drives =
sense_config_buf->ctlr_phys_drv;
info_p->drv_assign_map
@@ -1844,7 +1840,6 @@
}
}
- devfs_remove("ida");
remove_proc_entry("cpqarray", proc_root_driver);
}
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index dff1e67..0242cbb 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -177,7 +177,6 @@
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/platform_device.h>
#include <linux/buffer_head.h> /* for invalidate_buffers() */
#include <linux/mutex.h>
@@ -224,7 +223,6 @@
static unsigned short virtual_dma_port = 0x3f0;
irqreturn_t floppy_interrupt(int irq, void *dev_id, struct pt_regs *regs);
static int set_dor(int fdc, char mask, char data);
-static void register_devfs_entries(int drive) __init;
#define K_64 0x10000 /* 64KB */
@@ -3676,7 +3674,6 @@
first = 0;
}
printk("%s fd%d is %s", prepend, drive, name);
- register_devfs_entries(drive);
}
*UDP = *params;
}
@@ -3954,37 +3951,6 @@
.media_changed = check_floppy_change,
.revalidate_disk = floppy_revalidate,
};
-static char *table[] = {
- "", "d360", "h1200", "u360", "u720", "h360", "h720",
- "u1440", "u2880", "CompaQ", "h1440", "u1680", "h410",
- "u820", "h1476", "u1722", "h420", "u830", "h1494", "u1743",
- "h880", "u1040", "u1120", "h1600", "u1760", "u1920",
- "u3200", "u3520", "u3840", "u1840", "u800", "u1600",
- NULL
-};
-static int t360[] = { 1, 0 },
- t1200[] = { 2, 5, 6, 10, 12, 14, 16, 18, 20, 23, 0 },
- t3in[] = { 8, 9, 26, 27, 28, 7, 11, 15, 19, 24, 25, 29, 31, 3, 4, 13,
- 17, 21, 22, 30, 0 };
-static int *table_sup[] =
- { NULL, t360, t1200, t3in + 5 + 8, t3in + 5, t3in, t3in };
-
-static void __init register_devfs_entries(int drive)
-{
- int base_minor = (drive < 4) ? drive : (124 + drive);
-
- if (UDP->cmos < ARRAY_SIZE(default_drive_params)) {
- int i = 0;
- do {
- int minor = base_minor + (table_sup[UDP->cmos][i] << 2);
-
- devfs_mk_bdev(MKDEV(FLOPPY_MAJOR, minor),
- S_IFBLK | S_IRUSR | S_IWUSR | S_IRGRP |
- S_IWGRP, "floppy/%d%s", drive,
- table[table_sup[UDP->cmos][i]]);
- } while (table_sup[UDP->cmos][i++]);
- }
-}
/*
* Floppy Driver initialization
@@ -4261,11 +4227,9 @@
motor_off_timer[dr].function = motor_off_callback;
}
- devfs_mk_dir("floppy");
-
err = register_blkdev(FLOPPY_MAJOR, "fd");
if (err)
- goto out_devfs_remove;
+ goto out_put_disk;
floppy_queue = blk_init_queue(do_fd_request, &floppy_lock);
if (!floppy_queue) {
@@ -4424,8 +4388,6 @@
blk_cleanup_queue(floppy_queue);
out_unreg_blkdev:
unregister_blkdev(FLOPPY_MAJOR, "fd");
-out_devfs_remove:
- devfs_remove("floppy");
out_put_disk:
while (dr--) {
del_timer(&motor_off_timer[dr]);
@@ -4586,19 +4548,6 @@
static char *floppy;
-static void unregister_devfs_entries(int drive)
-{
- int i;
-
- if (UDP->cmos < ARRAY_SIZE(default_drive_params)) {
- i = 0;
- do {
- devfs_remove("floppy/%d%s", drive,
- table[table_sup[UDP->cmos][i]]);
- } while (table_sup[UDP->cmos][i++]);
- }
-}
-
static void __init parse_floppy_cfg_string(char *cfg)
{
char *ptr;
@@ -4635,13 +4584,11 @@
if ((allowed_drive_mask & (1 << drive)) &&
fdc_state[FDC(drive)].version != FDC_NONE) {
del_gendisk(disks[drive]);
- unregister_devfs_entries(drive);
device_remove_file(&floppy_device[drive].dev, &dev_attr_cmos);
platform_device_unregister(&floppy_device[drive]);
}
put_disk(disks[drive]);
}
- devfs_remove("floppy");
del_timer_sync(&fd_timeout);
del_timer_sync(&fd_timer);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 18dd026..013c5da 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -63,7 +63,6 @@
#include <linux/blkdev.h>
#include <linux/blkpg.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#include <linux/swap.h>
#include <linux/slab.h>
@@ -1277,8 +1276,6 @@
goto out_mem3;
}
- devfs_mk_dir("loop");
-
for (i = 0; i < max_loop; i++) {
struct loop_device *lo = &loop_dev[i];
struct gendisk *disk = disks[i];
@@ -1296,7 +1293,6 @@
disk->first_minor = i;
disk->fops = &lo_fops;
sprintf(disk->disk_name, "loop%d", i);
- sprintf(disk->devfs_name, "loop/%d", i);
disk->private_data = lo;
disk->queue = lo->lo_queue;
}
@@ -1310,7 +1306,6 @@
out_mem4:
while (i--)
blk_cleanup_queue(loop_dev[i].lo_queue);
- devfs_remove("loop");
i = max_loop;
out_mem3:
while (i--)
@@ -1333,7 +1328,6 @@
blk_cleanup_queue(loop_dev[i].lo_queue);
put_disk(disks[i]);
}
- devfs_remove("loop");
if (unregister_blkdev(LOOP_MAJOR, "loop"))
printk(KERN_WARNING "loop: cannot unregister blkdev\n");
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 7f554f2..39662f0 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -29,8 +29,6 @@
#include <linux/kernel.h>
#include <net/sock.h>
-#include <linux/devfs_fs_kernel.h>
-
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/types.h>
@@ -642,7 +640,6 @@
printk(KERN_INFO "nbd: registered device at major %d\n", NBD_MAJOR);
dprintk(DBG_INIT, "nbd: debugflags=0x%x\n", debugflags);
- devfs_mk_dir("nbd");
for (i = 0; i < nbds_max; i++) {
struct gendisk *disk = nbd_dev[i].disk;
nbd_dev[i].file = NULL;
@@ -660,7 +657,6 @@
disk->private_data = &nbd_dev[i];
disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO;
sprintf(disk->disk_name, "nbd%d", i);
- sprintf(disk->devfs_name, "nbd/%d", i);
set_capacity(disk, 0x7ffffc00ULL << 1); /* 2 TB */
add_disk(disk);
}
@@ -686,7 +682,6 @@
put_disk(disk);
}
}
- devfs_remove("nbd");
unregister_blkdev(NBD_MAJOR, "nbd");
printk(KERN_INFO "nbd: unregistered device at major %d\n", NBD_MAJOR);
}
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 79b8682..13f998a 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -156,7 +156,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/mtio.h>
@@ -674,25 +673,15 @@
err = PTR_ERR(pg_class);
goto out_chrdev;
}
- devfs_mk_dir("pg");
for (unit = 0; unit < PG_UNITS; unit++) {
struct pg *dev = &devices[unit];
- if (dev->present) {
+ if (dev->present)
class_device_create(pg_class, NULL, MKDEV(major, unit),
NULL, "pg%u", unit);
- err = devfs_mk_cdev(MKDEV(major, unit),
- S_IFCHR | S_IRUSR | S_IWUSR, "pg/%u",
- unit);
- if (err)
- goto out_class;
- }
}
err = 0;
goto out;
-out_class:
- class_device_destroy(pg_class, MKDEV(major, unit));
- class_destroy(pg_class);
out_chrdev:
unregister_chrdev(major, "pg");
out:
@@ -705,13 +694,10 @@
for (unit = 0; unit < PG_UNITS; unit++) {
struct pg *dev = &devices[unit];
- if (dev->present) {
+ if (dev->present)
class_device_destroy(pg_class, MKDEV(major, unit));
- devfs_remove("pg/%u", unit);
- }
}
class_destroy(pg_class);
- devfs_remove("pg");
unregister_chrdev(major, name);
for (unit = 0; unit < PG_UNITS; unit++) {
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index d2013d3..35fb266 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -141,7 +141,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/mtio.h>
@@ -971,32 +970,15 @@
goto out_chrdev;
}
- devfs_mk_dir("pt");
for (unit = 0; unit < PT_UNITS; unit++)
if (pt[unit].present) {
class_device_create(pt_class, NULL, MKDEV(major, unit),
NULL, "pt%d", unit);
- err = devfs_mk_cdev(MKDEV(major, unit),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "pt/%d", unit);
- if (err) {
- class_device_destroy(pt_class, MKDEV(major, unit));
- goto out_class;
- }
class_device_create(pt_class, NULL, MKDEV(major, unit + 128),
NULL, "pt%dn", unit);
- err = devfs_mk_cdev(MKDEV(major, unit + 128),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "pt/%dn", unit);
- if (err) {
- class_device_destroy(pt_class, MKDEV(major, unit + 128));
- goto out_class;
- }
}
goto out;
-out_class:
- class_destroy(pt_class);
out_chrdev:
unregister_chrdev(major, "pt");
out:
@@ -1009,12 +991,9 @@
for (unit = 0; unit < PT_UNITS; unit++)
if (pt[unit].present) {
class_device_destroy(pt_class, MKDEV(major, unit));
- devfs_remove("pt/%d", unit);
class_device_destroy(pt_class, MKDEV(major, unit + 128));
- devfs_remove("pt/%dn", unit);
}
class_destroy(pt_class);
- devfs_remove("pt");
unregister_chrdev(major, name);
for (unit = 0; unit < PT_UNITS; unit++)
if (pt[unit].present)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index a04f606..3e4cce5 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2612,7 +2612,6 @@
static struct miscdevice pkt_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = "pktcdvd",
- .devfs_name = "pktcdvd/control",
.fops = &pkt_ctl_fops
};
diff --git a/drivers/block/ps2esdi.c b/drivers/block/ps2esdi.c
index bea75f2..a729013 100644
--- a/drivers/block/ps2esdi.c
+++ b/drivers/block/ps2esdi.c
@@ -421,7 +421,6 @@
disk->major = PS2ESDI_MAJOR;
disk->first_minor = i<<6;
sprintf(disk->disk_name, "ed%c", 'a'+i);
- sprintf(disk->devfs_name, "ed/target%d", i);
disk->fops = &ps2esdi_fops;
ps2esdi_gendisk[i] = disk;
}
diff --git a/drivers/block/rd.c b/drivers/block/rd.c
index 0378da04..a9e1c25 100644
--- a/drivers/block/rd.c
+++ b/drivers/block/rd.c
@@ -50,7 +50,6 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/pagemap.h>
#include <linux/blkdev.h>
#include <linux/genhd.h>
@@ -412,7 +411,6 @@
put_disk(rd_disks[i]);
blk_cleanup_queue(rd_queue[i]);
}
- devfs_remove("rd");
unregister_blkdev(RAMDISK_MAJOR, "ramdisk");
}
@@ -442,8 +440,6 @@
goto out;
}
- devfs_mk_dir("rd");
-
for (i = 0; i < CONFIG_BLK_DEV_RAM_COUNT; i++) {
struct gendisk *disk = rd_disks[i];
@@ -461,7 +457,6 @@
disk->queue = rd_queue[i];
disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO;
sprintf(disk->disk_name, "ram%d", i);
- sprintf(disk->devfs_name, "rd/%d", i);
set_capacity(disk, rd_size * 2);
add_disk(rd_disks[i]);
}
diff --git a/drivers/block/swim3.c b/drivers/block/swim3.c
index 01f042f..6288779 100644
--- a/drivers/block/swim3.c
+++ b/drivers/block/swim3.c
@@ -25,7 +25,6 @@
#include <linux/fd.h>
#include <linux/ioctl.h>
#include <linux/blkdev.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/spinlock.h>
@@ -1019,8 +1018,6 @@
int err = -ENOMEM;
int i;
- devfs_mk_dir("floppy");
-
swim = find_devices("floppy");
while (swim && (floppy_count < MAX_FLOPPIES))
{
@@ -1064,7 +1061,6 @@
disk->queue = swim3_queue;
disk->flags |= GENHD_FL_REMOVABLE;
sprintf(disk->disk_name, "fd%d", i);
- sprintf(disk->devfs_name, "floppy/%d", i);
set_capacity(disk, 2880);
add_disk(disk);
}
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 8144ce9..10a4aa5 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -18,7 +18,6 @@
#include <linux/spinlock.h>
#include <linux/blkdev.h>
#include <linux/sched.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/interrupt.h>
#include <linux/compiler.h>
#include <linux/workqueue.h>
@@ -1510,7 +1509,6 @@
port->disk = disk;
sprintf(disk->disk_name, DRV_NAME "/%u",
(unsigned int) (host->id * CARM_MAX_PORTS) + i);
- sprintf(disk->devfs_name, DRV_NAME "/%u_%u", host->id, i);
disk->major = host->major;
disk->first_minor = i * CARM_MINORS_PER_MAJOR;
disk->fops = &carm_bd_ops;
@@ -1672,8 +1670,6 @@
if (host->flags & FL_DYN_MAJOR)
host->major = rc;
- devfs_mk_dir(DRV_NAME);
-
rc = carm_init_disks(host);
if (rc)
goto err_out_blkdev_disks;
@@ -1739,7 +1735,6 @@
free_irq(pdev->irq, host);
carm_free_disks(host);
- devfs_remove(DRV_NAME);
unregister_blkdev(host->major, host->name);
if (host->major == 160)
clear_bit(0, &carm_major_alloc);
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 60e9a94..d62b49f 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -24,12 +24,10 @@
#include <linux/usb.h>
#include <linux/usb_usual.h>
#include <linux/blkdev.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/timer.h>
#include <scsi/scsi.h>
#define DRV_NAME "ub"
-#define DEVFS_NAME DRV_NAME
#define UB_MAJOR 180
@@ -2291,7 +2289,6 @@
goto err_diskalloc;
sprintf(disk->disk_name, DRV_NAME "%c", lun->id + 'a');
- sprintf(disk->devfs_name, DEVFS_NAME "/%c", lun->id + 'a');
disk->major = UB_MAJOR;
disk->first_minor = lun->id * UB_PARTS_PER_LUN;
disk->fops = &ub_bd_fops;
@@ -2445,7 +2442,6 @@
if ((rc = register_blkdev(UB_MAJOR, DRV_NAME)) != 0)
goto err_regblkdev;
- devfs_mk_dir(DEVFS_NAME);
if ((rc = usb_register(&ub_driver)) != 0)
goto err_register;
@@ -2454,7 +2450,6 @@
return 0;
err_register:
- devfs_remove(DEVFS_NAME);
unregister_blkdev(UB_MAJOR, DRV_NAME);
err_regblkdev:
return rc;
@@ -2464,7 +2459,6 @@
{
usb_deregister(&ub_driver);
- devfs_remove(DEVFS_NAME);
unregister_blkdev(UB_MAJOR, DRV_NAME);
usb_usual_clear_present(USB_US_TYPE_UB);
}
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index f7d4c65..585197b 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -1192,7 +1192,6 @@
for (i = 0; i < num_cards; i++) {
struct gendisk *disk = mm_gendisk[i];
sprintf(disk->disk_name, "umem%c", 'a'+i);
- sprintf(disk->devfs_name, "umem/card%d", i);
spin_lock_init(&cards[i].lock);
disk->major = major_nr;
disk->first_minor = i << MM_SHIFT;
diff --git a/drivers/block/viodasd.c b/drivers/block/viodasd.c
index b0df4f5..ec5a1b9 100644
--- a/drivers/block/viodasd.c
+++ b/drivers/block/viodasd.c
@@ -59,7 +59,6 @@
* numbers 0-255 we get a maximum of 32 disks.
*/
#define VIOD_GENHD_NAME "iseries/vd"
-#define VIOD_GENHD_DEVFS_NAME "iseries/disc"
#define VIOD_VERS "1.64"
@@ -523,8 +522,6 @@
else
snprintf(g->disk_name, sizeof(g->disk_name),
VIOD_GENHD_NAME "%c", 'a' + (dev_no % 26));
- snprintf(g->devfs_name, sizeof(g->devfs_name),
- "%s%d", VIOD_GENHD_DEVFS_NAME, dev_no);
g->fops = &viodasd_fops;
g->queue = q;
g->private_data = d;
diff --git a/drivers/block/xd.c b/drivers/block/xd.c
index cbce7c5..e828e4c 100644
--- a/drivers/block/xd.c
+++ b/drivers/block/xd.c
@@ -215,7 +215,6 @@
disk->major = XT_DISK_MAJOR;
disk->first_minor = i<<6;
sprintf(disk->disk_name, "xd%c", i+'a');
- sprintf(disk->devfs_name, "xd/target%d", i);
disk->fops = &xd_fops;
disk->private_data = p;
disk->queue = xd_queue;
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index bb5e8d6..82ddbdd 100644
--- a/drivers/block/z2ram.c
+++ b/drivers/block/z2ram.c
@@ -354,7 +354,6 @@
z2ram_gendisk->first_minor = 0;
z2ram_gendisk->fops = &z2_fops;
sprintf(z2ram_gendisk->disk_name, "z2ram");
- strcpy(z2ram_gendisk->devfs_name, z2ram_gendisk->disk_name);
z2ram_gendisk->queue = z2_queue;
add_disk(z2ram_gendisk);
diff --git a/drivers/cdrom/aztcd.c b/drivers/cdrom/aztcd.c
index ec00489..ec46949 100644
--- a/drivers/cdrom/aztcd.c
+++ b/drivers/cdrom/aztcd.c
@@ -1918,7 +1918,6 @@
azt_disk->first_minor = 0;
azt_disk->fops = &azt_fops;
sprintf(azt_disk->disk_name, "aztcd");
- sprintf(azt_disk->devfs_name, "aztcd");
azt_disk->queue = azt_queue;
add_disk(azt_disk);
azt_invalidate_buffers();
diff --git a/drivers/cdrom/cdu31a.c b/drivers/cdrom/cdu31a.c
index 72ffd64..5f0f202 100644
--- a/drivers/cdrom/cdu31a.c
+++ b/drivers/cdrom/cdu31a.c
@@ -161,7 +161,6 @@
#include <linux/hdreg.h>
#include <linux/genhd.h>
#include <linux/ioport.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/init.h>
diff --git a/drivers/cdrom/cm206.c b/drivers/cdrom/cm206.c
index f43a988..4ee2886 100644
--- a/drivers/cdrom/cm206.c
+++ b/drivers/cdrom/cm206.c
@@ -187,7 +187,6 @@
#include <linux/interrupt.h>
#include <linux/timer.h>
#include <linux/cdrom.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#include <linux/slab.h>
diff --git a/drivers/cdrom/gscd.c b/drivers/cdrom/gscd.c
index ad5464a..b6ee50a 100644
--- a/drivers/cdrom/gscd.c
+++ b/drivers/cdrom/gscd.c
@@ -955,7 +955,6 @@
gscd_disk->first_minor = 0;
gscd_disk->fops = &gscd_fops;
sprintf(gscd_disk->disk_name, "gscd");
- sprintf(gscd_disk->devfs_name, "gscd");
if (register_blkdev(MAJOR_NR, "gscd")) {
ret = -EIO;
diff --git a/drivers/cdrom/mcdx.c b/drivers/cdrom/mcdx.c
index 0f6e7aa..788c7a0 100644
--- a/drivers/cdrom/mcdx.c
+++ b/drivers/cdrom/mcdx.c
@@ -74,7 +74,6 @@
#include <linux/major.h>
#define MAJOR_NR MITSUMI_X_CDROM_MAJOR
#include <linux/blkdev.h>
-#include <linux/devfs_fs_kernel.h>
#include "mcdx.h"
diff --git a/drivers/cdrom/optcd.c b/drivers/cdrom/optcd.c
index 0b0eab4..25032d7 100644
--- a/drivers/cdrom/optcd.c
+++ b/drivers/cdrom/optcd.c
@@ -2033,7 +2033,6 @@
optcd_disk->first_minor = 0;
optcd_disk->fops = &opt_fops;
sprintf(optcd_disk->disk_name, "optcd");
- sprintf(optcd_disk->devfs_name, "optcd");
if (!request_region(optcd_port, 4, "optcd")) {
printk(KERN_ERR "optcd: conflict, I/O port 0x%x already used\n",
diff --git a/drivers/cdrom/sbpcd.c b/drivers/cdrom/sbpcd.c
index 05c9e86..2fc966c 100644
--- a/drivers/cdrom/sbpcd.c
+++ b/drivers/cdrom/sbpcd.c
@@ -371,7 +371,6 @@
#include <linux/kernel.h>
#include <linux/cdrom.h>
#include <linux/ioport.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/vmalloc.h>
@@ -5808,8 +5807,6 @@
return -ENOMEM;
}
- devfs_mk_dir("sbp");
-
for (j=0;j<NR_SBPCD;j++)
{
struct cdrom_device_info * sbpcd_infop;
@@ -5871,7 +5868,6 @@
disk->fops = &sbpcd_bdops;
strcpy(disk->disk_name, sbpcd_infop->name);
disk->flags = GENHD_FL_CD;
- sprintf(disk->devfs_name, "sbp/c0t%d", p->drv_id);
p->disk = disk;
if (register_cdrom(sbpcd_infop))
{
@@ -5906,7 +5902,6 @@
if (D_S[j].drv_id==-1) continue;
del_gendisk(D_S[j].disk);
put_disk(D_S[j].disk);
- devfs_remove("sbp/c0t%d", j);
vfree(D_S[j].sbp_buf);
if (D_S[j].sbp_audsiz>0)
vfree(D_S[j].aud_buf);
@@ -5917,7 +5912,6 @@
}
vfree(D_S[j].sbpcd_infop);
}
- devfs_remove("sbp");
msg(DBG_INF, "%s module released.\n", major_name);
}
diff --git a/drivers/cdrom/sjcd.c b/drivers/cdrom/sjcd.c
index 74b1cad..bf5aef4e5 100644
--- a/drivers/cdrom/sjcd.c
+++ b/drivers/cdrom/sjcd.c
@@ -1695,7 +1695,6 @@
sjcd_disk->first_minor = 0,
sjcd_disk->fops = &sjcd_fops,
sprintf(sjcd_disk->disk_name, "sjcd");
- sprintf(sjcd_disk->devfs_name, "sjcd");
if (!request_region(sjcd_base, 4,"sjcd")) {
printk
diff --git a/drivers/cdrom/sonycd535.c b/drivers/cdrom/sonycd535.c
index e656599..8f7cc45 100644
--- a/drivers/cdrom/sonycd535.c
+++ b/drivers/cdrom/sonycd535.c
@@ -1589,7 +1589,6 @@
cdu_disk->first_minor = 0;
cdu_disk->fops = &cdu_fops;
sprintf(cdu_disk->disk_name, "cdu");
- sprintf(cdu_disk->devfs_name, "cdu535");
if (!request_region(sony535_cd_base_io, 4, CDU535_HANDLE)) {
printk(KERN_WARNING"sonycd535: Unable to request region 0x%x\n",
diff --git a/drivers/cdrom/viocd.c b/drivers/cdrom/viocd.c
index af6b3bf..54ca931 100644
--- a/drivers/cdrom/viocd.c
+++ b/drivers/cdrom/viocd.c
@@ -49,7 +49,6 @@
#include <asm/iseries/vio.h>
#define VIOCD_DEVICE "iseries/vcd"
-#define VIOCD_DEVICE_DEVFS "iseries/vcd"
#define VIOCD_VERS "1.06"
@@ -688,8 +687,6 @@
gendisk->first_minor = deviceno;
strncpy(gendisk->disk_name, c->name,
sizeof(gendisk->disk_name));
- snprintf(gendisk->devfs_name, sizeof(gendisk->devfs_name),
- VIOCD_DEVICE_DEVFS "%d", deviceno);
blk_queue_max_hw_segments(q, 1);
blk_queue_max_phys_segments(q, 1);
blk_queue_max_sectors(q, 4096 / 512);
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 122e7a7..2657eeb 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -5250,7 +5250,6 @@
cy_serial_driver->owner = THIS_MODULE;
cy_serial_driver->driver_name = "cyclades";
cy_serial_driver->name = "ttyC";
- cy_serial_driver->devfs_name = "tts/C";
cy_serial_driver->major = CYCLADES_MAJOR;
cy_serial_driver->minor_start = 0;
cy_serial_driver->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c
index e233cf2..09b4136 100644
--- a/drivers/char/dsp56k.c
+++ b/drivers/char/dsp56k.c
@@ -33,7 +33,6 @@
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#include <linux/device.h>
@@ -518,17 +517,9 @@
}
class_device_create(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), NULL, "dsp56k");
- err = devfs_mk_cdev(MKDEV(DSP56K_MAJOR, 0),
- S_IFCHR | S_IRUSR | S_IWUSR, "dsp56k");
- if(err)
- goto out_class;
-
printk(banner);
goto out;
-out_class:
- class_device_destroy(dsp56k_class, MKDEV(DSP56K_MAJOR, 0));
- class_destroy(dsp56k_class);
out_chrdev:
unregister_chrdev(DSP56K_MAJOR, "dsp56k");
out:
@@ -541,7 +532,6 @@
class_device_destroy(dsp56k_class, MKDEV(DSP56K_MAJOR, 0));
class_destroy(dsp56k_class);
unregister_chrdev(DSP56K_MAJOR, "dsp56k");
- devfs_remove("dsp56k");
}
module_exit(dsp56k_cleanup_driver);
diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index 87dcaa2..da2c89f 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -62,7 +62,6 @@
#include <linux/init.h> /* for __init, module_{init,exit} */
#include <linux/poll.h> /* for POLLIN, etc. */
#include <linux/dtlk.h> /* local header file for DoubleTalk values */
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#ifdef TRACING
@@ -337,9 +336,6 @@
if (dtlk_dev_probe() == 0)
printk(", MAJOR %d\n", dtlk_major);
- devfs_mk_cdev(MKDEV(dtlk_major, DTLK_MINOR),
- S_IFCHR | S_IRUSR | S_IWUSR, "dtlk");
-
init_timer(&dtlk_timer);
dtlk_timer.function = dtlk_timer_tick;
init_waitqueue_head(&dtlk_process_list);
@@ -357,7 +353,6 @@
dtlk_write_tts(DTLK_CLEAR);
unregister_chrdev(dtlk_major, "dtlk");
- devfs_remove("dtlk");
release_region(dtlk_port_lpc, DTLK_IO_EXTENT);
}
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index dc0602a..d0b3890 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -1232,7 +1232,6 @@
pc_driver->owner = THIS_MODULE;
pc_driver->name = "ttyD";
- pc_driver->devfs_name = "tts/D";
pc_driver->major = DIGI_MAJOR;
pc_driver->minor_start = 0;
pc_driver->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 922174d..9827d17 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -2449,7 +2449,6 @@
esp_driver->owner = THIS_MODULE;
esp_driver->name = "ttyP";
- esp_driver->devfs_name = "tts/P";
esp_driver->major = ESP_IN_MAJOR;
esp_driver->minor_start = 0;
esp_driver->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/ftape/zftape/zftape-init.c b/drivers/char/ftape/zftape/zftape-init.c
index 821357c..3eeb869 100644
--- a/drivers/char/ftape/zftape/zftape-init.c
+++ b/drivers/char/ftape/zftape/zftape-init.c
@@ -33,7 +33,6 @@
#endif
#include <linux/fcntl.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/zftape.h>
#include <linux/init.h>
@@ -332,29 +331,11 @@
zft_class = class_create(THIS_MODULE, "zft");
for (i = 0; i < 4; i++) {
class_device_create(zft_class, NULL, MKDEV(QIC117_TAPE_MAJOR, i), NULL, "qft%i", i);
- devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "qft%i", i);
class_device_create(zft_class, NULL, MKDEV(QIC117_TAPE_MAJOR, i + 4), NULL, "nqft%i", i);
- devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 4),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "nqft%i", i);
class_device_create(zft_class, NULL, MKDEV(QIC117_TAPE_MAJOR, i + 16), NULL, "zqft%i", i);
- devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 16),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "zqft%i", i);
class_device_create(zft_class, NULL, MKDEV(QIC117_TAPE_MAJOR, i + 20), NULL, "nzqft%i", i);
- devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 20),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "nzqft%i", i);
class_device_create(zft_class, NULL, MKDEV(QIC117_TAPE_MAJOR, i + 32), NULL, "rawqft%i", i);
- devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 32),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "rawqft%i", i);
class_device_create(zft_class, NULL, MKDEV(QIC117_TAPE_MAJOR, i + 36), NULL, "nrawrawqft%i", i);
- devfs_mk_cdev(MKDEV(QIC117_TAPE_MAJOR, i + 36),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "nrawqft%i", i);
}
#ifdef CONFIG_ZFT_COMPRESSOR
@@ -380,17 +361,11 @@
TRACE(ft_t_info, "successful");
}
for (i = 0; i < 4; i++) {
- devfs_remove("qft%i", i);
class_device_destroy(zft_class, MKDEV(QIC117_TAPE_MAJOR, i));
- devfs_remove("nqft%i", i);
class_device_destroy(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 4));
- devfs_remove("zqft%i", i);
class_device_destroy(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 16));
- devfs_remove("nzqft%i", i);
class_device_destroy(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 20));
- devfs_remove("rawqft%i", i);
class_device_destroy(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 32));
- devfs_remove("nrawqft%i", i);
class_device_destroy(zft_class, MKDEV(QIC117_TAPE_MAJOR, i + 36));
}
class_destroy(zft_class);
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index a5c6a9d..6e380ae 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -820,7 +820,6 @@
return -ENOMEM;
drv->owner = THIS_MODULE;
- drv->devfs_name = "hvc/";
drv->driver_name = "hvc";
drv->name = "hvc";
drv->major = HVC_MAJOR;
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index afa26b6..130dedc 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -1363,7 +1363,6 @@
hvcs_tty_driver->driver_name = hvcs_driver_name;
hvcs_tty_driver->name = hvcs_device_node;
- hvcs_tty_driver->devfs_name = hvcs_device_node;
/*
* We'll let the system assign us a major number, indicated by leaving
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index a0370ed..7b04eb1 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1154,7 +1154,6 @@
return -ENOMEM;
hvsi_driver->owner = THIS_MODULE;
- hvsi_driver->devfs_name = "hvsi/";
hvsi_driver->driver_name = "hvsi";
hvsi_driver->name = "hvsi";
hvsi_driver->major = HVSI_MAJOR;
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 9ab33c3..8619542 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -91,7 +91,6 @@
#include <linux/module.h>
#include <linux/signal.h>
#include <linux/sched.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
@@ -414,9 +413,7 @@
/* free io addresses and Tibet */
release_region( ip2config.addr[i], 8 );
class_device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i));
- devfs_remove("ip2/ipl%d", i);
class_device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i + 1));
- devfs_remove("ip2/stat%d", i);
}
/* Disable and remove interrupt handler. */
if ( (ip2config.irq[i] > 0) && have_requested_irq(ip2config.irq[i]) ) {
@@ -425,7 +422,6 @@
}
}
class_destroy(ip2_class);
- devfs_remove("ip2");
if ( ( err = tty_unregister_driver ( ip2_tty_driver ) ) ) {
printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n", err);
}
@@ -675,7 +671,6 @@
ip2_tty_driver->owner = THIS_MODULE;
ip2_tty_driver->name = "ttyF";
- ip2_tty_driver->devfs_name = "tts/F";
ip2_tty_driver->driver_name = pcDriver_name;
ip2_tty_driver->major = IP2_TTY_MAJOR;
ip2_tty_driver->minor_start = 0;
@@ -683,7 +678,7 @@
ip2_tty_driver->subtype = SERIAL_TYPE_NORMAL;
ip2_tty_driver->init_termios = tty_std_termios;
ip2_tty_driver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
- ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(ip2_tty_driver, &ip2_ops);
ip2trace (ITRC_NO_PORT, ITRC_INIT, 3, 0 );
@@ -724,26 +719,9 @@
class_device_create(ip2_class, NULL,
MKDEV(IP2_IPL_MAJOR, 4 * i),
NULL, "ipl%d", i);
- err = devfs_mk_cdev(MKDEV(IP2_IPL_MAJOR, 4 * i),
- S_IRUSR | S_IWUSR | S_IRGRP | S_IFCHR,
- "ip2/ipl%d", i);
- if (err) {
- class_device_destroy(ip2_class,
- MKDEV(IP2_IPL_MAJOR, 4 * i));
- goto out_class;
- }
-
class_device_create(ip2_class, NULL,
MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
NULL, "stat%d", i);
- err = devfs_mk_cdev(MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
- S_IRUSR | S_IWUSR | S_IRGRP | S_IFCHR,
- "ip2/stat%d", i);
- if (err) {
- class_device_destroy(ip2_class,
- MKDEV(IP2_IPL_MAJOR, 4 * i + 1));
- goto out_class;
- }
for ( box = 0; box < ABS_MAX_BOXES; ++box )
{
diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index e1c9537..da637ad 100644
--- a/drivers/char/ipmi/ipmi_devintf.c
+++ b/drivers/char/ipmi/ipmi_devintf.c
@@ -40,7 +40,6 @@
#include <linux/poll.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/ipmi.h>
#include <linux/mutex.h>
#include <linux/init.h>
@@ -804,9 +803,6 @@
dev_t dev = MKDEV(ipmi_major, if_num);
struct ipmi_reg_list *entry;
- devfs_mk_cdev(dev, S_IFCHR | S_IRUSR | S_IWUSR,
- "ipmidev/%d", if_num);
-
entry = kmalloc(sizeof(*entry), GFP_KERNEL);
if (!entry) {
printk(KERN_ERR "ipmi_devintf: Unable to create the"
@@ -836,7 +832,6 @@
}
class_device_destroy(ipmi_class, dev);
mutex_unlock(®_list_mutex);
- devfs_remove("ipmidev/%d", if_num);
}
static struct ipmi_smi_watcher smi_watcher =
@@ -872,8 +867,6 @@
ipmi_major = rv;
}
- devfs_mk_dir(DEVICE_NAME);
-
rv = ipmi_smi_watcher_register(&smi_watcher);
if (rv) {
unregister_chrdev(ipmi_major, DEVICE_NAME);
@@ -898,7 +891,6 @@
mutex_unlock(®_list_mutex);
class_destroy(ipmi_class);
ipmi_smi_watcher_unregister(&smi_watcher);
- devfs_remove(DEVICE_NAME);
unregister_chrdev(ipmi_major, DEVICE_NAME);
}
module_exit(cleanup_ipmi);
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index efaaa19..478bf4d 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -1581,7 +1581,6 @@
isicom_normal->owner = THIS_MODULE;
isicom_normal->name = "ttyM";
- isicom_normal->devfs_name = "isicom/";
isicom_normal->major = ISICOM_NMAJOR;
isicom_normal->minor_start = 0;
isicom_normal->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 216c792..c74e566 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -39,7 +39,6 @@
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/device.h>
#include <linux/wait.h>
#include <linux/eisa.h>
@@ -826,11 +825,8 @@
return;
}
put_tty_driver(stli_serial);
- for (i = 0; i < 4; i++) {
- devfs_remove("staliomem/%d", i);
+ for (i = 0; i < 4; i++)
class_device_destroy(istallion_class, MKDEV(STL_SIOMEMMAJOR, i));
- }
- devfs_remove("staliomem");
class_destroy(istallion_class);
if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
printk("STALLION: failed to un-register serial memory device, "
@@ -4728,16 +4724,11 @@
printk(KERN_ERR "STALLION: failed to register serial memory "
"device\n");
- devfs_mk_dir("staliomem");
istallion_class = class_create(THIS_MODULE, "staliomem");
- for (i = 0; i < 4; i++) {
- devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "staliomem/%d", i);
+ for (i = 0; i < 4; i++)
class_device_create(istallion_class, NULL,
MKDEV(STL_SIOMEMMAJOR, i),
NULL, "staliomem%d", i);
- }
/*
* Set up the tty driver structure and register us as a driver.
diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index e572605..b11a390 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -120,7 +120,6 @@
#include <linux/major.h>
#include <linux/sched.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/slab.h>
#include <linux/fcntl.h>
#include <linux/delay.h>
@@ -807,8 +806,6 @@
class_device_create(lp_class, NULL, MKDEV(LP_MAJOR, nr), NULL,
"lp%d", nr);
- devfs_mk_cdev(MKDEV(LP_MAJOR, nr), S_IFCHR | S_IRUGO | S_IWUGO,
- "printers/%d", nr);
printk(KERN_INFO "lp%d: using %s (%s).\n", nr, port->name,
(port->irq == PARPORT_IRQ_NONE)?"polling":"interrupt-driven");
@@ -907,7 +904,6 @@
return -EIO;
}
- devfs_mk_dir("printers");
lp_class = class_create(THIS_MODULE, "printer");
if (IS_ERR(lp_class)) {
err = PTR_ERR(lp_class);
@@ -933,7 +929,6 @@
out_class:
class_destroy(lp_class);
out_devfs:
- devfs_remove("printers");
unregister_chrdev(LP_MAJOR, "lp");
return err;
}
@@ -981,10 +976,8 @@
if (lp_table[offset].dev == NULL)
continue;
parport_unregister_device(lp_table[offset].dev);
- devfs_remove("printers/%d", offset);
class_device_destroy(lp_class, MKDEV(LP_MAJOR, offset));
}
- devfs_remove("printers");
class_destroy(lp_class);
}
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 1fa9fa15..6fe7b6c 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -20,7 +20,6 @@
#include <linux/tty.h>
#include <linux/capability.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/ptrace.h>
#include <linux/device.h>
#include <linux/highmem.h>
@@ -941,13 +940,10 @@
printk("unable to get major %d for memory devs\n", MEM_MAJOR);
mem_class = class_create(THIS_MODULE, "mem");
- for (i = 0; i < ARRAY_SIZE(devlist); i++) {
+ for (i = 0; i < ARRAY_SIZE(devlist); i++)
class_device_create(mem_class, NULL,
MKDEV(MEM_MAJOR, devlist[i].minor),
NULL, devlist[i].name);
- devfs_mk_cdev(MKDEV(MEM_MAJOR, devlist[i].minor),
- S_IFCHR | devlist[i].mode, devlist[i].name);
- }
return 0;
}
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 96eb2a7..dfe1ced 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -44,7 +44,6 @@
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/stat.h>
#include <linux/init.h>
#include <linux/device.h>
@@ -204,7 +203,7 @@
{
struct miscdevice *c;
dev_t dev;
- int err;
+ int err = 0;
down(&misc_sem);
list_for_each_entry(c, &misc_list, list) {
@@ -228,10 +227,6 @@
if (misc->minor < DYNAMIC_MINORS)
misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
- if (misc->devfs_name[0] == '\0') {
- snprintf(misc->devfs_name, sizeof(misc->devfs_name),
- "misc/%s", misc->name);
- }
dev = MKDEV(MISC_MAJOR, misc->minor);
misc->class = class_device_create(misc_class, NULL, dev, misc->dev,
@@ -241,13 +236,6 @@
goto out;
}
- err = devfs_mk_cdev(dev, S_IFCHR|S_IRUSR|S_IWUSR|S_IRGRP,
- misc->devfs_name);
- if (err) {
- class_device_destroy(misc_class, dev);
- goto out;
- }
-
/*
* Add it to the front, so that later devices can "override"
* earlier defaults
@@ -278,7 +266,6 @@
down(&misc_sem);
list_del(&misc->list);
class_device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
- devfs_remove(misc->devfs_name);
if (i < DYNAMIC_MINORS && i>0) {
misc_minors[i>>3] &= ~(1 << (misc->minor & 7));
}
diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c
index d65b310..95e8122 100644
--- a/drivers/char/mmtimer.c
+++ b/drivers/char/mmtimer.c
@@ -25,7 +25,6 @@
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/mm.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/mmtimer.h>
#include <linux/miscdevice.h>
#include <linux/posix-timers.h>
@@ -694,7 +693,6 @@
return -1;
}
- strcpy(mmtimer_miscdev.devfs_name, MMTIMER_NAME);
if (misc_register(&mmtimer_miscdev)) {
printk(KERN_ERR "%s: failed to register device\n",
MMTIMER_NAME);
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 01247cc..52ef61f5 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -342,7 +342,6 @@
init_MUTEX(&moxaBuffSem);
moxaDriver->owner = THIS_MODULE;
moxaDriver->name = "ttyMX";
- moxaDriver->devfs_name = "tts/a";
moxaDriver->major = ttymajor;
moxaDriver->minor_start = 0;
moxaDriver->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c
index bee6c47..24231d9 100644
--- a/drivers/char/ppdev.c
+++ b/drivers/char/ppdev.c
@@ -60,7 +60,6 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/ioctl.h>
#include <linux/parport.h>
#include <linux/ctype.h>
@@ -770,7 +769,7 @@
static int __init ppdev_init (void)
{
- int i, err = 0;
+ int err = 0;
if (register_chrdev (PP_MAJOR, CHRDEV, &pp_fops)) {
printk (KERN_WARNING CHRDEV ": unable to get major %d\n",
@@ -782,11 +781,6 @@
err = PTR_ERR(ppdev_class);
goto out_chrdev;
}
- devfs_mk_dir("parports");
- for (i = 0; i < PARPORT_MAX; i++) {
- devfs_mk_cdev(MKDEV(PP_MAJOR, i),
- S_IFCHR | S_IRUGO | S_IWUGO, "parports/%d", i);
- }
if (parport_register_driver(&pp_driver)) {
printk (KERN_WARNING CHRDEV ": unable to register with parport\n");
goto out_class;
@@ -796,9 +790,6 @@
goto out;
out_class:
- for (i = 0; i < PARPORT_MAX; i++)
- devfs_remove("parports/%d", i);
- devfs_remove("parports");
class_destroy(ppdev_class);
out_chrdev:
unregister_chrdev(PP_MAJOR, CHRDEV);
@@ -808,12 +799,8 @@
static void __exit ppdev_cleanup (void)
{
- int i;
/* Clean up all parport stuff */
- for (i = 0; i < PARPORT_MAX; i++)
- devfs_remove("parports/%d", i);
parport_unregister_driver(&pp_driver);
- devfs_remove("parports");
class_destroy(ppdev_class);
unregister_chrdev (PP_MAJOR, CHRDEV);
}
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 0c17f61..9491e43 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -24,7 +24,6 @@
#include <linux/major.h>
#include <linux/mm.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/sysctl.h>
#include <asm/uaccess.h>
@@ -265,7 +264,6 @@
pty_driver->owner = THIS_MODULE;
pty_driver->driver_name = "pty_master";
pty_driver->name = "pty";
- pty_driver->devfs_name = "pty/m";
pty_driver->major = PTY_MASTER_MAJOR;
pty_driver->minor_start = 0;
pty_driver->type = TTY_DRIVER_TYPE_PTY;
@@ -283,7 +281,6 @@
pty_slave_driver->owner = THIS_MODULE;
pty_slave_driver->driver_name = "pty_slave";
pty_slave_driver->name = "ttyp";
- pty_slave_driver->devfs_name = "pty/s";
pty_slave_driver->major = PTY_SLAVE_MAJOR;
pty_slave_driver->minor_start = 0;
pty_slave_driver->type = TTY_DRIVER_TYPE_PTY;
@@ -351,7 +348,6 @@
static void __init unix98_pty_init(void)
{
- devfs_mk_dir("pts");
ptm_driver = alloc_tty_driver(NR_UNIX98_PTY_MAX);
if (!ptm_driver)
panic("Couldn't allocate Unix98 ptm driver");
@@ -372,7 +368,7 @@
ptm_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
ptm_driver->init_termios.c_lflag = 0;
ptm_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_NO_DEVFS | TTY_DRIVER_DEVPTS_MEM;
+ TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
ptm_driver->other = pts_driver;
tty_set_operations(ptm_driver, &pty_ops);
ptm_driver->ioctl = pty_unix98_ioctl;
@@ -387,7 +383,7 @@
pts_driver->init_termios = tty_std_termios;
pts_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
pts_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
- TTY_DRIVER_NO_DEVFS | TTY_DRIVER_DEVPTS_MEM;
+ TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
pts_driver->other = ptm_driver;
tty_set_operations(pts_driver, &pty_ops);
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 15a7b40..9bf97c5 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -10,7 +10,6 @@
#include <linux/init.h>
#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/major.h>
#include <linux/blkdev.h>
#include <linux/module.h>
@@ -288,7 +287,6 @@
static int __init raw_init(void)
{
- int i;
dev_t dev = MKDEV(RAW_MAJOR, 0);
if (register_chrdev_region(dev, MAX_RAW_MINORS, "raw"))
@@ -310,13 +308,6 @@
}
class_device_create(raw_class, NULL, MKDEV(RAW_MAJOR, 0), NULL, "rawctl");
- devfs_mk_cdev(MKDEV(RAW_MAJOR, 0),
- S_IFCHR | S_IRUGO | S_IWUGO,
- "raw/rawctl");
- for (i = 1; i < MAX_RAW_MINORS; i++)
- devfs_mk_cdev(MKDEV(RAW_MAJOR, i),
- S_IFCHR | S_IRUGO | S_IWUGO,
- "raw/raw%d", i);
return 0;
error:
@@ -326,12 +317,6 @@
static void __exit raw_exit(void)
{
- int i;
-
- for (i = 1; i < MAX_RAW_MINORS; i++)
- devfs_remove("raw/raw%d", i);
- devfs_remove("raw/rawctl");
- devfs_remove("raw");
class_device_destroy(raw_class, MKDEV(RAW_MAJOR, 0));
class_destroy(raw_class);
cdev_del(&raw_cdev);
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index 657c0d8..c84c3c3 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -1634,7 +1634,6 @@
memset(IRQ_to_board, 0, sizeof(IRQ_to_board));
riscom_driver->owner = THIS_MODULE;
riscom_driver->name = "ttyL";
- riscom_driver->devfs_name = "tts/L";
riscom_driver->major = RISCOM8_NORMAL_MAJOR;
riscom_driver->type = TTY_DRIVER_TYPE_SERIAL;
riscom_driver->subtype = SERIAL_TYPE_NORMAL;
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 0708c51..0ac1318 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -2426,8 +2426,7 @@
*/
rocket_driver->owner = THIS_MODULE;
- rocket_driver->flags = TTY_DRIVER_NO_DEVFS;
- rocket_driver->devfs_name = "tts/R";
+ rocket_driver->flags = TTY_DRIVER_DYNAMIC_DEV;
rocket_driver->name = "ttyR";
rocket_driver->driver_name = "Comtrol RocketPort";
rocket_driver->major = TTY_ROCKET_MAJOR;
@@ -2438,7 +2437,7 @@
rocket_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
#ifdef ROCKET_SOFT_FLOW
- rocket_driver->flags |= TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ rocket_driver->flags |= TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
#endif
tty_set_operations(rocket_driver, &rocket_ops);
diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c
index 037c940..c851eea 100644
--- a/drivers/char/serial167.c
+++ b/drivers/char/serial167.c
@@ -2235,7 +2235,6 @@
/* Initialize the tty_driver structure */
cy_serial_driver->owner = THIS_MODULE;
- cy_serial_driver->devfs_name = "tts/";
cy_serial_driver->name = "ttyS";
cy_serial_driver->major = TTY_MAJOR;
cy_serial_driver->minor_start = 64;
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index 00b4a21..0f7a542 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -40,7 +40,6 @@
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/device.h>
#include <linux/delay.h>
@@ -757,11 +756,8 @@
"errno=%d\n", -i);
return;
}
- for (i = 0; i < 4; i++) {
- devfs_remove("staliomem/%d", i);
+ for (i = 0; i < 4; i++)
class_device_destroy(stallion_class, MKDEV(STL_SIOMEMMAJOR, i));
- }
- devfs_remove("staliomem");
if ((i = unregister_chrdev(STL_SIOMEMMAJOR, "staliomem")))
printk("STALLION: failed to un-register serial memory device, "
"errno=%d\n", -i);
@@ -3044,22 +3040,16 @@
*/
if (register_chrdev(STL_SIOMEMMAJOR, "staliomem", &stl_fsiomem))
printk("STALLION: failed to register serial board device\n");
- devfs_mk_dir("staliomem");
stallion_class = class_create(THIS_MODULE, "staliomem");
- for (i = 0; i < 4; i++) {
- devfs_mk_cdev(MKDEV(STL_SIOMEMMAJOR, i),
- S_IFCHR|S_IRUSR|S_IWUSR,
- "staliomem/%d", i);
+ for (i = 0; i < 4; i++)
class_device_create(stallion_class, NULL,
MKDEV(STL_SIOMEMMAJOR, i), NULL,
"staliomem%d", i);
- }
stl_serial->owner = THIS_MODULE;
stl_serial->driver_name = stl_drvname;
stl_serial->name = "ttyE";
- stl_serial->devfs_name = "tts/E";
stl_serial->major = STL_SERIALMAJOR;
stl_serial->minor_start = 0;
stl_serial->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/tipar.c b/drivers/char/tipar.c
index 079db5a..f7802e5 100644
--- a/drivers/char/tipar.c
+++ b/drivers/char/tipar.c
@@ -56,7 +56,6 @@
#include <linux/ioport.h>
#include <asm/io.h>
#include <linux/bitops.h>
-#include <linux/devfs_fs_kernel.h> /* DevFs support */
#include <linux/parport.h> /* Our code depend on parport */
#include <linux/device.h>
@@ -443,12 +442,6 @@
class_device_create(tipar_class, NULL, MKDEV(TIPAR_MAJOR,
TIPAR_MINOR + nr), NULL, "par%d", nr);
- /* Use devfs, tree: /dev/ticables/par/[0..2] */
- err = devfs_mk_cdev(MKDEV(TIPAR_MAJOR, TIPAR_MINOR + nr),
- S_IFCHR | S_IRUGO | S_IWUGO,
- "ticables/par/%d", nr);
- if (err)
- goto out_class;
/* Display informations */
pr_info("tipar%d: using %s (%s)\n", nr, port->name, (port->irq ==
@@ -460,11 +453,7 @@
pr_info("tipar%d: link cable not found\n", nr);
err = 0;
- goto out;
-out_class:
- class_device_destroy(tipar_class, MKDEV(TIPAR_MAJOR, TIPAR_MINOR + nr));
- class_destroy(tipar_class);
out:
return err;
}
@@ -507,9 +496,6 @@
goto out;
}
- /* Use devfs with tree: /dev/ticables/par/[0..2] */
- devfs_mk_dir("ticables/par");
-
tipar_class = class_create(THIS_MODULE, "ticables");
if (IS_ERR(tipar_class)) {
err = PTR_ERR(tipar_class);
@@ -528,7 +514,6 @@
class_destroy(tipar_class);
out_chrdev:
- devfs_remove("ticables/par");
unregister_chrdev(TIPAR_MAJOR, "tipar");
out:
return err;
@@ -549,10 +534,8 @@
continue;
parport_unregister_device(table[i].dev);
class_device_destroy(tipar_class, MKDEV(TIPAR_MAJOR, i));
- devfs_remove("ticables/par/%d", i);
}
class_destroy(tipar_class);
- devfs_remove("ticables/par");
pr_info("tipar: module unloaded\n");
}
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 8d19f72..a114323 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -102,7 +102,6 @@
#include <linux/kbd_kern.h>
#include <linux/vt_kern.h>
#include <linux/selection.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/kmod.h>
@@ -2955,8 +2954,8 @@
* Returns a pointer to the class device (or ERR_PTR(-EFOO) on error).
*
* This call is required to be made to register an individual tty device if
- * the tty driver's flags have the TTY_DRIVER_NO_DEVFS bit set. If that
- * bit is not set, this function should not be called.
+ * the tty driver's flags have the TTY_DRIVER_DYNAMIC_DEV bit set. If that
+ * bit is not set, this function should not be called by a tty driver.
*/
struct class_device *tty_register_device(struct tty_driver *driver,
unsigned index, struct device *device)
@@ -2970,9 +2969,6 @@
return ERR_PTR(-EINVAL);
}
- devfs_mk_cdev(dev, S_IFCHR | S_IRUSR | S_IWUSR,
- "%s%d", driver->devfs_name, index + driver->name_base);
-
if (driver->type == TTY_DRIVER_TYPE_PTY)
pty_line_name(driver, index, name);
else
@@ -2991,7 +2987,6 @@
*/
void tty_unregister_device(struct tty_driver *driver, unsigned index)
{
- devfs_remove("%s%d", driver->devfs_name, index + driver->name_base);
class_device_destroy(tty_class, MKDEV(driver->major, driver->minor_start) + index);
}
@@ -3113,7 +3108,7 @@
list_add(&driver->tty_drivers, &tty_drivers);
- if ( !(driver->flags & TTY_DRIVER_NO_DEVFS) ) {
+ if ( !(driver->flags & TTY_DRIVER_DYNAMIC_DEV) ) {
for(i = 0; i < driver->num; i++)
tty_register_device(driver, i, NULL);
}
@@ -3156,7 +3151,7 @@
driver->termios_locked[i] = NULL;
kfree(tp);
}
- if (!(driver->flags & TTY_DRIVER_NO_DEVFS))
+ if (!(driver->flags & TTY_DRIVER_DYNAMIC_DEV))
tty_unregister_device(driver, i);
}
p = driver->ttys;
@@ -3232,14 +3227,12 @@
if (cdev_add(&tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) ||
register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") < 0)
panic("Couldn't register /dev/tty driver\n");
- devfs_mk_cdev(MKDEV(TTYAUX_MAJOR, 0), S_IFCHR|S_IRUGO|S_IWUGO, "tty");
class_device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), NULL, "tty");
cdev_init(&console_cdev, &console_fops);
if (cdev_add(&console_cdev, MKDEV(TTYAUX_MAJOR, 1), 1) ||
register_chrdev_region(MKDEV(TTYAUX_MAJOR, 1), 1, "/dev/console") < 0)
panic("Couldn't register /dev/console driver\n");
- devfs_mk_cdev(MKDEV(TTYAUX_MAJOR, 1), S_IFCHR|S_IRUSR|S_IWUSR, "console");
class_device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), NULL, "console");
#ifdef CONFIG_UNIX98_PTYS
@@ -3247,7 +3240,6 @@
if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) ||
register_chrdev_region(MKDEV(TTYAUX_MAJOR, 2), 1, "/dev/ptmx") < 0)
panic("Couldn't register /dev/ptmx driver\n");
- devfs_mk_cdev(MKDEV(TTYAUX_MAJOR, 2), S_IFCHR|S_IRUGO|S_IWUGO, "ptmx");
class_device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), NULL, "ptmx");
#endif
@@ -3256,7 +3248,6 @@
if (cdev_add(&vc0_cdev, MKDEV(TTY_MAJOR, 0), 1) ||
register_chrdev_region(MKDEV(TTY_MAJOR, 0), 1, "/dev/vc/0") < 0)
panic("Couldn't register /dev/tty0 driver\n");
- devfs_mk_cdev(MKDEV(TTY_MAJOR, 0), S_IFCHR|S_IRUSR|S_IWUSR, "vc/0");
class_device_create(tty_class, NULL, MKDEV(TTY_MAJOR, 0), NULL, "tty0");
vty_init();
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 3c1dafa..234d7f3 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -26,7 +26,6 @@
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/tty.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
@@ -478,12 +477,6 @@
void vcs_make_devfs(struct tty_struct *tty)
{
- devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 1),
- S_IFCHR|S_IRUSR|S_IWUSR,
- "vcc/%u", tty->index + 1);
- devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 129),
- S_IFCHR|S_IRUSR|S_IWUSR,
- "vcc/a%u", tty->index + 1);
class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1),
NULL, "vcs%u", tty->index + 1);
class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129),
@@ -491,8 +484,6 @@
}
void vcs_remove_devfs(struct tty_struct *tty)
{
- devfs_remove("vcc/%u", tty->index + 1);
- devfs_remove("vcc/a%u", tty->index + 1);
class_device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
class_device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
}
@@ -503,8 +494,6 @@
panic("unable to get major %d for vcs device", VCS_MAJOR);
vc_class = class_create(THIS_MODULE, "vc");
- devfs_mk_cdev(MKDEV(VCS_MAJOR, 0), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/0");
- devfs_mk_cdev(MKDEV(VCS_MAJOR, 128), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/a0");
class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
class_device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
return 0;
diff --git a/drivers/char/viocons.c b/drivers/char/viocons.c
index 4e53603..07f5ce4 100644
--- a/drivers/char/viocons.c
+++ b/drivers/char/viocons.c
@@ -1152,7 +1152,6 @@
viotty_driver = alloc_tty_driver(VTTY_PORTS);
viotty_driver->owner = THIS_MODULE;
viotty_driver->driver_name = "vioconsole";
- viotty_driver->devfs_name = "vcs/";
viotty_driver->name = "tty";
viotty_driver->name_base = 1;
viotty_driver->major = TTY_MAJOR;
diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c
index 11c7e9d..198f150 100644
--- a/drivers/char/viotape.c
+++ b/drivers/char/viotape.c
@@ -43,7 +43,6 @@
#include <linux/dma-mapping.h>
#include <linux/fs.h>
#include <linux/cdev.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/major.h>
#include <linux/completion.h>
#include <linux/proc_fs.h>
@@ -246,7 +245,6 @@
*/
static struct {
unsigned char cur_part;
- int dev_handle;
unsigned char part_stat_rwi[MAX_PARTITIONS];
} state[VIOTAPE_MAX_TAPE];
@@ -959,12 +957,7 @@
"iseries!vt%d", i);
class_device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80),
NULL, "iseries!nvt%d", i);
- devfs_mk_cdev(MKDEV(VIOTAPE_MAJOR, i), S_IFCHR | S_IRUSR | S_IWUSR,
- "iseries/vt%d", i);
- devfs_mk_cdev(MKDEV(VIOTAPE_MAJOR, i | 0x80),
- S_IFCHR | S_IRUSR | S_IWUSR, "iseries/nvt%d", i);
sprintf(tapename, "iseries/vt%d", i);
- state[i].dev_handle = devfs_register_tape(tapename);
printk(VIOTAPE_KERN_INFO "tape %s is iSeries "
"resource %10.10s type %4.4s, model %3.3s\n",
tapename, viotape_unitinfo[i].rsrcname,
@@ -976,9 +969,6 @@
{
int i = vdev->unit_address;
- devfs_remove("iseries/nvt%d", i);
- devfs_remove("iseries/vt%d", i);
- devfs_unregister_tape(state[i].dev_handle);
class_device_destroy(tape_class, MKDEV(VIOTAPE_MAJOR, i | 0x80));
class_device_destroy(tape_class, MKDEV(VIOTAPE_MAJOR, i));
return 0;
diff --git a/drivers/char/vme_scc.c b/drivers/char/vme_scc.c
index fd00822..fe99fc1 100644
--- a/drivers/char/vme_scc.c
+++ b/drivers/char/vme_scc.c
@@ -147,7 +147,6 @@
scc_driver->owner = THIS_MODULE;
scc_driver->driver_name = "scc";
scc_driver->name = "ttyS";
- scc_driver->devfs_name = "tts/";
scc_driver->major = TTY_MAJOR;
scc_driver->minor_start = SCC_MINOR_BASE;
scc_driver->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 714d95f..d6f6503 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -79,7 +79,6 @@
#include <linux/mm.h>
#include <linux/console.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/vt_kern.h>
#include <linux/selection.h>
#include <linux/tiocl.h>
@@ -2663,7 +2662,6 @@
if (!console_driver)
panic("Couldn't allocate console driver\n");
console_driver->owner = THIS_MODULE;
- console_driver->devfs_name = "vc/";
console_driver->name = "tty";
console_driver->name_base = 1;
console_driver->major = TTY_MAJOR;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 99fa424..bfafd48 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -3527,8 +3527,6 @@
drive->driver_data = info;
g->minors = 1;
- snprintf(g->devfs_name, sizeof(g->devfs_name),
- "%s/cd", drive->devfs_name);
g->driverfs_dev = &drive->gendev;
g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
if (ide_cdrom_setup(drive)) {
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index f033d73..d0227c3 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1018,7 +1018,6 @@
struct gendisk *g = idkp->disk;
drive->driver_data = NULL;
- drive->devfs_name[0] = '\0';
g->private_data = NULL;
put_disk(g);
kfree(idkp);
@@ -1222,7 +1221,6 @@
drive->attach = 1;
g->minors = 1 << PARTN_BITS;
- strcpy(g->devfs_name, drive->devfs_name);
g->driverfs_dev = &drive->gendev;
g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0;
set_capacity(g, idedisk_capacity(drive));
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 4656587..6862832 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -2176,7 +2176,6 @@
g->minors = 1 << PARTN_BITS;
g->driverfs_dev = &drive->gendev;
- strcpy(g->devfs_name, drive->devfs_name);
g->flags = drive->removable ? GENHD_FL_REMOVABLE : 0;
g->fops = &idefloppy_ops;
drive->attach = 1;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 9ebf8ae..0d5038a 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -47,7 +47,6 @@
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/ide.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/spinlock.h>
#include <linux/kmod.h>
#include <linux/pci.h>
@@ -1279,10 +1278,6 @@
ide_drive_t *drive = container_of(dev, ide_drive_t, gendev);
spin_lock_irq(&ide_lock);
- if (drive->devfs_name[0] != '\0') {
- devfs_remove(drive->devfs_name);
- drive->devfs_name[0] = '\0';
- }
ide_remove_drive_from_hwgroup(drive);
kfree(drive->id);
drive->id = NULL;
@@ -1316,12 +1311,6 @@
drive->gendev.bus = &ide_bus_type;
drive->gendev.driver_data = drive;
drive->gendev.release = drive_release_dev;
- if (drive->present) {
- sprintf(drive->devfs_name, "ide/host%d/bus%d/target%d/lun%d",
- (hwif->channel && hwif->mate) ?
- hwif->mate->index : hwif->index,
- hwif->channel, unit, drive->lun);
- }
}
blk_register_region(MKDEV(hwif->major, 0), MAX_DRIVES << PARTN_BITS,
THIS_MODULE, ata_probe, ata_lock, hwif);
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 09f3a7d..4b91101 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -435,7 +435,6 @@
#include <linux/interrupt.h>
#include <linux/jiffies.h>
#include <linux/major.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/errno.h>
#include <linux/genhd.h>
#include <linux/slab.h>
@@ -4726,9 +4725,6 @@
MKDEV(IDETAPE_MAJOR, tape->minor));
class_device_destroy(idetape_sysfs_class,
MKDEV(IDETAPE_MAJOR, tape->minor + 128));
- devfs_remove("%s/mt", drive->devfs_name);
- devfs_remove("%s/mtn", drive->devfs_name);
- devfs_unregister_tape(g->number);
idetape_devs[tape->minor] = NULL;
g->private_data = NULL;
put_disk(g);
@@ -4902,14 +4898,6 @@
class_device_create(idetape_sysfs_class, NULL,
MKDEV(IDETAPE_MAJOR, minor + 128), &drive->gendev, "n%s", tape->name);
- devfs_mk_cdev(MKDEV(HWIF(drive)->major, minor),
- S_IFCHR | S_IRUGO | S_IWUGO,
- "%s/mt", drive->devfs_name);
- devfs_mk_cdev(MKDEV(HWIF(drive)->major, minor + 128),
- S_IFCHR | S_IRUGO | S_IWUGO,
- "%s/mtn", drive->devfs_name);
-
- g->number = devfs_register_tape(drive->devfs_name);
g->fops = &idetape_block_ops;
ide_register_region(g);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 59fe358..1cdf442 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -147,7 +147,6 @@
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/ide.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/completion.h>
#include <linux/reboot.h>
#include <linux/cdrom.h>
@@ -592,13 +591,8 @@
goto abort;
for (unit = 0; unit < MAX_DRIVES; ++unit) {
drive = &hwif->drives[unit];
- if (!drive->present) {
- if (drive->devfs_name[0] != '\0') {
- devfs_remove(drive->devfs_name);
- drive->devfs_name[0] = '\0';
- }
+ if (!drive->present)
continue;
- }
spin_unlock_irq(&ide_lock);
device_unregister(&drive->gendev);
wait_for_completion(&drive->gendev_rel_comp);
@@ -1996,7 +1990,6 @@
static int __init ide_init(void)
{
printk(KERN_INFO "Uniform Multi-Platform E-IDE driver " REVISION "\n");
- devfs_mk_dir("ide");
system_bus_speed = ide_system_bus_speed();
bus_register(&ide_bus_type);
@@ -2074,7 +2067,6 @@
#ifdef CONFIG_PROC_FS
proc_ide_destroy();
#endif
- devfs_remove("ide");
bus_unregister(&ide_bus_type);
}
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 5a2703b..71a8eea 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -16,7 +16,6 @@
#include <linux/init.h>
#include <linux/major.h>
#include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/miscdevice.h>
#include <linux/wait.h>
#include <linux/mutex.h>
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 2e541fa..a518ec5 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -39,7 +39,6 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/moduleparam.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/isdn/capiutil.h>
#include <linux/isdn/capicmd.h>
#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE)
@@ -1337,7 +1336,6 @@
drv->owner = THIS_MODULE;
drv->driver_name = "capi_nc";
- drv->devfs_name = "capi/";
drv->name = "capi";
drv->major = capi_ttymajor;
drv->minor_start = 0;
@@ -1516,8 +1514,6 @@
}
class_device_create(capi_class, NULL, MKDEV(capi_major, 0), NULL, "capi");
- devfs_mk_cdev(MKDEV(capi_major, 0), S_IFCHR | S_IRUSR | S_IWUSR,
- "isdn/capi20");
#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
if (capinc_tty_init() < 0) {
@@ -1552,7 +1548,6 @@
class_device_destroy(capi_class, MKDEV(capi_major, 0));
class_destroy(capi_class);
unregister_chrdev(capi_major, "capi20");
- devfs_remove("isdn/capi20");
#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
capinc_tty_exit();
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index 8a45715..3845def 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -41,7 +41,6 @@
#define GIGASET_MINORS 1
#define GIGASET_MINOR 16
#define GIGASET_MODULENAME "bas_gigaset"
-#define GIGASET_DEVFSNAME "gig/bas/"
#define GIGASET_DEVNAME "ttyGB"
/* length limit according to Siemens 3070usb-protokoll.doc ch. 2.1 */
@@ -2349,8 +2348,7 @@
/* allocate memory for our driver state and intialize it */
if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
GIGASET_MODULENAME, GIGASET_DEVNAME,
- GIGASET_DEVFSNAME, &gigops,
- THIS_MODULE)) == NULL)
+ &gigops, THIS_MODULE)) == NULL)
goto error;
/* allocate memory for our device state and intialize it */
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index 2a56bf3..aca165d 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -1092,14 +1092,12 @@
* minors Number of minors this driver can handle
* procname Name of the driver
* devname Name of the device files (prefix without minor number)
- * devfsname Devfs name of the device files without %d
* return value:
* Pointer to the gigaset_driver structure on success, NULL on failure.
*/
struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
const char *procname,
const char *devname,
- const char *devfsname,
const struct gigaset_ops *ops,
struct module *owner)
{
@@ -1139,7 +1137,7 @@
drv->cs[i].minor_index = i;
}
- gigaset_if_initdriver(drv, procname, devname, devfsname);
+ gigaset_if_initdriver(drv, procname, devname);
spin_lock_irqsave(&driver_lock, flags);
list_add(&drv->list, &drivers);
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 8d63d82..1ca3bfd 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -769,7 +769,6 @@
struct gigaset_driver *gigaset_initdriver(unsigned minor, unsigned minors,
const char *procname,
const char *devname,
- const char *devfsname,
const struct gigaset_ops *ops,
struct module *owner);
@@ -892,7 +891,7 @@
/* initialize interface */
void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
- const char *devname, const char *devfsname);
+ const char *devname);
/* release interface */
void gigaset_if_freedriver(struct gigaset_driver *drv);
/* add minor */
diff --git a/drivers/isdn/gigaset/interface.c b/drivers/isdn/gigaset/interface.c
index 74fd234..bd2e426 100644
--- a/drivers/isdn/gigaset/interface.c
+++ b/drivers/isdn/gigaset/interface.c
@@ -673,10 +673,9 @@
* drv Driver
* procname Name of the driver (e.g. for /proc/tty/drivers)
* devname Name of the device files (prefix without minor number)
- * devfsname Devfs name of the device files without %d
*/
void gigaset_if_initdriver(struct gigaset_driver *drv, const char *procname,
- const char *devname, const char *devfsname)
+ const char *devname)
{
unsigned minors = drv->minors;
int ret;
@@ -692,7 +691,7 @@
tty->major = GIG_MAJOR,
tty->type = TTY_DRIVER_TYPE_SERIAL,
tty->subtype = SERIAL_TYPE_NORMAL,
- tty->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS,
+ tty->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty->driver_name = procname;
tty->name = devname;
@@ -700,7 +699,6 @@
tty->num = drv->minors;
tty->owner = THIS_MODULE;
- tty->devfs_name = devfsname;
tty->init_termios = tty_std_termios; //FIXME
tty->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; //FIXME
diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index d86ab68..6e05d9d 100644
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -41,7 +41,6 @@
#define GIGASET_MINORS 1
#define GIGASET_MINOR 8
#define GIGASET_MODULENAME "usb_gigaset"
-#define GIGASET_DEVFSNAME "gig/usb/"
#define GIGASET_DEVNAME "ttyGU"
#define IF_WRITEBUF 2000 //FIXME // WAKEUP_CHARS: 256
@@ -896,8 +895,7 @@
/* allocate memory for our driver state and intialize it */
if ((driver = gigaset_initdriver(GIGASET_MINOR, GIGASET_MINORS,
GIGASET_MODULENAME, GIGASET_DEVNAME,
- GIGASET_DEVFSNAME, &ops,
- THIS_MODULE)) == NULL)
+ &ops, THIS_MODULE)) == NULL)
goto error;
/* allocate memory for our device state and intialize it */
diff --git a/drivers/isdn/hardware/eicon/divamnt.c b/drivers/isdn/hardware/eicon/divamnt.c
index 6146f76..b163c59 100644
--- a/drivers/isdn/hardware/eicon/divamnt.c
+++ b/drivers/isdn/hardware/eicon/divamnt.c
@@ -17,7 +17,6 @@
#include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/poll.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include "platform.h"
@@ -178,7 +177,6 @@
static void divas_maint_unregister_chrdev(void)
{
- devfs_remove(DEVNAME);
unregister_chrdev(major, DEVNAME);
}
@@ -190,7 +188,6 @@
DRIVERLNAME);
return (0);
}
- devfs_mk_cdev(MKDEV(major, 0), S_IFCHR|S_IRUSR|S_IWUSR, DEVNAME);
return (1);
}
diff --git a/drivers/isdn/hardware/eicon/divasi.c b/drivers/isdn/hardware/eicon/divasi.c
index df715b4..6e7d89a 100644
--- a/drivers/isdn/hardware/eicon/divasi.c
+++ b/drivers/isdn/hardware/eicon/divasi.c
@@ -19,7 +19,6 @@
#include <linux/poll.h>
#include <linux/proc_fs.h>
#include <linux/skbuff.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include "platform.h"
@@ -145,7 +144,6 @@
static void divas_idi_unregister_chrdev(void)
{
- devfs_remove(DEVNAME);
unregister_chrdev(major, DEVNAME);
}
@@ -157,7 +155,6 @@
DRIVERLNAME);
return (0);
}
- devfs_mk_cdev(MKDEV(major, 0), S_IFCHR|S_IRUSR|S_IWUSR, DEVNAME);
return (1);
}
diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c
index c9b26e8..9dee6a3 100644
--- a/drivers/isdn/hardware/eicon/divasmain.c
+++ b/drivers/isdn/hardware/eicon/divasmain.c
@@ -14,7 +14,6 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/ioport.h>
@@ -678,7 +677,6 @@
static void divas_unregister_chrdev(void)
{
- devfs_remove(DEVNAME);
unregister_chrdev(major, DEVNAME);
}
@@ -690,7 +688,6 @@
DRIVERLNAME);
return (0);
}
- devfs_mk_cdev(MKDEV(major, 0), S_IFCHR|S_IRUSR|S_IWUSR, DEVNAME);
return (1);
}
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 433389d..0a53a99 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -1890,14 +1890,13 @@
if (!m->tty_modem)
return -ENOMEM;
m->tty_modem->name = "ttyI";
- m->tty_modem->devfs_name = "isdn/ttyI";
m->tty_modem->major = ISDN_TTY_MAJOR;
m->tty_modem->minor_start = 0;
m->tty_modem->type = TTY_DRIVER_TYPE_SERIAL;
m->tty_modem->subtype = SERIAL_TYPE_NORMAL;
m->tty_modem->init_termios = tty_std_termios;
m->tty_modem->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ m->tty_modem->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
m->tty_modem->driver_name = "isdn_tty";
tty_set_operations(m->tty_modem, &modem_ops);
retval = tty_register_driver(m->tty_modem);
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 259fd89..9f1a049 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -36,7 +36,6 @@
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/device.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include <asm/semaphore.h>
@@ -904,8 +903,6 @@
return;
}
- devfs_mk_cdev(MKDEV(ADB_MAJOR, 0), S_IFCHR | S_IRUSR | S_IWUSR, "adb");
-
adb_dev_class = class_create(THIS_MODULE, "adb");
if (IS_ERR(adb_dev_class))
return;
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 3edb347..d13bb15 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -13,7 +13,6 @@
#include <linux/init.h>
#include <linux/wait.h>
#include <linux/slab.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/dm-ioctl.h>
#include <linux/hdreg.h>
@@ -68,14 +67,12 @@
{
init_buckets(_name_buckets);
init_buckets(_uuid_buckets);
- devfs_mk_dir(DM_DIR);
return 0;
}
static void dm_hash_exit(void)
{
dm_hash_remove_all(0);
- devfs_remove(DM_DIR);
}
/*-----------------------------------------------------------------
@@ -172,25 +169,6 @@
}
/*
- * devfs stuff.
- */
-static int register_with_devfs(struct hash_cell *hc)
-{
- struct gendisk *disk = dm_disk(hc->md);
-
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
- S_IFBLK | S_IRUSR | S_IWUSR | S_IRGRP,
- DM_DIR "/%s", hc->name);
- return 0;
-}
-
-static int unregister_with_devfs(struct hash_cell *hc)
-{
- devfs_remove(DM_DIR"/%s", hc->name);
- return 0;
-}
-
-/*
* The kdev_t and uuid of a device can never change once it is
* initially inserted.
*/
@@ -226,7 +204,6 @@
}
list_add(&cell->uuid_list, _uuid_buckets + hash_str(uuid));
}
- register_with_devfs(cell);
dm_get(md);
dm_set_mdptr(md, cell);
up_write(&_hash_lock);
@@ -246,7 +223,6 @@
/* remove from the dev hash */
list_del(&hc->uuid_list);
list_del(&hc->name_list);
- unregister_with_devfs(hc);
dm_set_mdptr(hc->md, NULL);
table = dm_get_table(hc->md);
@@ -342,16 +318,11 @@
/*
* rename and move the name cell.
*/
- unregister_with_devfs(hc);
-
list_del(&hc->name_list);
old_name = hc->name;
hc->name = new_name;
list_add(&hc->name_list, _name_buckets + hash_str(new_name));
- /* rename the device node in devfs */
- register_with_devfs(hc);
-
/*
* Wake up any dm event waiters.
*/
@@ -1501,7 +1472,6 @@
static struct miscdevice _dm_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = DM_NAME,
- .devfs_name = "mapper/control",
.fops = &_ctl_fops
};
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 3ed2e53..c99bf9f 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -167,7 +167,7 @@
bioset_free(dm_set);
if (unregister_blkdev(_major, _name) < 0)
- DMERR("devfs_unregister_blkdev failed");
+ DMERR("unregister_blkdev failed");
_major = 0;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 306268e..2ec1b35 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -39,7 +39,6 @@
#include <linux/raid/md.h>
#include <linux/raid/bitmap.h>
#include <linux/sysctl.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/buffer_head.h> /* for invalidate_bdev */
#include <linux/suspend.h>
#include <linux/poll.h>
@@ -2911,13 +2910,10 @@
}
disk->major = MAJOR(dev);
disk->first_minor = unit << shift;
- if (partitioned) {
+ if (partitioned)
sprintf(disk->disk_name, "md_d%d", unit);
- sprintf(disk->devfs_name, "md/d%d", unit);
- } else {
+ else
sprintf(disk->disk_name, "md%d", unit);
- sprintf(disk->devfs_name, "md/%d", unit);
- }
disk->fops = &md_fops;
disk->private_data = mddev;
disk->queue = mddev->queue;
@@ -5538,8 +5534,6 @@
static int __init md_init(void)
{
- int minor;
-
printk(KERN_INFO "md: md driver %d.%d.%d MAX_MD_DEVS=%d,"
" MD_SB_DISKS=%d\n",
MD_MAJOR_VERSION, MD_MINOR_VERSION,
@@ -5553,23 +5547,11 @@
unregister_blkdev(MAJOR_NR, "md");
return -1;
}
- devfs_mk_dir("md");
blk_register_region(MKDEV(MAJOR_NR, 0), MAX_MD_DEVS, THIS_MODULE,
md_probe, NULL, NULL);
blk_register_region(MKDEV(mdp_major, 0), MAX_MD_DEVS<<MdpMinorShift, THIS_MODULE,
md_probe, NULL, NULL);
- for (minor=0; minor < MAX_MD_DEVS; ++minor)
- devfs_mk_bdev(MKDEV(MAJOR_NR, minor),
- S_IFBLK|S_IRUSR|S_IWUSR,
- "md/%d", minor);
-
- for (minor=0; minor < MAX_MD_DEVS; ++minor)
- devfs_mk_bdev(MKDEV(mdp_major, minor<<MdpMinorShift),
- S_IFBLK|S_IRUSR|S_IWUSR,
- "md/mdp%d", minor);
-
-
register_reboot_notifier(&md_notifier);
raid_table_header = register_sysctl_table(raid_root_table, 1);
@@ -5625,15 +5607,9 @@
{
mddev_t *mddev;
struct list_head *tmp;
- int i;
+
blk_unregister_region(MKDEV(MAJOR_NR,0), MAX_MD_DEVS);
blk_unregister_region(MKDEV(mdp_major,0), MAX_MD_DEVS << MdpMinorShift);
- for (i=0; i < MAX_MD_DEVS; i++)
- devfs_remove("md/%d", i);
- for (i=0; i < MAX_MD_DEVS; i++)
- devfs_remove("md/d%d", i);
-
- devfs_remove("md");
unregister_blkdev(MAJOR_NR,"md");
unregister_blkdev(mdp_major, "mdp");
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index 134c2bb..40774fe 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -231,10 +231,6 @@
mutex_unlock(&dvbdev_register_lock);
- devfs_mk_cdev(MKDEV(DVB_MAJOR, nums2minor(adap->num, type, id)),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "dvb/adapter%d/%s%d", adap->num, dnames[type], id);
-
class_device_create(dvb_class, NULL, MKDEV(DVB_MAJOR, nums2minor(adap->num, type, id)),
adap->device, "dvb%d.%s%d", adap->num, dnames[type], id);
@@ -252,9 +248,6 @@
if (!dvbdev)
return;
- devfs_remove("dvb/adapter%d/%s%d", dvbdev->adapter->num,
- dnames[dvbdev->type], dvbdev->id);
-
class_device_destroy(dvb_class, MKDEV(DVB_MAJOR, nums2minor(dvbdev->adapter->num,
dvbdev->type, dvbdev->id)));
@@ -302,7 +295,6 @@
printk ("DVB: registering new adapter (%s).\n", name);
- devfs_mk_dir("dvb/adapter%d", num);
adap->num = num;
adap->name = name;
adap->module = module;
@@ -319,8 +311,6 @@
int dvb_unregister_adapter(struct dvb_adapter *adap)
{
- devfs_remove("dvb/adapter%d", adap->num);
-
if (mutex_lock_interruptible(&dvbdev_register_lock))
return -ERESTARTSYS;
list_del (&adap->list_head);
@@ -410,8 +400,6 @@
goto error;
}
- devfs_mk_dir("dvb");
-
dvb_class = class_create(THIS_MODULE, "dvb");
if (IS_ERR(dvb_class)) {
retval = PTR_ERR(dvb_class);
@@ -428,7 +416,6 @@
static void __exit exit_dvbdev(void)
{
- devfs_remove("dvb");
class_destroy(dvb_class);
cdev_del(&dvb_device_cdev);
unregister_chrdev_region(MKDEV(DVB_MAJOR, 0), MAX_DVB_MINORS);
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index d7a976d..7a7f75f 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -27,7 +27,6 @@
#include <linux/poll.h>
#include <linux/fs.h>
#include <linux/list.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#define DVB_MAJOR 212
diff --git a/drivers/media/dvb/ttpci/av7110.h b/drivers/media/dvb/ttpci/av7110.h
index 3e2e121..9c79696 100644
--- a/drivers/media/dvb/ttpci/av7110.h
+++ b/drivers/media/dvb/ttpci/av7110.h
@@ -6,10 +6,6 @@
#include <linux/netdevice.h>
#include <linux/i2c.h>
-#ifdef CONFIG_DEVFS_FS
-#include <linux/devfs_fs_kernel.h>
-#endif
-
#include <linux/dvb/video.h>
#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
diff --git a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
index 14559ef..336b2fe 100644
--- a/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
+++ b/drivers/media/dvb/ttusb-budget/dvb-ttusb-budget.c
@@ -126,10 +126,6 @@
int revision;
-#if 0
- devfs_handle_t stc_devfs_handle;
-#endif
-
struct dvb_frontend* fe;
};
@@ -1746,13 +1742,6 @@
return -ENODEV;
}
-#if 0
- ttusb->stc_devfs_handle =
- devfs_register(ttusb->adapter->devfs_handle, TTUSB_BUDGET_NAME,
- DEVFS_FL_DEFAULT, 0, 192,
- S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP
- | S_IROTH | S_IWOTH, &stc_fops, ttusb);
-#endif
usb_set_intfdata(intf, (void *) ttusb);
frontend_init(ttusb);
diff --git a/drivers/media/radio/miropcm20-rds.c b/drivers/media/radio/miropcm20-rds.c
index 87b37b7..c1b1db6 100644
--- a/drivers/media/radio/miropcm20-rds.c
+++ b/drivers/media/radio/miropcm20-rds.c
@@ -115,7 +115,6 @@
static struct miscdevice rds_miscdev = {
.minor = MISC_DYNAMIC_MINOR,
.name = "radiotext",
- .devfs_name = "v4l/rds/radiotext",
.fops = &rds_fops,
};
diff --git a/drivers/media/video/arv.c b/drivers/media/video/arv.c
index 6e08e32..ae14f5f 100644
--- a/drivers/media/video/arv.c
+++ b/drivers/media/video/arv.c
@@ -20,7 +20,6 @@
#include <linux/config.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/errno.h>
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index 2dfa7f2..b26ebaf 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -37,7 +37,6 @@
#include <linux/init.h>
#include <linux/kmod.h>
#include <linux/slab.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -1563,10 +1562,6 @@
video_device[i]=vfd;
vfd->minor=i;
mutex_unlock(&videodev_lock);
-
- sprintf(vfd->devfs_name, "v4l/%s%d", name_base, i - base);
- devfs_mk_cdev(MKDEV(VIDEO_MAJOR, vfd->minor),
- S_IFCHR | S_IRUSR | S_IWUSR, vfd->devfs_name);
mutex_init(&vfd->lock);
/* sysfs class */
@@ -1575,7 +1570,7 @@
vfd->class_dev.dev = vfd->dev;
vfd->class_dev.class = &video_class;
vfd->class_dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
- strlcpy(vfd->class_dev.class_id, vfd->devfs_name + 4, BUS_ID_SIZE);
+ sprintf(vfd->class_dev.class_id, "%s%d", name_base, i - base);
class_device_register(&vfd->class_dev);
class_device_create_file(&vfd->class_dev,
&class_device_attr_name);
@@ -1604,7 +1599,6 @@
if(video_device[vfd->minor]!=vfd)
panic("videodev: bad unregister");
- devfs_remove(vfd->devfs_name);
video_device[vfd->minor]=NULL;
class_device_unregister(&vfd->class_dev);
mutex_unlock(&videodev_lock);
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index 7d4c549..1ddc2fb 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -1089,7 +1089,6 @@
gd = i2o_blk_dev->gd;
gd->first_minor = unit << 4;
sprintf(gd->disk_name, "i2o/hd%c", 'a' + unit);
- sprintf(gd->devfs_name, "i2o/hd%c", 'a' + unit);
gd->driverfs_dev = &i2o_dev->device;
/* setup request queue */
diff --git a/drivers/mmc/mmc_block.c b/drivers/mmc/mmc_block.c
index 587458b..115cc21 100644
--- a/drivers/mmc/mmc_block.c
+++ b/drivers/mmc/mmc_block.c
@@ -27,7 +27,6 @@
#include <linux/hdreg.h>
#include <linux/kdev_t.h>
#include <linux/blkdev.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/mutex.h>
#include <linux/mmc/card.h>
@@ -409,7 +408,6 @@
*/
sprintf(md->disk->disk_name, "mmcblk%d", devidx);
- sprintf(md->disk->devfs_name, "mmc/blk%d", devidx);
blk_queue_hardsect_size(md->queue.queue, 1 << md->block_bits);
@@ -555,7 +553,6 @@
if (major == 0)
major = res;
- devfs_mk_dir("mmc");
return mmc_register_driver(&mmc_driver);
out:
@@ -565,7 +562,6 @@
static void __exit mmc_blk_exit(void)
{
mmc_unregister_driver(&mmc_driver);
- devfs_remove("mmc");
unregister_blkdev(major, "mmc");
}
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index d643a09..425ff5b 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -28,7 +28,6 @@
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/netdevice.h>
#include <linux/poll.h>
#include <linux/ppp_defs.h>
@@ -863,10 +862,6 @@
goto out_chrdev;
}
class_device_create(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), NULL, "ppp");
- err = devfs_mk_cdev(MKDEV(PPP_MAJOR, 0),
- S_IFCHR|S_IRUSR|S_IWUSR, "ppp");
- if (err)
- goto out_class;
}
out:
@@ -874,9 +869,6 @@
printk(KERN_ERR "failed to register PPP device (%d)\n", err);
return err;
-out_class:
- class_device_destroy(ppp_class, MKDEV(PPP_MAJOR,0));
- class_destroy(ppp_class);
out_chrdev:
unregister_chrdev(PPP_MAJOR, "ppp");
goto out;
@@ -2681,7 +2673,6 @@
cardmap_destroy(&all_ppp_units);
if (unregister_chrdev(PPP_MAJOR, "ppp") != 0)
printk(KERN_ERR "PPP: failed to unregister PPP device\n");
- devfs_remove("ppp");
class_device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0));
class_destroy(ppp_class);
}
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 6c62d5c..732c5ed 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -780,7 +780,6 @@
.minor = TUN_MINOR,
.name = "tun",
.fops = &tun_fops,
- .devfs_name = "net/tun",
};
/* ethtool interface */
diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c
index e392ee8..be5e3381 100644
--- a/drivers/net/wan/cosa.c
+++ b/drivers/net/wan/cosa.c
@@ -85,7 +85,6 @@
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/errno.h>
@@ -393,7 +392,6 @@
err = -ENODEV;
goto out;
}
- devfs_mk_dir("cosa");
cosa_class = class_create(THIS_MODULE, "cosa");
if (IS_ERR(cosa_class)) {
err = PTR_ERR(cosa_class);
@@ -402,13 +400,6 @@
for (i=0; i<nr_cards; i++) {
class_device_create(cosa_class, NULL, MKDEV(cosa_major, i),
NULL, "cosa%d", i);
- err = devfs_mk_cdev(MKDEV(cosa_major, i),
- S_IFCHR|S_IRUSR|S_IWUSR,
- "cosa/%d", i);
- if (err) {
- class_device_destroy(cosa_class, MKDEV(cosa_major, i));
- goto out_chrdev;
- }
}
err = 0;
goto out;
@@ -426,12 +417,9 @@
int i;
printk(KERN_INFO "Unloading the cosa module\n");
- for (i=0; i<nr_cards; i++) {
+ for (i=0; i<nr_cards; i++)
class_device_destroy(cosa_class, MKDEV(cosa_major, i));
- devfs_remove("cosa/%d", i);
- }
class_destroy(cosa_class);
- devfs_remove("cosa");
for (cosa=cosa_cards; nr_cards--; cosa++) {
/* Clean up the per-channel data */
for (i=0; i<cosa->nchannels; i++) {
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index bafcd2f..2dc179b 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1834,7 +1834,6 @@
}
dasd_gendisk_exit();
dasd_devmap_exit();
- devfs_remove("dasd");
if (dasd_debug_area != NULL) {
debug_unregister(dasd_debug_area);
dasd_debug_area = NULL;
@@ -2107,9 +2106,6 @@
dasd_diag_discipline_pointer = NULL;
- rc = devfs_mk_dir("dasd");
- if (rc)
- goto failed;
rc = dasd_devmap_init();
if (rc)
goto failed;
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index fce2835..61ffde7 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -68,8 +68,6 @@
}
len += sprintf(gdp->disk_name + len, "%c", 'a'+(device->devindex%26));
- sprintf(gdp->devfs_name, "dasd/%s", device->cdev->dev.bus_id);
-
if (device->features & DASD_FEATURE_READONLY)
set_disk_ro(gdp, 1);
gdp->private_data = device;
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 03a83ef..3ccf06d 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -54,7 +54,6 @@
#include <linux/module.h>
#include <linux/wait.h>
#include <linux/blkdev.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/genhd.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 54ecd54..4c1e56b 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -36,7 +36,6 @@
#include <linux/hdreg.h> /* HDIO_GETGEO */
#include <linux/sysdev.h>
#include <linux/bio.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#define XPRAM_NAME "xpram"
@@ -439,8 +438,6 @@
if (rc < 0)
goto out;
- devfs_mk_dir("slram");
-
/*
* Assign the other needed values: make request function, sizes and
* hardsect size. All the minor devices feature the same value.
@@ -469,14 +466,12 @@
disk->private_data = &xpram_devices[i];
disk->queue = xpram_queue;
sprintf(disk->disk_name, "slram%d", i);
- sprintf(disk->devfs_name, "slram/%d", i);
set_capacity(disk, xpram_sizes[i] << 1);
add_disk(disk);
}
return 0;
out_unreg:
- devfs_remove("slram");
unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME);
out:
while (i--)
@@ -495,7 +490,6 @@
put_disk(xpram_disks[i]);
}
unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME);
- devfs_remove("slram");
blk_cleanup_queue(xpram_queue);
sysdev_unregister(&xpram_sys_device);
sysdev_class_unregister(&xpram_sysclass);
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index fb7bc9e..a138b15 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -586,7 +586,6 @@
static struct miscdevice mon_dev = {
.name = "monreader",
- .devfs_name = "monreader",
.fops = &mon_fops,
.minor = MISC_DYNAMIC_MINOR,
};
diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c
index 9a14177..7d26a3e 100644
--- a/drivers/s390/char/tty3270.c
+++ b/drivers/s390/char/tty3270.c
@@ -1785,7 +1785,6 @@
* proc_entry, set_termios, flush_buffer, set_ldisc, write_proc
*/
driver->owner = THIS_MODULE;
- driver->devfs_name = "ttyTUB/";
driver->driver_name = "ttyTUB";
driver->name = "ttyTUB";
driver->major = IBM_TTY3270_MAJOR;
@@ -1793,7 +1792,7 @@
driver->type = TTY_DRIVER_TYPE_SYSTEM;
driver->subtype = SYSTEM_TYPE_TTY;
driver->init_termios = tty_std_termios;
- driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_NO_DEVFS;
+ driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(driver, &tty3270_ops);
ret = tty_register_driver(driver);
if (ret) {
diff --git a/drivers/s390/crypto/z90main.c b/drivers/s390/crypto/z90main.c
index 982acc7..b2f20ab 100644
--- a/drivers/s390/crypto/z90main.c
+++ b/drivers/s390/crypto/z90main.c
@@ -411,7 +411,6 @@
.minor = Z90CRYPT_MINOR,
.name = DEV_NAME,
.fops = &z90crypt_fops,
- .devfs_name = DEV_NAME
};
/**
diff --git a/drivers/sbus/char/bpp.c b/drivers/sbus/char/bpp.c
index ccb20a6..385f4f7 100644
--- a/drivers/sbus/char/bpp.c
+++ b/drivers/sbus/char/bpp.c
@@ -20,7 +20,6 @@
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/major.h>
-#include <linux/devfs_fs_kernel.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -1031,11 +1030,6 @@
instances[idx].opened = 0;
probeLptPort(idx);
}
- devfs_mk_dir("bpp");
- for (idx = 0; idx < BPP_NO; idx++) {
- devfs_mk_cdev(MKDEV(BPP_MAJOR, idx),
- S_IFCHR | S_IRUSR | S_IWUSR, "bpp/%d", idx);
- }
return 0;
}
@@ -1044,9 +1038,6 @@
{
unsigned idx;
- for (idx = 0; idx < BPP_NO; idx++)
- devfs_remove("bpp/%d", idx);
- devfs_remove("bpp");
unregister_chrdev(BPP_MAJOR, dev_name);
for (idx = 0; idx < BPP_NO; idx++) {
diff --git a/drivers/sbus/char/vfc.h b/drivers/sbus/char/vfc.h
index 8045cd5..63941a2 100644
--- a/drivers/sbus/char/vfc.h
+++ b/drivers/sbus/char/vfc.h
@@ -1,8 +1,6 @@
#ifndef _LINUX_VFC_H_
#define _LINUX_VFC_H_
-#include <linux/devfs_fs_kernel.h>
-
/*
* The control register for the vfc is at offset 0x4000
* The first field ram bank is located at offset 0x5000
diff --git a/drivers/sbus/char/vfc_dev.c b/drivers/sbus/char/vfc_dev.c
index ddcd330..55b2b31 100644
--- a/drivers/sbus/char/vfc_dev.c
+++ b/drivers/sbus/char/vfc_dev.c
@@ -164,10 +164,6 @@
return -EINVAL;
if (init_vfc_hw(dev))
return -EIO;
-
- devfs_mk_cdev(MKDEV(VFC_MAJOR, instance),
- S_IFCHR | S_IRUSR | S_IWUSR,
- "vfc/%d", instance);
return 0;
}
@@ -677,7 +673,6 @@
kfree(vfc_dev_lst);
return -EIO;
}
- devfs_mk_dir("vfc");
instance = 0;
for_all_sbusdev(sdev, sbus) {
if (strcmp(sdev->prom_name, "vfc") == 0) {
@@ -717,7 +712,6 @@
{
if(dev == NULL)
return;
- devfs_remove("vfc/%d", dev->instance);
sbus_iounmap(dev->regs, sizeof(struct vfc_regs));
kfree(dev);
}
@@ -731,7 +725,6 @@
for (devp = vfc_dev_lst; *devp; devp++)
deinit_vfc_device(*devp);
- devfs_remove("vfc");
kfree(vfc_dev_lst);
return;
}
diff --git a/drivers/serial/21285.c b/drivers/serial/21285.c
index 7572665..9fd0de4 100644
--- a/drivers/serial/21285.c
+++ b/drivers/serial/21285.c
@@ -479,7 +479,6 @@
.owner = THIS_MODULE,
.driver_name = "ttyFB",
.dev_name = "ttyFB",
- .devfs_name = "ttyFB",
.major = SERIAL_21285_MAJOR,
.minor = SERIAL_21285_MINOR,
.nr = 1,
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index bbf78aa..f361b35 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2354,7 +2354,6 @@
static struct uart_driver serial8250_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
diff --git a/drivers/serial/at91_serial.c b/drivers/serial/at91_serial.c
index db5b25f..df9500b 100644
--- a/drivers/serial/at91_serial.c
+++ b/drivers/serial/at91_serial.c
@@ -863,7 +863,6 @@
.owner = THIS_MODULE,
.driver_name = "at91_serial",
.dev_name = AT91_DEVICENAME,
- .devfs_name = AT91_DEVICENAME,
.major = SERIAL_AT91_MAJOR,
.minor = MINOR_START,
.nr = AT91_NR_UART,
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index 5cacc5e..b84137c 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -4878,7 +4878,7 @@
driver->init_termios = tty_std_termios;
driver->init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
- driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
driver->termios = serial_termios;
driver->termios_locked = serial_termios_locked;
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index bf71bad..466d06c 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -768,11 +768,7 @@
static struct uart_driver dz_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
-#ifdef CONFIG_DEVFS
- .dev_name = "tts/%d",
-#else
.dev_name = "ttyS%d",
-#endif
.major = TTY_MAJOR,
.minor = 64,
.nr = DZ_NB_PORT,
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index d202eb4..da85baf 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -888,7 +888,6 @@
.owner = THIS_MODULE,
.driver_name = DRIVER_NAME,
.dev_name = "ttySMX",
- .devfs_name = "ttsmx/",
.major = SERIAL_IMX_MAJOR,
.minor = MINOR_START,
.nr = ARRAY_SIZE(imx_ports),
diff --git a/drivers/serial/ip22zilog.c b/drivers/serial/ip22zilog.c
index 6517724..56b093e 100644
--- a/drivers/serial/ip22zilog.c
+++ b/drivers/serial/ip22zilog.c
@@ -1085,7 +1085,6 @@
static struct uart_driver ip22zilog_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index 321a40f..6a2a25d 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -1131,7 +1131,6 @@
static struct uart_driver m32r_sio_reg = {
.owner = THIS_MODULE,
.driver_name = "sio",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
diff --git a/drivers/serial/mcfserial.c b/drivers/serial/mcfserial.c
index 8ad2429..29c0630 100644
--- a/drivers/serial/mcfserial.c
+++ b/drivers/serial/mcfserial.c
@@ -1713,7 +1713,6 @@
/* Initialize the tty_driver structure */
mcfrs_serial_driver->owner = THIS_MODULE;
mcfrs_serial_driver->name = "ttyS";
- mcfrs_serial_driver->devfs_name = "ttys/";
mcfrs_serial_driver->driver_name = "serial";
mcfrs_serial_driver->major = TTY_MAJOR;
mcfrs_serial_driver->minor_start = 64;
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 6459edc..1aa3484 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -693,7 +693,6 @@
.owner = THIS_MODULE,
.driver_name = "mpc52xx_psc_uart",
.dev_name = "ttyPSC",
- .devfs_name = "ttyPSC",
.major = SERIAL_PSC_MAJOR,
.minor = SERIAL_PSC_MINOR,
.nr = MPC52xx_PSC_MAXNUM,
diff --git a/drivers/serial/mpsc.c b/drivers/serial/mpsc.c
index 9468192..1cd102f 100644
--- a/drivers/serial/mpsc.c
+++ b/drivers/serial/mpsc.c
@@ -315,7 +315,6 @@
#define MPSC_MAJOR 204
#define MPSC_MINOR_START 44
#define MPSC_DRIVER_NAME "MPSC"
-#define MPSC_DEVFS_NAME "ttymm/"
#define MPSC_DEV_NAME "ttyMM"
#define MPSC_VERSION "1.00"
@@ -1863,7 +1862,6 @@
static struct uart_driver mpsc_reg = {
.owner = THIS_MODULE,
.driver_name = MPSC_DRIVER_NAME,
- .devfs_name = MPSC_DEVFS_NAME,
.dev_name = MPSC_DEV_NAME,
.major = MPSC_MAJOR,
.minor = MPSC_MINOR_START,
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index 513ff85..e3ba7e1 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -101,7 +101,6 @@
static struct uart_driver pmz_uart_reg = {
.owner = THIS_MODULE,
.driver_name = "ttyS",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
};
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c
index ae36495..0fa0ccc 100644
--- a/drivers/serial/pxa.c
+++ b/drivers/serial/pxa.c
@@ -780,7 +780,6 @@
static struct uart_driver serial_pxa_reg = {
.owner = THIS_MODULE,
.driver_name = "PXA serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 837b6da..4c62ab94 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -149,7 +149,6 @@
/* UART name and device definitions */
#define S3C24XX_SERIAL_NAME "ttySAC"
-#define S3C24XX_SERIAL_DEVFS "tts/"
#define S3C24XX_SERIAL_MAJOR 204
#define S3C24XX_SERIAL_MINOR 64
@@ -952,7 +951,6 @@
.nr = 3,
.cons = S3C24XX_SERIAL_CONSOLE,
.driver_name = S3C24XX_SERIAL_NAME,
- .devfs_name = S3C24XX_SERIAL_DEVFS,
.major = S3C24XX_SERIAL_MAJOR,
.minor = S3C24XX_SERIAL_MINOR,
};
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index c2d9068..8bbd856 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -816,7 +816,6 @@
.owner = THIS_MODULE,
.driver_name = "ttySA",
.dev_name = "ttySA",
- .devfs_name = "ttySA",
.major = SERIAL_SA1100_MAJOR,
.minor = MINOR_START,
.nr = NR_PORTS,
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index 17839e7..7dc1e67 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2153,7 +2153,6 @@
normal->owner = drv->owner;
normal->driver_name = drv->driver_name;
- normal->devfs_name = drv->devfs_name;
normal->name = drv->dev_name;
normal->major = drv->major;
normal->minor_start = drv->minor;
@@ -2161,7 +2160,7 @@
normal->subtype = SERIAL_TYPE_NORMAL;
normal->init_termios = tty_std_termios;
normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
normal->driver_state = drv;
tty_set_operations(normal, &uart_ops);
@@ -2312,7 +2311,7 @@
mutex_unlock(&state->mutex);
/*
- * Remove the devices from devfs
+ * Remove the devices from the tty layer
*/
tty_unregister_device(drv->tty_driver, port->line);
diff --git a/drivers/serial/serial_txx9.c b/drivers/serial/serial_txx9.c
index 3bdee64..a901a7e 100644
--- a/drivers/serial/serial_txx9.c
+++ b/drivers/serial/serial_txx9.c
@@ -69,12 +69,10 @@
#if !defined(CONFIG_SERIAL_TXX9_STDSERIAL)
/* "ttyS" is used for standard serial driver */
#define TXX9_TTY_NAME "ttyTX"
-#define TXX9_TTY_DEVFS_NAME "tttx/"
#define TXX9_TTY_MINOR_START (64 + 64) /* ttyTX0(128), ttyTX1(129) */
#else
/* acts like standard serial driver */
#define TXX9_TTY_NAME "ttyS"
-#define TXX9_TTY_DEVFS_NAME "tts/"
#define TXX9_TTY_MINOR_START 64
#endif
#define TXX9_TTY_MAJOR TTY_MAJOR
@@ -971,7 +969,6 @@
static struct uart_driver serial_txx9_reg = {
.owner = THIS_MODULE,
.driver_name = "serial_txx9",
- .devfs_name = TXX9_TTY_DEVFS_NAME,
.dev_name = TXX9_TTY_NAME,
.major = TXX9_TTY_MAJOR,
.minor = TXX9_TTY_MINOR_START,
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 44f6bf7..d97f3ca 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -1699,9 +1699,6 @@
static struct uart_driver sci_uart_driver = {
.owner = THIS_MODULE,
.driver_name = "sci",
-#ifdef CONFIG_DEVFS_FS
- .devfs_name = "ttsc/",
-#endif
.dev_name = "ttySC",
.major = SCI_MAJOR,
.minor = SCI_MINOR_START,
diff --git a/drivers/serial/sunhv.c b/drivers/serial/sunhv.c
index ba22e25..d36bc40 100644
--- a/drivers/serial/sunhv.c
+++ b/drivers/serial/sunhv.c
@@ -353,7 +353,6 @@
static struct uart_driver sunhv_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
};
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index e4c0fd2..7da02d1 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -851,7 +851,6 @@
static struct uart_driver sunsab_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
};
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 0268b30..6e28c25 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1265,7 +1265,6 @@
static struct uart_driver sunsu_reg = {
.owner = THIS_MODULE,
.driver_name = "serial",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
};
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 76c9bac..9f42677 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1017,7 +1017,6 @@
static struct uart_driver sunzilog_reg = {
.owner = THIS_MODULE,
.driver_name = "ttyS",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
};
diff --git a/drivers/serial/v850e_uart.c b/drivers/serial/v850e_uart.c
index df705fd..a0da2aa 100644
--- a/drivers/serial/v850e_uart.c
+++ b/drivers/serial/v850e_uart.c
@@ -468,7 +468,6 @@
static struct uart_driver v850e_uart_driver = {
.owner = THIS_MODULE,
.driver_name = "v850e_uart",
- .devfs_name = "tts/",
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = V850E_UART_MINOR_BASE,
diff --git a/drivers/serial/vr41xx_siu.c b/drivers/serial/vr41xx_siu.c
index df5e871..017571f 100644
--- a/drivers/serial/vr41xx_siu.c
+++ b/drivers/serial/vr41xx_siu.c
@@ -911,7 +911,6 @@
.owner = THIS_MODULE,
.driver_name = "SIU",
.dev_name = "ttyVR",
- .devfs_name = "ttvr/",
.major = SIU_MAJOR,
.minor = SIU_MINOR_BASE,
.cons = SERIAL_VR41XX_CONSOLE,
diff --git a/drivers/tc/zs.c b/drivers/tc/zs.c
index 2dffa8e..7f27b35 100644
--- a/drivers/tc/zs.c
+++ b/drivers/tc/zs.c
@@ -1745,7 +1745,6 @@
/* Not all of this is exactly right for us. */
serial_driver->owner = THIS_MODULE;
- serial_driver->devfs_name = "tts/";
serial_driver->name = "ttyS";
serial_driver->major = TTY_MAJOR;
serial_driver->minor_start = 64;
@@ -1754,7 +1753,7 @@
serial_driver->init_termios = tty_std_termios;
serial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
- serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(serial_driver, &serial_ops);
if (tty_register_driver(serial_driver))
diff --git a/drivers/telephony/phonedev.c b/drivers/telephony/phonedev.c
index e166fff..e41f49a 100644
--- a/drivers/telephony/phonedev.c
+++ b/drivers/telephony/phonedev.c
@@ -28,7 +28,6 @@
#include <linux/kmod.h>
#include <linux/sem.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/mutex.h>
#define PHONE_NUM_DEVICES 256
@@ -106,8 +105,6 @@
if (phone_device[i] == NULL) {
phone_device[i] = p;
p->minor = i;
- devfs_mk_cdev(MKDEV(PHONE_MAJOR,i),
- S_IFCHR|S_IRUSR|S_IWUSR, "phone/%d", i);
mutex_unlock(&phone_lock);
return 0;
}
@@ -125,7 +122,6 @@
mutex_lock(&phone_lock);
if (phone_device[pfd->minor] != pfd)
panic("phone: bad unregister");
- devfs_remove("phone/%d", pfd->minor);
phone_device[pfd->minor] = NULL;
mutex_unlock(&phone_lock);
}
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index d41dc67..3670d77 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1145,12 +1145,11 @@
acm_tty_driver->owner = THIS_MODULE,
acm_tty_driver->driver_name = "acm",
acm_tty_driver->name = "ttyACM",
- acm_tty_driver->devfs_name = "usb/acm/",
acm_tty_driver->major = ACM_TTY_MAJOR,
acm_tty_driver->minor_start = 0,
acm_tty_driver->type = TTY_DRIVER_TYPE_SERIAL,
acm_tty_driver->subtype = SERIAL_TYPE_NORMAL,
- acm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS,
+ acm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
acm_tty_driver->init_termios = tty_std_termios;
acm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(acm_tty_driver, &acm_ops);
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 9d6e1d2..416acac8 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -588,12 +588,11 @@
gs_tty_driver->owner = THIS_MODULE;
gs_tty_driver->driver_name = GS_SHORT_NAME;
gs_tty_driver->name = "ttygs";
- gs_tty_driver->devfs_name = "usb/ttygs/";
gs_tty_driver->major = GS_MAJOR;
gs_tty_driver->minor_start = GS_MINOR_START;
gs_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
gs_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ gs_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
gs_tty_driver->init_termios = tty_std_termios;
gs_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(gs_tty_driver, &gs_tty_ops);
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index a30135c..f466f89 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1059,13 +1059,12 @@
usb_serial_tty_driver->owner = THIS_MODULE;
usb_serial_tty_driver->driver_name = "usbserial";
- usb_serial_tty_driver->devfs_name = "usb/tts/";
usb_serial_tty_driver->name = "ttyUSB";
usb_serial_tty_driver->major = SERIAL_TTY_MAJOR;
usb_serial_tty_driver->minor_start = 0;
usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
usb_serial_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ usb_serial_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
usb_serial_tty_driver->init_termios = tty_std_termios;
usb_serial_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(usb_serial_tty_driver, &serial_ops);
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 31143af..a171daa 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -32,7 +32,6 @@
#ifdef CONFIG_KMOD
#include <linux/kmod.h>
#endif
-#include <linux/devfs_fs_kernel.h>
#include <linux/err.h>
#include <linux/device.h>
#include <linux/efi.h>
@@ -1331,8 +1330,6 @@
fb_add_videomode(&mode, &fb_info->modelist);
registered_fb[i] = fb_info;
- devfs_mk_cdev(MKDEV(FB_MAJOR, i),
- S_IFCHR | S_IRUGO | S_IWUGO, "fb/%d", i);
event.info = fb_info;
blocking_notifier_call_chain(&fb_notifier_list,
FB_EVENT_FB_REGISTERED, &event);
@@ -1359,7 +1356,6 @@
i = fb_info->node;
if (!registered_fb[i])
return -EINVAL;
- devfs_remove("fb/%d", i);
if (fb_info->pixmap.addr &&
(fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
@@ -1432,7 +1428,6 @@
{
create_proc_read_entry("fb", 0, NULL, fbmem_read_proc, NULL);
- devfs_mk_dir("fb");
if (register_chrdev(FB_MAJOR,"fb",&fb_fops))
printk("unable to get major %d for fb devs\n", FB_MAJOR);
diff --git a/fs/Makefile b/fs/Makefile
index d0ea6bf..8913542 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -66,7 +66,6 @@
obj-$(CONFIG_VFAT_FS) += vfat/
obj-$(CONFIG_BFS_FS) += bfs/
obj-$(CONFIG_ISO9660_FS) += isofs/
-obj-$(CONFIG_DEVFS_FS) += devfs/
obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
obj-$(CONFIG_HFS_FS) += hfs/
obj-$(CONFIG_VXFS_FS) += freevxfs/
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 7f7600e..909cb05 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -12,7 +12,6 @@
#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/major.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/smp_lock.h>
#include <linux/highmem.h>
#include <linux/blkdev.h>
diff --git a/fs/char_dev.c b/fs/char_dev.c
index f3418f7..9798663 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -14,7 +14,6 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/seq_file.h>
#include <linux/kobject.h>
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 7caee8d..803aacf 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -28,7 +28,6 @@
#include <linux/delay.h>
#include <linux/skbuff.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/file.h>
@@ -365,22 +364,12 @@
err = PTR_ERR(coda_psdev_class);
goto out_chrdev;
}
- devfs_mk_dir ("coda");
- for (i = 0; i < MAX_CODADEVS; i++) {
+ for (i = 0; i < MAX_CODADEVS; i++)
class_device_create(coda_psdev_class, NULL,
MKDEV(CODA_PSDEV_MAJOR,i), NULL, "cfs%d", i);
- err = devfs_mk_cdev(MKDEV(CODA_PSDEV_MAJOR, i),
- S_IFCHR|S_IRUSR|S_IWUSR, "coda/%d", i);
- if (err)
- goto out_class;
- }
coda_sysctl_init();
goto out;
-out_class:
- for (i = 0; i < MAX_CODADEVS; i++)
- class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
- class_destroy(coda_psdev_class);
out_chrdev:
unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
out:
@@ -419,12 +408,9 @@
}
return 0;
out:
- for (i = 0; i < MAX_CODADEVS; i++) {
+ for (i = 0; i < MAX_CODADEVS; i++)
class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
- devfs_remove("coda/%d", i);
- }
class_destroy(coda_psdev_class);
- devfs_remove("coda");
unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
coda_sysctl_clean();
out1:
@@ -441,12 +427,9 @@
if ( err != 0 ) {
printk("coda: failed to unregister filesystem\n");
}
- for (i = 0; i < MAX_CODADEVS; i++) {
+ for (i = 0; i < MAX_CODADEVS; i++)
class_device_destroy(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR, i));
- devfs_remove("coda/%d", i);
- }
class_destroy(coda_psdev_class);
- devfs_remove("coda");
unregister_chrdev(CODA_PSDEV_MAJOR, "coda");
coda_sysctl_clean();
coda_destroy_inodecache();
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index d8ecfed..d8d50a70 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -44,7 +44,6 @@
#include <linux/loop.h>
#include <linux/auto_fs.h>
#include <linux/auto_fs4.h>
-#include <linux/devfs_fs.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
diff --git a/fs/devfs/Makefile b/fs/devfs/Makefile
deleted file mode 100644
index 6dd8d12..0000000
--- a/fs/devfs/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-#
-# Makefile for the linux devfs-filesystem routines.
-#
-
-obj-$(CONFIG_DEVFS_FS) += devfs.o
-
-devfs-objs := base.o util.o
-
diff --git a/fs/devfs/base.c b/fs/devfs/base.c
deleted file mode 100644
index 51a97f1..0000000
--- a/fs/devfs/base.c
+++ /dev/null
@@ -1,2836 +0,0 @@
-/* devfs (Device FileSystem) driver.
-
- Copyright (C) 1998-2002 Richard Gooch
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Richard Gooch may be reached by email at rgooch@atnf.csiro.au
- The postal address is:
- Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
-
- ChangeLog
-
- 19980110 Richard Gooch <rgooch@atnf.csiro.au>
- Original version.
- v0.1
- 19980111 Richard Gooch <rgooch@atnf.csiro.au>
- Created per-fs inode table rather than using inode->u.generic_ip
- v0.2
- 19980111 Richard Gooch <rgooch@atnf.csiro.au>
- Created .epoch inode which has a ctime of 0.
- Fixed loss of named pipes when dentries lost.
- Fixed loss of inode data when devfs_register() follows mknod().
- v0.3
- 19980111 Richard Gooch <rgooch@atnf.csiro.au>
- Fix for when compiling with CONFIG_KERNELD.
- 19980112 Richard Gooch <rgooch@atnf.csiro.au>
- Fix for readdir() which sometimes didn't show entries.
- Added <<tolerant>> option to <devfs_register>.
- v0.4
- 19980113 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_fill_file> function.
- v0.5
- 19980115 Richard Gooch <rgooch@atnf.csiro.au>
- Added subdirectory support. Major restructuring.
- 19980116 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed <find_by_dev> to not search major=0,minor=0.
- Added symlink support.
- v0.6
- 19980120 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_mk_dir> function and support directory unregister
- 19980120 Richard Gooch <rgooch@atnf.csiro.au>
- Auto-ownership uses real uid/gid rather than effective uid/gid.
- v0.7
- 19980121 Richard Gooch <rgooch@atnf.csiro.au>
- Supported creation of sockets.
- v0.8
- 19980122 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_HIDE_UNREG flag.
- Interface change to <devfs_mk_symlink>.
- Created <devfs_symlink> to support symlink(2).
- v0.9
- 19980123 Richard Gooch <rgooch@atnf.csiro.au>
- Added check to <devfs_fill_file> to check inode is in devfs.
- Added optional traversal of symlinks.
- v0.10
- 19980124 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_flags> and <devfs_set_flags>.
- v0.11
- 19980125 C. Scott Ananian <cananian@alumni.princeton.edu>
- Created <devfs_find_handle>.
- 19980125 Richard Gooch <rgooch@atnf.csiro.au>
- Allow removal of symlinks.
- v0.12
- 19980125 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_set_symlink_destination>.
- 19980126 Richard Gooch <rgooch@atnf.csiro.au>
- Moved DEVFS_SUPER_MAGIC into header file.
- Added DEVFS_FL_HIDE flag.
- Created <devfs_get_maj_min>.
- Created <devfs_get_handle_from_inode>.
- Fixed minor bug in <find_by_dev>.
- 19980127 Richard Gooch <rgooch@atnf.csiro.au>
- Changed interface to <find_by_dev>, <find_entry>,
- <devfs_unregister>, <devfs_fill_file> and <devfs_find_handle>.
- Fixed inode times when symlink created with symlink(2).
- v0.13
- 19980129 C. Scott Ananian <cananian@alumni.princeton.edu>
- Exported <devfs_set_symlink_destination>, <devfs_get_maj_min>
- and <devfs_get_handle_from_inode>.
- 19980129 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_unlink> to support unlink(2).
- v0.14
- 19980129 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed kerneld support for entries in devfs subdirectories.
- 19980130 Richard Gooch <rgooch@atnf.csiro.au>
- Bugfixes in <call_kerneld>.
- v0.15
- 19980207 Richard Gooch <rgooch@atnf.csiro.au>
- Call kerneld when looking up unregistered entries.
- v0.16
- 19980326 Richard Gooch <rgooch@atnf.csiro.au>
- Modified interface to <devfs_find_handle> for symlink traversal.
- v0.17
- 19980331 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed persistence bug with device numbers for manually created
- device files.
- Fixed problem with recreating symlinks with different content.
- v0.18
- 19980401 Richard Gooch <rgooch@atnf.csiro.au>
- Changed to CONFIG_KMOD.
- Hide entries which are manually unlinked.
- Always invalidate devfs dentry cache when registering entries.
- Created <devfs_rmdir> to support rmdir(2).
- Ensure directories created by <devfs_mk_dir> are visible.
- v0.19
- 19980402 Richard Gooch <rgooch@atnf.csiro.au>
- Invalidate devfs dentry cache when making directories.
- Invalidate devfs dentry cache when removing entries.
- Fixed persistence bug with fifos.
- v0.20
- 19980421 Richard Gooch <rgooch@atnf.csiro.au>
- Print process command when debugging kerneld/kmod.
- Added debugging for register/unregister/change operations.
- 19980422 Richard Gooch <rgooch@atnf.csiro.au>
- Added "devfs=" boot options.
- v0.21
- 19980426 Richard Gooch <rgooch@atnf.csiro.au>
- No longer lock/unlock superblock in <devfs_put_super>.
- Drop negative dentries when they are released.
- Manage dcache more efficiently.
- v0.22
- 19980427 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_AUTO_DEVNUM flag.
- v0.23
- 19980430 Richard Gooch <rgooch@atnf.csiro.au>
- No longer set unnecessary methods.
- v0.24
- 19980504 Richard Gooch <rgooch@atnf.csiro.au>
- Added PID display to <call_kerneld> debugging message.
- Added "after" debugging message to <call_kerneld>.
- 19980519 Richard Gooch <rgooch@atnf.csiro.au>
- Added "diread" and "diwrite" boot options.
- 19980520 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed persistence problem with permissions.
- v0.25
- 19980602 Richard Gooch <rgooch@atnf.csiro.au>
- Support legacy device nodes.
- Fixed bug where recreated inodes were hidden.
- v0.26
- 19980602 Richard Gooch <rgooch@atnf.csiro.au>
- Improved debugging in <get_vfs_inode>.
- 19980607 Richard Gooch <rgooch@atnf.csiro.au>
- No longer free old dentries in <devfs_mk_dir>.
- Free all dentries for a given entry when deleting inodes.
- v0.27
- 19980627 Richard Gooch <rgooch@atnf.csiro.au>
- Limit auto-device numbering to majors 128 to 239.
- v0.28
- 19980629 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed inode times persistence problem.
- v0.29
- 19980704 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed spelling in <devfs_readlink> debug.
- Fixed bug in <devfs_setup> parsing "dilookup".
- v0.30
- 19980705 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed devfs inode leak when manually recreating inodes.
- Fixed permission persistence problem when recreating inodes.
- v0.31
- 19980727 Richard Gooch <rgooch@atnf.csiro.au>
- Removed harmless "unused variable" compiler warning.
- Fixed modes for manually recreated device nodes.
- v0.32
- 19980728 Richard Gooch <rgooch@atnf.csiro.au>
- Added NULL devfs inode warning in <devfs_read_inode>.
- Force all inode nlink values to 1.
- v0.33
- 19980730 Richard Gooch <rgooch@atnf.csiro.au>
- Added "dimknod" boot option.
- Set inode nlink to 0 when freeing dentries.
- Fixed modes for manually recreated symlinks.
- v0.34
- 19980802 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bugs in recreated directories and symlinks.
- v0.35
- 19980806 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bugs in recreated device nodes.
- 19980807 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in currently unused <devfs_get_handle_from_inode>.
- Defined new <devfs_handle_t> type.
- Improved debugging when getting entries.
- Fixed bug where directories could be emptied.
- v0.36
- 19980809 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced dummy .epoch inode with .devfsd character device.
- 19980810 Richard Gooch <rgooch@atnf.csiro.au>
- Implemented devfsd protocol revision 0.
- v0.37
- 19980819 Richard Gooch <rgooch@atnf.csiro.au>
- Added soothing message to warning in <devfs_d_iput>.
- v0.38
- 19980829 Richard Gooch <rgooch@atnf.csiro.au>
- Use GCC extensions for structure initialisations.
- Implemented async open notification.
- Incremented devfsd protocol revision to 1.
- v0.39
- 19980908 Richard Gooch <rgooch@atnf.csiro.au>
- Moved async open notification to end of <devfs_open>.
- v0.40
- 19980910 Richard Gooch <rgooch@atnf.csiro.au>
- Prepended "/dev/" to module load request.
- Renamed <call_kerneld> to <call_kmod>.
- v0.41
- 19980910 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed typo "AYSNC" -> "ASYNC".
- v0.42
- 19980910 Richard Gooch <rgooch@atnf.csiro.au>
- Added open flag for files.
- v0.43
- 19980927 Richard Gooch <rgooch@atnf.csiro.au>
- Set i_blocks=0 and i_blksize=1024 in <devfs_read_inode>.
- v0.44
- 19981005 Richard Gooch <rgooch@atnf.csiro.au>
- Added test for empty <<name>> in <devfs_find_handle>.
- Renamed <generate_path> to <devfs_generate_path> and published.
- v0.45
- 19981006 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_fops>.
- v0.46
- 19981007 Richard Gooch <rgooch@atnf.csiro.au>
- Limit auto-device numbering to majors 144 to 239.
- v0.47
- 19981010 Richard Gooch <rgooch@atnf.csiro.au>
- Updated <devfs_follow_link> for VFS change in 2.1.125.
- v0.48
- 19981022 Richard Gooch <rgooch@atnf.csiro.au>
- Created DEVFS_ FL_COMPAT flag.
- v0.49
- 19981023 Richard Gooch <rgooch@atnf.csiro.au>
- Created "nocompat" boot option.
- v0.50
- 19981025 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced "mount" boot option with "nomount".
- v0.51
- 19981110 Richard Gooch <rgooch@atnf.csiro.au>
- Created "only" boot option.
- v0.52
- 19981112 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_REMOVABLE flag.
- v0.53
- 19981114 Richard Gooch <rgooch@atnf.csiro.au>
- Only call <scan_dir_for_removable> on first call to
- <devfs_readdir>.
- v0.54
- 19981205 Richard Gooch <rgooch@atnf.csiro.au>
- Updated <devfs_rmdir> for VFS change in 2.1.131.
- v0.55
- 19981218 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_mk_compat>.
- 19981220 Richard Gooch <rgooch@atnf.csiro.au>
- Check for partitions on removable media in <devfs_lookup>.
- v0.56
- 19990118 Richard Gooch <rgooch@atnf.csiro.au>
- Added support for registering regular files.
- Created <devfs_set_file_size>.
- Update devfs inodes from entries if not changed through FS.
- v0.57
- 19990124 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed <devfs_fill_file> to only initialise temporary inodes.
- Trap for NULL fops in <devfs_register>.
- Return -ENODEV in <devfs_fill_file> for non-driver inodes.
- v0.58
- 19990126 Richard Gooch <rgooch@atnf.csiro.au>
- Switched from PATH_MAX to DEVFS_PATHLEN.
- v0.59
- 19990127 Richard Gooch <rgooch@atnf.csiro.au>
- Created "nottycompat" boot option.
- v0.60
- 19990318 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed <devfsd_read> to not overrun event buffer.
- v0.61
- 19990329 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_auto_unregister>.
- v0.62
- 19990330 Richard Gooch <rgooch@atnf.csiro.au>
- Don't return unregistred entries in <devfs_find_handle>.
- Panic in <devfs_unregister> if entry unregistered.
- 19990401 Richard Gooch <rgooch@atnf.csiro.au>
- Don't panic in <devfs_auto_unregister> for duplicates.
- v0.63
- 19990402 Richard Gooch <rgooch@atnf.csiro.au>
- Don't unregister already unregistered entries in <unregister>.
- v0.64
- 19990510 Richard Gooch <rgooch@atnf.csiro.au>
- Disable warning messages when unable to read partition table for
- removable media.
- v0.65
- 19990512 Richard Gooch <rgooch@atnf.csiro.au>
- Updated <devfs_lookup> for VFS change in 2.3.1-pre1.
- Created "oops-on-panic" boot option.
- Improved debugging in <devfs_register> and <devfs_unregister>.
- v0.66
- 19990519 Richard Gooch <rgooch@atnf.csiro.au>
- Added documentation for some functions.
- 19990525 Richard Gooch <rgooch@atnf.csiro.au>
- Removed "oops-on-panic" boot option: now always Oops.
- v0.67
- 19990531 Richard Gooch <rgooch@atnf.csiro.au>
- Improved debugging in <devfs_register>.
- v0.68
- 19990604 Richard Gooch <rgooch@atnf.csiro.au>
- Added "diunlink" and "nokmod" boot options.
- Removed superfluous warning message in <devfs_d_iput>.
- v0.69
- 19990611 Richard Gooch <rgooch@atnf.csiro.au>
- Took account of change to <d_alloc_root>.
- v0.70
- 19990614 Richard Gooch <rgooch@atnf.csiro.au>
- Created separate event queue for each mounted devfs.
- Removed <devfs_invalidate_dcache>.
- Created new ioctl()s.
- Incremented devfsd protocol revision to 3.
- Fixed bug when re-creating directories: contents were lost.
- Block access to inodes until devfsd updates permissions.
- 19990615 Richard Gooch <rgooch@atnf.csiro.au>
- Support 2.2.x kernels.
- v0.71
- 19990623 Richard Gooch <rgooch@atnf.csiro.au>
- Switched to sending process uid/gid to devfsd.
- Renamed <call_kmod> to <try_modload>.
- Added DEVFSD_NOTIFY_LOOKUP event.
- 19990624 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFSD_NOTIFY_CHANGE event.
- Incremented devfsd protocol revision to 4.
- v0.72
- 19990713 Richard Gooch <rgooch@atnf.csiro.au>
- Return EISDIR rather than EINVAL for read(2) on directories.
- v0.73
- 19990809 Richard Gooch <rgooch@atnf.csiro.au>
- Changed <devfs_setup> to new __init scheme.
- v0.74
- 19990901 Richard Gooch <rgooch@atnf.csiro.au>
- Changed remaining function declarations to new __init scheme.
- v0.75
- 19991013 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_info>, <devfs_set_info>,
- <devfs_get_first_child> and <devfs_get_next_sibling>.
- Added <<dir>> parameter to <devfs_register>, <devfs_mk_compat>,
- <devfs_mk_dir> and <devfs_find_handle>.
- Work sponsored by SGI.
- v0.76
- 19991017 Richard Gooch <rgooch@atnf.csiro.au>
- Allow multiple unregistrations.
- Work sponsored by SGI.
- v0.77
- 19991026 Richard Gooch <rgooch@atnf.csiro.au>
- Added major and minor number to devfsd protocol.
- Incremented devfsd protocol revision to 5.
- Work sponsored by SGI.
- v0.78
- 19991030 Richard Gooch <rgooch@atnf.csiro.au>
- Support info pointer for all devfs entry types.
- Added <<info>> parameter to <devfs_mk_dir> and
- <devfs_mk_symlink>.
- Work sponsored by SGI.
- v0.79
- 19991031 Richard Gooch <rgooch@atnf.csiro.au>
- Support "../" when searching devfs namespace.
- Work sponsored by SGI.
- v0.80
- 19991101 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_unregister_slave>.
- Work sponsored by SGI.
- v0.81
- 19991103 Richard Gooch <rgooch@atnf.csiro.au>
- Exported <devfs_get_parent>.
- Work sponsored by SGI.
- v0.82
- 19991104 Richard Gooch <rgooch@atnf.csiro.au>
- Removed unused <devfs_set_symlink_destination>.
- 19991105 Richard Gooch <rgooch@atnf.csiro.au>
- Do not hide entries from devfsd or children.
- Removed DEVFS_ FL_TTY_COMPAT flag.
- Removed "nottycompat" boot option.
- Removed <devfs_mk_compat>.
- Work sponsored by SGI.
- v0.83
- 19991107 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_FL_WAIT flag.
- Work sponsored by SGI.
- v0.84
- 19991107 Richard Gooch <rgooch@atnf.csiro.au>
- Support new "disc" naming scheme in <get_removable_partition>.
- Allow NULL fops in <devfs_register>.
- Work sponsored by SGI.
- v0.85
- 19991110 Richard Gooch <rgooch@atnf.csiro.au>
- Fall back to major table if NULL fops given to <devfs_register>.
- Work sponsored by SGI.
- v0.86
- 19991204 Richard Gooch <rgooch@atnf.csiro.au>
- Support fifos when unregistering.
- Work sponsored by SGI.
- v0.87
- 19991209 Richard Gooch <rgooch@atnf.csiro.au>
- Removed obsolete DEVFS_ FL_COMPAT and DEVFS_ FL_TOLERANT flags.
- Work sponsored by SGI.
- v0.88
- 19991214 Richard Gooch <rgooch@atnf.csiro.au>
- Removed kmod support.
- Work sponsored by SGI.
- v0.89
- 19991216 Richard Gooch <rgooch@atnf.csiro.au>
- Improved debugging in <get_vfs_inode>.
- Ensure dentries created by devfsd will be cleaned up.
- Work sponsored by SGI.
- v0.90
- 19991223 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_name>.
- Work sponsored by SGI.
- v0.91
- 20000203 Richard Gooch <rgooch@atnf.csiro.au>
- Ported to kernel 2.3.42.
- Removed <devfs_fill_file>.
- Work sponsored by SGI.
- v0.92
- 20000306 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFS_ FL_NO_PERSISTENCE flag.
- Removed unnecessary call to <update_devfs_inode_from_entry> in
- <devfs_readdir>.
- Work sponsored by SGI.
- v0.93
- 20000413 Richard Gooch <rgooch@atnf.csiro.au>
- Set inode->i_size to correct size for symlinks.
- 20000414 Richard Gooch <rgooch@atnf.csiro.au>
- Only give lookup() method to directories to comply with new VFS
- assumptions.
- Work sponsored by SGI.
- 20000415 Richard Gooch <rgooch@atnf.csiro.au>
- Remove unnecessary tests in symlink methods.
- Don't kill existing block ops in <devfs_read_inode>.
- Work sponsored by SGI.
- v0.94
- 20000424 Richard Gooch <rgooch@atnf.csiro.au>
- Don't create missing directories in <devfs_find_handle>.
- Work sponsored by SGI.
- v0.95
- 20000430 Richard Gooch <rgooch@atnf.csiro.au>
- Added CONFIG_DEVFS_MOUNT.
- Work sponsored by SGI.
- v0.96
- 20000608 Richard Gooch <rgooch@atnf.csiro.au>
- Disabled multi-mount capability (use VFS bindings instead).
- Work sponsored by SGI.
- v0.97
- 20000610 Richard Gooch <rgooch@atnf.csiro.au>
- Switched to FS_SINGLE to disable multi-mounts.
- 20000612 Richard Gooch <rgooch@atnf.csiro.au>
- Removed module support.
- Removed multi-mount code.
- Removed compatibility macros: VFS has changed too much.
- Work sponsored by SGI.
- v0.98
- 20000614 Richard Gooch <rgooch@atnf.csiro.au>
- Merged devfs inode into devfs entry.
- Work sponsored by SGI.
- v0.99
- 20000619 Richard Gooch <rgooch@atnf.csiro.au>
- Removed dead code in <devfs_register> which used to call
- <free_dentries>.
- Work sponsored by SGI.
- v0.100
- 20000621 Richard Gooch <rgooch@atnf.csiro.au>
- Changed interface to <devfs_register>.
- Work sponsored by SGI.
- v0.101
- 20000622 Richard Gooch <rgooch@atnf.csiro.au>
- Simplified interface to <devfs_mk_symlink> and <devfs_mk_dir>.
- Simplified interface to <devfs_find_handle>.
- Work sponsored by SGI.
- v0.102
- 20010519 Richard Gooch <rgooch@atnf.csiro.au>
- Ensure <devfs_generate_path> terminates string for root entry.
- Exported <devfs_get_name> to modules.
- 20010520 Richard Gooch <rgooch@atnf.csiro.au>
- Make <devfs_mk_symlink> send events to devfsd.
- Cleaned up option processing in <devfs_setup>.
- 20010521 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bugs in handling symlinks: could leak or cause Oops.
- 20010522 Richard Gooch <rgooch@atnf.csiro.au>
- Cleaned up directory handling by separating fops.
- v0.103
- 20010601 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed handling of inverted options in <devfs_setup>.
- v0.104
- 20010604 Richard Gooch <rgooch@atnf.csiro.au>
- Adjusted <try_modload> to account for <devfs_generate_path> fix.
- v0.105
- 20010617 Richard Gooch <rgooch@atnf.csiro.au>
- Answered question posed by Al Viro and removed his comments.
- Moved setting of registered flag after other fields are changed.
- Fixed race between <devfsd_close> and <devfsd_notify_one>.
- Global VFS changes added bogus BKL to <devfsd_close>: removed.
- Widened locking in <devfs_readlink> and <devfs_follow_link>.
- Replaced <devfsd_read> stack usage with <devfsd_ioctl> kmalloc.
- Simplified locking in <devfsd_ioctl> and fixed memory leak.
- v0.106
- 20010709 Richard Gooch <rgooch@atnf.csiro.au>
- Removed broken devnum allocation and use <devfs_alloc_devnum>.
- Fixed old devnum leak by calling new <devfs_dealloc_devnum>.
- v0.107
- 20010712 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfs_setup> which could hang boot process.
- v0.108
- 20010730 Richard Gooch <rgooch@atnf.csiro.au>
- Added DEVFSD_NOTIFY_DELETE event.
- 20010801 Richard Gooch <rgooch@atnf.csiro.au>
- Removed #include <asm/segment.h>.
- v0.109
- 20010807 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed inode table races by removing it and using
- inode->u.generic_ip instead.
- Moved <devfs_read_inode> into <get_vfs_inode>.
- Moved <devfs_write_inode> into <devfs_notify_change>.
- v0.110
- 20010808 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed race in <devfs_do_symlink> for uni-processor.
- v0.111
- 20010818 Richard Gooch <rgooch@atnf.csiro.au>
- Removed remnant of multi-mount support in <devfs_mknod>.
- Removed unused DEVFS_FL_SHOW_UNREG flag.
- v0.112
- 20010820 Richard Gooch <rgooch@atnf.csiro.au>
- Removed nlink field from struct devfs_inode.
- v0.113
- 20010823 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced BKL with global rwsem to protect symlink data (quick
- and dirty hack).
- v0.114
- 20010827 Richard Gooch <rgooch@atnf.csiro.au>
- Replaced global rwsem for symlink with per-link refcount.
- v0.115
- 20010919 Richard Gooch <rgooch@atnf.csiro.au>
- Set inode->i_mapping->a_ops for block nodes in <get_vfs_inode>.
- v0.116
- 20011008 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed overrun in <devfs_link> by removing function (not needed).
- 20011009 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed buffer underrun in <try_modload>.
- 20011029 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed race in <devfsd_ioctl> when setting event mask.
- 20011114 Richard Gooch <rgooch@atnf.csiro.au>
- First release of new locking code.
- v1.0
- 20011117 Richard Gooch <rgooch@atnf.csiro.au>
- Discard temporary buffer, now use "%s" for dentry names.
- 20011118 Richard Gooch <rgooch@atnf.csiro.au>
- Don't generate path in <try_modload>: use fake entry instead.
- Use "existing" directory in <_devfs_make_parent_for_leaf>.
- 20011122 Richard Gooch <rgooch@atnf.csiro.au>
- Use slab cache rather than fixed buffer for devfsd events.
- v1.1
- 20011125 Richard Gooch <rgooch@atnf.csiro.au>
- Send DEVFSD_NOTIFY_REGISTERED events in <devfs_mk_dir>.
- 20011127 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed locking bug in <devfs_d_revalidate_wait> due to typo.
- Do not send CREATE, CHANGE, ASYNC_OPEN or DELETE events from
- devfsd or children.
- v1.2
- 20011202 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfsd_read>: was dereferencing freed pointer.
- v1.3
- 20011203 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfsd_close>: was dereferencing freed pointer.
- Added process group check for devfsd privileges.
- v1.4
- 20011204 Richard Gooch <rgooch@atnf.csiro.au>
- Use SLAB_ATOMIC in <devfsd_notify_de> from <devfs_d_delete>.
- v1.5
- 20011211 Richard Gooch <rgooch@atnf.csiro.au>
- Return old entry in <devfs_mk_dir> for 2.4.x kernels.
- 20011212 Richard Gooch <rgooch@atnf.csiro.au>
- Increment refcount on module in <check_disc_changed>.
- 20011215 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_get_handle> and exported <devfs_put>.
- Increment refcount on module in <devfs_get_ops>.
- Created <devfs_put_ops>.
- v1.6
- 20011216 Richard Gooch <rgooch@atnf.csiro.au>
- Added poisoning to <devfs_put>.
- Improved debugging messages.
- v1.7
- 20011221 Richard Gooch <rgooch@atnf.csiro.au>
- Corrected (made useful) debugging message in <unregister>.
- Moved <kmem_cache_create> in <mount_devfs_fs> to <init_devfs_fs>
- 20011224 Richard Gooch <rgooch@atnf.csiro.au>
- Added magic number to guard against scribbling drivers.
- 20011226 Richard Gooch <rgooch@atnf.csiro.au>
- Only return old entry in <devfs_mk_dir> if a directory.
- Defined macros for error and debug messages.
- v1.8
- 20020113 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed (rare, old) race in <devfs_lookup>.
- v1.9
- 20020120 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed deadlock bug in <devfs_d_revalidate_wait>.
- Tag VFS deletable in <devfs_mk_symlink> if handle ignored.
- v1.10
- 20020129 Richard Gooch <rgooch@atnf.csiro.au>
- Added KERN_* to remaining messages.
- Cleaned up declaration of <stat_read>.
- v1.11
- 20020219 Richard Gooch <rgooch@atnf.csiro.au>
- Changed <devfs_rmdir> to allow later additions if not yet empty.
- v1.12
- 20020406 Richard Gooch <rgooch@atnf.csiro.au>
- Removed silently introduced calls to lock_kernel() and
- unlock_kernel() due to recent VFS locking changes. BKL isn't
- required in devfs.
- v1.13
- 20020428 Richard Gooch <rgooch@atnf.csiro.au>
- Removed 2.4.x compatibility code.
- v1.14
- 20020510 Richard Gooch <rgooch@atnf.csiro.au>
- Added BKL to <devfs_open> because drivers still need it.
- v1.15
- 20020512 Richard Gooch <rgooch@atnf.csiro.au>
- Protected <scan_dir_for_removable> and <get_removable_partition>
- from changing directory contents.
- v1.16
- 20020514 Richard Gooch <rgooch@atnf.csiro.au>
- Minor cleanup of <scan_dir_for_removable>.
- v1.17
- 20020721 Richard Gooch <rgooch@atnf.csiro.au>
- Switched to ISO C structure field initialisers.
- Switch to set_current_state() and move before add_wait_queue().
- 20020722 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed devfs entry leak in <devfs_readdir> when *readdir fails.
- v1.18
- 20020725 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_find_and_unregister>.
- v1.19
- 20020728 Richard Gooch <rgooch@atnf.csiro.au>
- Removed deprecated <devfs_find_handle>.
- v1.20
- 20020820 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed module unload race in <devfs_open>.
- v1.21
- 20021013 Richard Gooch <rgooch@atnf.csiro.au>
- Removed DEVFS_ FL_AUTO_OWNER.
- Switched lingering structure field initialiser to ISO C.
- Added locking when updating FCB flags.
- v1.22
-*/
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/time.h>
-#include <linux/tty.h>
-#include <linux/timer.h>
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/wait.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/ctype.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/devfs_fs.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/smp_lock.h>
-#include <linux/smp.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/namei.h>
-#include <linux/bitops.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/pgtable.h>
-#include <asm/atomic.h>
-
-#define DEVFS_VERSION "2004-01-31"
-
-#define DEVFS_NAME "devfs"
-
-#define FIRST_INODE 1
-
-#define STRING_LENGTH 256
-#define FAKE_BLOCK_SIZE 1024
-#define POISON_PTR ( *(void **) poison_array )
-#define MAGIC_VALUE 0x327db823
-
-#ifndef TRUE
-# define TRUE 1
-# define FALSE 0
-#endif
-
-#define MODE_DIR (S_IFDIR | S_IWUSR | S_IRUGO | S_IXUGO)
-
-#define DEBUG_NONE 0x0000000
-#define DEBUG_MODULE_LOAD 0x0000001
-#define DEBUG_REGISTER 0x0000002
-#define DEBUG_UNREGISTER 0x0000004
-#define DEBUG_FREE 0x0000008
-#define DEBUG_SET_FLAGS 0x0000010
-#define DEBUG_S_READ 0x0000100 /* Break */
-#define DEBUG_I_LOOKUP 0x0001000 /* Break */
-#define DEBUG_I_CREATE 0x0002000
-#define DEBUG_I_GET 0x0004000
-#define DEBUG_I_CHANGE 0x0008000
-#define DEBUG_I_UNLINK 0x0010000
-#define DEBUG_I_RLINK 0x0020000
-#define DEBUG_I_FLINK 0x0040000
-#define DEBUG_I_MKNOD 0x0080000
-#define DEBUG_F_READDIR 0x0100000 /* Break */
-#define DEBUG_D_DELETE 0x1000000 /* Break */
-#define DEBUG_D_RELEASE 0x2000000
-#define DEBUG_D_IPUT 0x4000000
-#define DEBUG_ALL 0xfffffff
-#define DEBUG_DISABLED DEBUG_NONE
-
-#define OPTION_NONE 0x00
-#define OPTION_MOUNT 0x01
-
-#define PRINTK(format, args...) \
- {printk (KERN_ERR "%s" format, __FUNCTION__ , ## args);}
-
-#define OOPS(format, args...) \
- {printk (KERN_CRIT "%s" format, __FUNCTION__ , ## args); \
- printk ("Forcing Oops\n"); \
- BUG();}
-
-#ifdef CONFIG_DEVFS_DEBUG
-# define VERIFY_ENTRY(de) \
- {if ((de) && (de)->magic_number != MAGIC_VALUE) \
- OOPS ("(%p): bad magic value: %x\n", (de), (de)->magic_number);}
-# define WRITE_ENTRY_MAGIC(de,magic) (de)->magic_number = (magic)
-# define DPRINTK(flag, format, args...) \
- {if (devfs_debug & flag) \
- printk (KERN_INFO "%s" format, __FUNCTION__ , ## args);}
-#else
-# define VERIFY_ENTRY(de)
-# define WRITE_ENTRY_MAGIC(de,magic)
-# define DPRINTK(flag, format, args...)
-#endif
-
-typedef struct devfs_entry *devfs_handle_t;
-
-struct directory_type {
- rwlock_t lock; /* Lock for searching(R)/updating(W) */
- struct devfs_entry *first;
- struct devfs_entry *last;
- unsigned char no_more_additions:1;
-};
-
-struct symlink_type {
- unsigned int length; /* Not including the NULL-termimator */
- char *linkname; /* This is NULL-terminated */
-};
-
-struct devfs_inode { /* This structure is for "persistent" inode storage */
- struct dentry *dentry;
- struct timespec atime;
- struct timespec mtime;
- struct timespec ctime;
- unsigned int ino; /* Inode number as seen in the VFS */
- uid_t uid;
- gid_t gid;
-};
-
-struct devfs_entry {
-#ifdef CONFIG_DEVFS_DEBUG
- unsigned int magic_number;
-#endif
- void *info;
- atomic_t refcount; /* When this drops to zero, it's unused */
- union {
- struct directory_type dir;
- dev_t dev;
- struct symlink_type symlink;
- const char *name; /* Only used for (mode == 0) */
- } u;
- struct devfs_entry *prev; /* Previous entry in the parent directory */
- struct devfs_entry *next; /* Next entry in the parent directory */
- struct devfs_entry *parent; /* The parent directory */
- struct devfs_inode inode;
- umode_t mode;
- unsigned short namelen; /* I think 64k+ filenames are a way off... */
- unsigned char vfs:1; /* Whether the VFS may delete the entry */
- char name[1]; /* This is just a dummy: the allocated array
- is bigger. This is NULL-terminated */
-};
-
-/* The root of the device tree */
-static struct devfs_entry *root_entry;
-
-struct devfsd_buf_entry {
- struct devfs_entry *de; /* The name is generated with this */
- unsigned short type; /* The type of event */
- umode_t mode;
- uid_t uid;
- gid_t gid;
- struct devfsd_buf_entry *next;
-};
-
-struct fs_info { /* This structure is for the mounted devfs */
- struct super_block *sb;
- spinlock_t devfsd_buffer_lock; /* Lock when inserting/deleting events */
- struct devfsd_buf_entry *devfsd_first_event;
- struct devfsd_buf_entry *devfsd_last_event;
- volatile int devfsd_sleeping;
- volatile struct task_struct *devfsd_task;
- volatile pid_t devfsd_pgrp;
- volatile struct file *devfsd_file;
- struct devfsd_notify_struct *devfsd_info;
- volatile unsigned long devfsd_event_mask;
- atomic_t devfsd_overrun_count;
- wait_queue_head_t devfsd_wait_queue; /* Wake devfsd on input */
- wait_queue_head_t revalidate_wait_queue; /* Wake when devfsd sleeps */
-};
-
-static struct fs_info fs_info = {.devfsd_buffer_lock = SPIN_LOCK_UNLOCKED };
-static kmem_cache_t *devfsd_buf_cache;
-#ifdef CONFIG_DEVFS_DEBUG
-static unsigned int devfs_debug_init __initdata = DEBUG_NONE;
-static unsigned int devfs_debug = DEBUG_NONE;
-static DEFINE_SPINLOCK(stat_lock);
-static unsigned int stat_num_entries;
-static unsigned int stat_num_bytes;
-#endif
-static unsigned char poison_array[8] =
- { 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a };
-
-#ifdef CONFIG_DEVFS_MOUNT
-static unsigned int boot_options = OPTION_MOUNT;
-#else
-static unsigned int boot_options = OPTION_NONE;
-#endif
-
-/* Forward function declarations */
-static devfs_handle_t _devfs_walk_path(struct devfs_entry *dir,
- const char *name, int namelen,
- int traverse_symlink);
-static ssize_t devfsd_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos);
-static int devfsd_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg);
-static int devfsd_close(struct inode *inode, struct file *file);
-#ifdef CONFIG_DEVFS_DEBUG
-static ssize_t stat_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos);
-static const struct file_operations stat_fops = {
- .open = nonseekable_open,
- .read = stat_read,
-};
-#endif
-
-/* Devfs daemon file operations */
-static const struct file_operations devfsd_fops = {
- .open = nonseekable_open,
- .read = devfsd_read,
- .ioctl = devfsd_ioctl,
- .release = devfsd_close,
-};
-
-/* Support functions follow */
-
-/**
- * devfs_get - Get a reference to a devfs entry.
- * @de: The devfs entry.
- */
-
-static struct devfs_entry *devfs_get(struct devfs_entry *de)
-{
- VERIFY_ENTRY(de);
- if (de)
- atomic_inc(&de->refcount);
- return de;
-} /* End Function devfs_get */
-
-/**
- * devfs_put - Put (release) a reference to a devfs entry.
- * @de: The handle to the devfs entry.
- */
-
-static void devfs_put(devfs_handle_t de)
-{
- if (!de)
- return;
- VERIFY_ENTRY(de);
- if (de->info == POISON_PTR)
- OOPS("(%p): poisoned pointer\n", de);
- if (!atomic_dec_and_test(&de->refcount))
- return;
- if (de == root_entry)
- OOPS("(%p): root entry being freed\n", de);
- DPRINTK(DEBUG_FREE, "(%s): de: %p, parent: %p \"%s\"\n",
- de->name, de, de->parent,
- de->parent ? de->parent->name : "no parent");
- if (S_ISLNK(de->mode))
- kfree(de->u.symlink.linkname);
- WRITE_ENTRY_MAGIC(de, 0);
-#ifdef CONFIG_DEVFS_DEBUG
- spin_lock(&stat_lock);
- --stat_num_entries;
- stat_num_bytes -= sizeof *de + de->namelen;
- if (S_ISLNK(de->mode))
- stat_num_bytes -= de->u.symlink.length + 1;
- spin_unlock(&stat_lock);
-#endif
- de->info = POISON_PTR;
- kfree(de);
-} /* End Function devfs_put */
-
-/**
- * _devfs_search_dir - Search for a devfs entry in a directory.
- * @dir: The directory to search.
- * @name: The name of the entry to search for.
- * @namelen: The number of characters in @name.
- *
- * Search for a devfs entry in a directory and returns a pointer to the entry
- * on success, else %NULL. The directory must be locked already.
- * An implicit devfs_get() is performed on the returned entry.
- */
-
-static struct devfs_entry *_devfs_search_dir(struct devfs_entry *dir,
- const char *name,
- unsigned int namelen)
-{
- struct devfs_entry *curr;
-
- if (!S_ISDIR(dir->mode)) {
- PRINTK("(%s): not a directory\n", dir->name);
- return NULL;
- }
- for (curr = dir->u.dir.first; curr != NULL; curr = curr->next) {
- if (curr->namelen != namelen)
- continue;
- if (memcmp(curr->name, name, namelen) == 0)
- break;
- /* Not found: try the next one */
- }
- return devfs_get(curr);
-} /* End Function _devfs_search_dir */
-
-/**
- * _devfs_alloc_entry - Allocate a devfs entry.
- * @name: the name of the entry
- * @namelen: the number of characters in @name
- * @mode: the mode for the entry
- *
- * Allocate a devfs entry and returns a pointer to the entry on success, else
- * %NULL.
- */
-
-static struct devfs_entry *_devfs_alloc_entry(const char *name,
- unsigned int namelen,
- umode_t mode)
-{
- struct devfs_entry *new;
- static unsigned long inode_counter = FIRST_INODE;
- static DEFINE_SPINLOCK(counter_lock);
-
- if (name && (namelen < 1))
- namelen = strlen(name);
- if ((new = kmalloc(sizeof *new + namelen, GFP_KERNEL)) == NULL)
- return NULL;
- memset(new, 0, sizeof *new + namelen); /* Will set '\0' on name */
- new->mode = mode;
- if (S_ISDIR(mode))
- rwlock_init(&new->u.dir.lock);
- atomic_set(&new->refcount, 1);
- spin_lock(&counter_lock);
- new->inode.ino = inode_counter++;
- spin_unlock(&counter_lock);
- if (name)
- memcpy(new->name, name, namelen);
- new->namelen = namelen;
- WRITE_ENTRY_MAGIC(new, MAGIC_VALUE);
-#ifdef CONFIG_DEVFS_DEBUG
- spin_lock(&stat_lock);
- ++stat_num_entries;
- stat_num_bytes += sizeof *new + namelen;
- spin_unlock(&stat_lock);
-#endif
- return new;
-} /* End Function _devfs_alloc_entry */
-
-/**
- * _devfs_append_entry - Append a devfs entry to a directory's child list.
- * @dir: The directory to add to.
- * @de: The devfs entry to append.
- * @old_de: If an existing entry exists, it will be written here. This may
- * be %NULL. An implicit devfs_get() is performed on this entry.
- *
- * Append a devfs entry to a directory's list of children, checking first to
- * see if an entry of the same name exists. The directory will be locked.
- * The value 0 is returned on success, else a negative error code.
- * On failure, an implicit devfs_put() is performed on %de.
- */
-
-static int _devfs_append_entry(devfs_handle_t dir, devfs_handle_t de,
- devfs_handle_t * old_de)
-{
- int retval;
-
- if (old_de)
- *old_de = NULL;
- if (!S_ISDIR(dir->mode)) {
- PRINTK("(%s): dir: \"%s\" is not a directory\n", de->name,
- dir->name);
- devfs_put(de);
- return -ENOTDIR;
- }
- write_lock(&dir->u.dir.lock);
- if (dir->u.dir.no_more_additions)
- retval = -ENOENT;
- else {
- struct devfs_entry *old;
-
- old = _devfs_search_dir(dir, de->name, de->namelen);
- if (old_de)
- *old_de = old;
- else
- devfs_put(old);
- if (old == NULL) {
- de->parent = dir;
- de->prev = dir->u.dir.last;
- /* Append to the directory's list of children */
- if (dir->u.dir.first == NULL)
- dir->u.dir.first = de;
- else
- dir->u.dir.last->next = de;
- dir->u.dir.last = de;
- retval = 0;
- } else
- retval = -EEXIST;
- }
- write_unlock(&dir->u.dir.lock);
- if (retval)
- devfs_put(de);
- return retval;
-} /* End Function _devfs_append_entry */
-
-/**
- * _devfs_get_root_entry - Get the root devfs entry.
- *
- * Returns the root devfs entry on success, else %NULL.
- *
- * TODO it must be called asynchronously due to the fact
- * that devfs is initialized relatively late. Proper way
- * is to remove module_init from init_devfs_fs and manually
- * call it early enough during system init
- */
-
-static struct devfs_entry *_devfs_get_root_entry(void)
-{
- struct devfs_entry *new;
- static DEFINE_SPINLOCK(root_lock);
-
- if (root_entry)
- return root_entry;
-
- new = _devfs_alloc_entry(NULL, 0, MODE_DIR);
- if (new == NULL)
- return NULL;
-
- spin_lock(&root_lock);
- if (root_entry) {
- spin_unlock(&root_lock);
- devfs_put(new);
- return root_entry;
- }
- root_entry = new;
- spin_unlock(&root_lock);
-
- return root_entry;
-} /* End Function _devfs_get_root_entry */
-
-/**
- * _devfs_descend - Descend down a tree using the next component name.
- * @dir: The directory to search.
- * @name: The component name to search for.
- * @namelen: The length of %name.
- * @next_pos: The position of the next '/' or '\0' is written here.
- *
- * Descend into a directory, searching for a component. This function forms
- * the core of a tree-walking algorithm. The directory will be locked.
- * The devfs entry corresponding to the component is returned. If there is
- * no matching entry, %NULL is returned.
- * An implicit devfs_get() is performed on the returned entry.
- */
-
-static struct devfs_entry *_devfs_descend(struct devfs_entry *dir,
- const char *name, int namelen,
- int *next_pos)
-{
- const char *stop, *ptr;
- struct devfs_entry *entry;
-
- if ((namelen >= 3) && (strncmp(name, "../", 3) == 0)) { /* Special-case going to parent directory */
- *next_pos = 3;
- return devfs_get(dir->parent);
- }
- stop = name + namelen;
- /* Search for a possible '/' */
- for (ptr = name; (ptr < stop) && (*ptr != '/'); ++ptr) ;
- *next_pos = ptr - name;
- read_lock(&dir->u.dir.lock);
- entry = _devfs_search_dir(dir, name, *next_pos);
- read_unlock(&dir->u.dir.lock);
- return entry;
-} /* End Function _devfs_descend */
-
-static devfs_handle_t _devfs_make_parent_for_leaf(struct devfs_entry *dir,
- const char *name,
- int namelen, int *leaf_pos)
-{
- int next_pos = 0;
-
- if (dir == NULL)
- dir = _devfs_get_root_entry();
- if (dir == NULL)
- return NULL;
- devfs_get(dir);
- /* Search for possible trailing component and ignore it */
- for (--namelen; (namelen > 0) && (name[namelen] != '/'); --namelen) ;
- *leaf_pos = (name[namelen] == '/') ? (namelen + 1) : 0;
- for (; namelen > 0; name += next_pos, namelen -= next_pos) {
- struct devfs_entry *de, *old = NULL;
-
- if ((de =
- _devfs_descend(dir, name, namelen, &next_pos)) == NULL) {
- de = _devfs_alloc_entry(name, next_pos, MODE_DIR);
- devfs_get(de);
- if (!de || _devfs_append_entry(dir, de, &old)) {
- devfs_put(de);
- if (!old || !S_ISDIR(old->mode)) {
- devfs_put(old);
- devfs_put(dir);
- return NULL;
- }
- de = old; /* Use the existing directory */
- }
- }
- if (de == dir->parent) {
- devfs_put(dir);
- devfs_put(de);
- return NULL;
- }
- devfs_put(dir);
- dir = de;
- if (name[next_pos] == '/')
- ++next_pos;
- }
- return dir;
-} /* End Function _devfs_make_parent_for_leaf */
-
-static devfs_handle_t _devfs_prepare_leaf(devfs_handle_t * dir,
- const char *name, umode_t mode)
-{
- int namelen, leaf_pos;
- struct devfs_entry *de;
-
- namelen = strlen(name);
- if ((*dir = _devfs_make_parent_for_leaf(*dir, name, namelen,
- &leaf_pos)) == NULL) {
- PRINTK("(%s): could not create parent path\n", name);
- return NULL;
- }
- if ((de = _devfs_alloc_entry(name + leaf_pos, namelen - leaf_pos, mode))
- == NULL) {
- PRINTK("(%s): could not allocate entry\n", name);
- devfs_put(*dir);
- return NULL;
- }
- return de;
-} /* End Function _devfs_prepare_leaf */
-
-static devfs_handle_t _devfs_walk_path(struct devfs_entry *dir,
- const char *name, int namelen,
- int traverse_symlink)
-{
- int next_pos = 0;
-
- if (dir == NULL)
- dir = _devfs_get_root_entry();
- if (dir == NULL)
- return NULL;
- devfs_get(dir);
- for (; namelen > 0; name += next_pos, namelen -= next_pos) {
- struct devfs_entry *de, *link;
-
- if (!S_ISDIR(dir->mode)) {
- devfs_put(dir);
- return NULL;
- }
-
- if ((de =
- _devfs_descend(dir, name, namelen, &next_pos)) == NULL) {
- devfs_put(dir);
- return NULL;
- }
- if (S_ISLNK(de->mode) && traverse_symlink) { /* Need to follow the link: this is a stack chomper */
- /* FIXME what if it puts outside of mounted tree? */
- link = _devfs_walk_path(dir, de->u.symlink.linkname,
- de->u.symlink.length, TRUE);
- devfs_put(de);
- if (!link) {
- devfs_put(dir);
- return NULL;
- }
- de = link;
- }
- devfs_put(dir);
- dir = de;
- if (name[next_pos] == '/')
- ++next_pos;
- }
- return dir;
-} /* End Function _devfs_walk_path */
-
-/**
- * _devfs_find_entry - Find a devfs entry.
- * @dir: The handle to the parent devfs directory entry. If this is %NULL the
- * name is relative to the root of the devfs.
- * @name: The name of the entry. This may be %NULL.
- * @traverse_symlink: If %TRUE then symbolic links are traversed.
- *
- * Returns the devfs_entry pointer on success, else %NULL. An implicit
- * devfs_get() is performed.
- */
-
-static struct devfs_entry *_devfs_find_entry(devfs_handle_t dir,
- const char *name,
- int traverse_symlink)
-{
- unsigned int namelen = strlen(name);
-
- if (name[0] == '/') {
- /* Skip leading pathname component */
- if (namelen < 2) {
- PRINTK("(%s): too short\n", name);
- return NULL;
- }
- for (++name, --namelen; (*name != '/') && (namelen > 0);
- ++name, --namelen) ;
- if (namelen < 2) {
- PRINTK("(%s): too short\n", name);
- return NULL;
- }
- ++name;
- --namelen;
- }
- return _devfs_walk_path(dir, name, namelen, traverse_symlink);
-} /* End Function _devfs_find_entry */
-
-static struct devfs_entry *get_devfs_entry_from_vfs_inode(struct inode *inode)
-{
- if (inode == NULL)
- return NULL;
- VERIFY_ENTRY((struct devfs_entry *)inode->u.generic_ip);
- return inode->u.generic_ip;
-} /* End Function get_devfs_entry_from_vfs_inode */
-
-/**
- * free_dentry - Free the dentry for a device entry and invalidate inode.
- * @de: The entry.
- *
- * This must only be called after the entry has been unhooked from its
- * parent directory.
- */
-
-static void free_dentry(struct devfs_entry *de)
-{
- struct dentry *dentry = de->inode.dentry;
-
- if (!dentry)
- return;
- spin_lock(&dcache_lock);
- dget_locked(dentry);
- spin_unlock(&dcache_lock);
- /* Forcefully remove the inode */
- if (dentry->d_inode != NULL)
- dentry->d_inode->i_nlink = 0;
- d_drop(dentry);
- dput(dentry);
-} /* End Function free_dentry */
-
-/**
- * is_devfsd_or_child - Test if the current process is devfsd or one of its children.
- * @fs_info: The filesystem information.
- *
- * Returns %TRUE if devfsd or child, else %FALSE.
- */
-
-static int is_devfsd_or_child(struct fs_info *fs_info)
-{
- struct task_struct *p = current;
-
- if (p == fs_info->devfsd_task)
- return (TRUE);
- if (process_group(p) == fs_info->devfsd_pgrp)
- return (TRUE);
- read_lock(&tasklist_lock);
- for (; p != &init_task; p = p->real_parent) {
- if (p == fs_info->devfsd_task) {
- read_unlock(&tasklist_lock);
- return (TRUE);
- }
- }
- read_unlock(&tasklist_lock);
- return (FALSE);
-} /* End Function is_devfsd_or_child */
-
-/**
- * devfsd_queue_empty - Test if devfsd has work pending in its event queue.
- * @fs_info: The filesystem information.
- *
- * Returns %TRUE if the queue is empty, else %FALSE.
- */
-
-static inline int devfsd_queue_empty(struct fs_info *fs_info)
-{
- return (fs_info->devfsd_last_event) ? FALSE : TRUE;
-} /* End Function devfsd_queue_empty */
-
-/**
- * wait_for_devfsd_finished - Wait for devfsd to finish processing its event queue.
- * @fs_info: The filesystem information.
- *
- * Returns %TRUE if no more waiting will be required, else %FALSE.
- */
-
-static int wait_for_devfsd_finished(struct fs_info *fs_info)
-{
- DECLARE_WAITQUEUE(wait, current);
-
- if (fs_info->devfsd_task == NULL)
- return (TRUE);
- if (devfsd_queue_empty(fs_info) && fs_info->devfsd_sleeping)
- return TRUE;
- if (is_devfsd_or_child(fs_info))
- return (FALSE);
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&fs_info->revalidate_wait_queue, &wait);
- if (!devfsd_queue_empty(fs_info) || !fs_info->devfsd_sleeping)
- if (fs_info->devfsd_task)
- schedule();
- remove_wait_queue(&fs_info->revalidate_wait_queue, &wait);
- __set_current_state(TASK_RUNNING);
- return (TRUE);
-} /* End Function wait_for_devfsd_finished */
-
-/**
- * devfsd_notify_de - Notify the devfsd daemon of a change.
- * @de: The devfs entry that has changed. This and all parent entries will
- * have their reference counts incremented if the event was queued.
- * @type: The type of change.
- * @mode: The mode of the entry.
- * @uid: The user ID.
- * @gid: The group ID.
- * @fs_info: The filesystem info.
- *
- * Returns %TRUE if an event was queued and devfsd woken up, else %FALSE.
- */
-
-static int devfsd_notify_de(struct devfs_entry *de,
- unsigned short type, umode_t mode,
- uid_t uid, gid_t gid, struct fs_info *fs_info)
-{
- struct devfsd_buf_entry *entry;
- struct devfs_entry *curr;
-
- if (!(fs_info->devfsd_event_mask & (1 << type)))
- return (FALSE);
- if ((entry = kmem_cache_alloc(devfsd_buf_cache, SLAB_KERNEL)) == NULL) {
- atomic_inc(&fs_info->devfsd_overrun_count);
- return (FALSE);
- }
- for (curr = de; curr != NULL; curr = curr->parent)
- devfs_get(curr);
- entry->de = de;
- entry->type = type;
- entry->mode = mode;
- entry->uid = uid;
- entry->gid = gid;
- entry->next = NULL;
- spin_lock(&fs_info->devfsd_buffer_lock);
- if (!fs_info->devfsd_first_event)
- fs_info->devfsd_first_event = entry;
- if (fs_info->devfsd_last_event)
- fs_info->devfsd_last_event->next = entry;
- fs_info->devfsd_last_event = entry;
- spin_unlock(&fs_info->devfsd_buffer_lock);
- wake_up_interruptible(&fs_info->devfsd_wait_queue);
- return (TRUE);
-} /* End Function devfsd_notify_de */
-
-/**
- * devfsd_notify - Notify the devfsd daemon of a change.
- * @de: The devfs entry that has changed.
- * @type: The type of change event.
- * @wait: If TRUE, the function waits for the daemon to finish processing
- * the event.
- */
-
-static void devfsd_notify(struct devfs_entry *de, unsigned short type)
-{
- devfsd_notify_de(de, type, de->mode, current->euid,
- current->egid, &fs_info);
-}
-
-static int devfs_mk_dev(dev_t dev, umode_t mode, const char *fmt, va_list args)
-{
- struct devfs_entry *dir = NULL, *de;
- char buf[64];
- int error, n;
-
- n = vsnprintf(buf, sizeof(buf), fmt, args);
- if (n >= sizeof(buf) || !buf[0]) {
- printk(KERN_WARNING "%s: invalid format string %s\n",
- __FUNCTION__, fmt);
- return -EINVAL;
- }
-
- de = _devfs_prepare_leaf(&dir, buf, mode);
- if (!de) {
- printk(KERN_WARNING "%s: could not prepare leaf for %s\n",
- __FUNCTION__, buf);
- return -ENOMEM; /* could be more accurate... */
- }
-
- de->u.dev = dev;
-
- error = _devfs_append_entry(dir, de, NULL);
- if (error) {
- printk(KERN_WARNING "%s: could not append to parent for %s\n",
- __FUNCTION__, buf);
- goto out;
- }
-
- devfsd_notify(de, DEVFSD_NOTIFY_REGISTERED);
- out:
- devfs_put(dir);
- return error;
-}
-
-int devfs_mk_bdev(dev_t dev, umode_t mode, const char *fmt, ...)
-{
- va_list args;
-
- if (!S_ISBLK(mode)) {
- printk(KERN_WARNING "%s: invalide mode (%u) for %s\n",
- __FUNCTION__, mode, fmt);
- return -EINVAL;
- }
-
- va_start(args, fmt);
- return devfs_mk_dev(dev, mode, fmt, args);
-}
-
-EXPORT_SYMBOL(devfs_mk_bdev);
-
-int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...)
-{
- va_list args;
-
- if (!S_ISCHR(mode)) {
- printk(KERN_WARNING "%s: invalide mode (%u) for %s\n",
- __FUNCTION__, mode, fmt);
- return -EINVAL;
- }
-
- va_start(args, fmt);
- return devfs_mk_dev(dev, mode, fmt, args);
-}
-
-EXPORT_SYMBOL(devfs_mk_cdev);
-
-/**
- * _devfs_unhook - Unhook a device entry from its parents list
- * @de: The entry to unhook.
- *
- * Returns %TRUE if the entry was unhooked, else %FALSE if it was
- * previously unhooked.
- * The caller must have a write lock on the parent directory.
- */
-
-static int _devfs_unhook(struct devfs_entry *de)
-{
- struct devfs_entry *parent;
-
- if (!de || (de->prev == de))
- return FALSE;
- parent = de->parent;
- if (de->prev == NULL)
- parent->u.dir.first = de->next;
- else
- de->prev->next = de->next;
- if (de->next == NULL)
- parent->u.dir.last = de->prev;
- else
- de->next->prev = de->prev;
- de->prev = de; /* Indicate we're unhooked */
- de->next = NULL; /* Force early termination for <devfs_readdir> */
- return TRUE;
-} /* End Function _devfs_unhook */
-
-/**
- * _devfs_unregister - Unregister a device entry from its parent.
- * @dir: The parent directory.
- * @de: The entry to unregister.
- *
- * The caller must have a write lock on the parent directory, which is
- * unlocked by this function.
- */
-
-static void _devfs_unregister(struct devfs_entry *dir, struct devfs_entry *de)
-{
- int unhooked = _devfs_unhook(de);
-
- write_unlock(&dir->u.dir.lock);
- if (!unhooked)
- return;
- devfs_get(dir);
- devfsd_notify(de, DEVFSD_NOTIFY_UNREGISTERED);
- free_dentry(de);
- devfs_put(dir);
- if (!S_ISDIR(de->mode))
- return;
- while (TRUE) { /* Recursively unregister: this is a stack chomper */
- struct devfs_entry *child;
-
- write_lock(&de->u.dir.lock);
- de->u.dir.no_more_additions = TRUE;
- child = de->u.dir.first;
- VERIFY_ENTRY(child);
- _devfs_unregister(de, child);
- if (!child)
- break;
- DPRINTK(DEBUG_UNREGISTER, "(%s): child: %p refcount: %d\n",
- child->name, child, atomic_read(&child->refcount));
- devfs_put(child);
- }
-} /* End Function _devfs_unregister */
-
-static int devfs_do_symlink(devfs_handle_t dir, const char *name,
- const char *link, devfs_handle_t * handle)
-{
- int err;
- unsigned int linklength;
- char *newlink;
- struct devfs_entry *de;
-
- if (handle != NULL)
- *handle = NULL;
- if (name == NULL) {
- PRINTK("(): NULL name pointer\n");
- return -EINVAL;
- }
- if (link == NULL) {
- PRINTK("(%s): NULL link pointer\n", name);
- return -EINVAL;
- }
- linklength = strlen(link);
- if ((newlink = kmalloc(linklength + 1, GFP_KERNEL)) == NULL)
- return -ENOMEM;
- memcpy(newlink, link, linklength);
- newlink[linklength] = '\0';
- if ((de = _devfs_prepare_leaf(&dir, name, S_IFLNK | S_IRUGO | S_IXUGO))
- == NULL) {
- PRINTK("(%s): could not prepare leaf\n", name);
- kfree(newlink);
- return -ENOTDIR;
- }
- de->info = NULL;
- de->u.symlink.linkname = newlink;
- de->u.symlink.length = linklength;
- if ((err = _devfs_append_entry(dir, de, NULL)) != 0) {
- PRINTK("(%s): could not append to parent, err: %d\n", name,
- err);
- devfs_put(dir);
- return err;
- }
- devfs_put(dir);
-#ifdef CONFIG_DEVFS_DEBUG
- spin_lock(&stat_lock);
- stat_num_bytes += linklength + 1;
- spin_unlock(&stat_lock);
-#endif
- if (handle != NULL)
- *handle = de;
- return 0;
-} /* End Function devfs_do_symlink */
-
-/**
- * devfs_mk_symlink Create a symbolic link in the devfs namespace.
- * @from: The name of the entry.
- * @to: Name of the destination
- *
- * Returns 0 on success, else a negative error code is returned.
- */
-
-int devfs_mk_symlink(const char *from, const char *to)
-{
- devfs_handle_t de;
- int err;
-
- err = devfs_do_symlink(NULL, from, to, &de);
- if (!err) {
- de->vfs = TRUE;
- devfsd_notify(de, DEVFSD_NOTIFY_REGISTERED);
- }
-
- return err;
-}
-
-/**
- * devfs_mk_dir - Create a directory in the devfs namespace.
- * new name is relative to the root of the devfs.
- * @fmt: The name of the entry.
- *
- * Use of this function is optional. The devfs_register() function
- * will automatically create intermediate directories as needed. This function
- * is provided for efficiency reasons, as it provides a handle to a directory.
- * On failure %NULL is returned.
- */
-
-int devfs_mk_dir(const char *fmt, ...)
-{
- struct devfs_entry *dir = NULL, *de = NULL, *old;
- char buf[64];
- va_list args;
- int error, n;
-
- va_start(args, fmt);
- n = vsnprintf(buf, 64, fmt, args);
- if (n >= 64 || !buf[0]) {
- printk(KERN_WARNING "%s: invalid argument.", __FUNCTION__);
- return -EINVAL;
- }
-
- de = _devfs_prepare_leaf(&dir, buf, MODE_DIR);
- if (!de) {
- PRINTK("(%s): could not prepare leaf\n", buf);
- return -EINVAL;
- }
-
- error = _devfs_append_entry(dir, de, &old);
- if (error == -EEXIST && S_ISDIR(old->mode)) {
- /*
- * devfs_mk_dir() of an already-existing directory will
- * return success.
- */
- error = 0;
- goto out_put;
- } else if (error) {
- PRINTK("(%s): could not append to dir: %p \"%s\"\n",
- buf, dir, dir->name);
- devfs_put(old);
- goto out_put;
- }
-
- devfsd_notify(de, DEVFSD_NOTIFY_REGISTERED);
-
- out_put:
- devfs_put(dir);
- return error;
-}
-
-void devfs_remove(const char *fmt, ...)
-{
- char buf[64];
- va_list args;
- int n;
-
- va_start(args, fmt);
- n = vsnprintf(buf, sizeof(buf), fmt, args);
- if (n < sizeof(buf) && buf[0]) {
- devfs_handle_t de = _devfs_find_entry(NULL, buf, 0);
-
- if (!de) {
- printk(KERN_ERR "%s: %s not found, cannot remove\n",
- __FUNCTION__, buf);
- dump_stack();
- return;
- }
-
- write_lock(&de->parent->u.dir.lock);
- _devfs_unregister(de->parent, de);
- devfs_put(de);
- devfs_put(de);
- }
-}
-
-/**
- * devfs_generate_path - Generate a pathname for an entry, relative to the devfs root.
- * @de: The devfs entry.
- * @path: The buffer to write the pathname to. The pathname and '\0'
- * terminator will be written at the end of the buffer.
- * @buflen: The length of the buffer.
- *
- * Returns the offset in the buffer where the pathname starts on success,
- * else a negative error code.
- */
-
-static int devfs_generate_path(devfs_handle_t de, char *path, int buflen)
-{
- int pos;
-#define NAMEOF(de) ( (de)->mode ? (de)->name : (de)->u.name )
-
- if (de == NULL)
- return -EINVAL;
- VERIFY_ENTRY(de);
- if (de->namelen >= buflen)
- return -ENAMETOOLONG; /* Must be first */
- path[buflen - 1] = '\0';
- if (de->parent == NULL)
- return buflen - 1; /* Don't prepend root */
- pos = buflen - de->namelen - 1;
- memcpy(path + pos, NAMEOF(de), de->namelen);
- for (de = de->parent; de->parent != NULL; de = de->parent) {
- if (pos - de->namelen - 1 < 0)
- return -ENAMETOOLONG;
- path[--pos] = '/';
- pos -= de->namelen;
- memcpy(path + pos, NAMEOF(de), de->namelen);
- }
- return pos;
-} /* End Function devfs_generate_path */
-
-/**
- * devfs_setup - Process kernel boot options.
- * @str: The boot options after the "devfs=".
- */
-
-static int __init devfs_setup(char *str)
-{
- static struct {
- char *name;
- unsigned int mask;
- unsigned int *opt;
- } devfs_options_tab[] __initdata = {
-#ifdef CONFIG_DEVFS_DEBUG
- {
- "dall", DEBUG_ALL, &devfs_debug_init}, {
- "dmod", DEBUG_MODULE_LOAD, &devfs_debug_init}, {
- "dreg", DEBUG_REGISTER, &devfs_debug_init}, {
- "dunreg", DEBUG_UNREGISTER, &devfs_debug_init}, {
- "dfree", DEBUG_FREE, &devfs_debug_init}, {
- "diget", DEBUG_I_GET, &devfs_debug_init}, {
- "dchange", DEBUG_SET_FLAGS, &devfs_debug_init}, {
- "dsread", DEBUG_S_READ, &devfs_debug_init}, {
- "dichange", DEBUG_I_CHANGE, &devfs_debug_init}, {
- "dimknod", DEBUG_I_MKNOD, &devfs_debug_init}, {
- "dilookup", DEBUG_I_LOOKUP, &devfs_debug_init}, {
- "diunlink", DEBUG_I_UNLINK, &devfs_debug_init},
-#endif /* CONFIG_DEVFS_DEBUG */
- {
- "mount", OPTION_MOUNT, &boot_options}, {
- NULL, 0, NULL}
- };
-
- while ((*str != '\0') && !isspace(*str)) {
- int i, found = 0, invert = 0;
-
- if (strncmp(str, "no", 2) == 0) {
- invert = 1;
- str += 2;
- }
- for (i = 0; devfs_options_tab[i].name != NULL; i++) {
- int len = strlen(devfs_options_tab[i].name);
-
- if (strncmp(str, devfs_options_tab[i].name, len) == 0) {
- if (invert)
- *devfs_options_tab[i].opt &=
- ~devfs_options_tab[i].mask;
- else
- *devfs_options_tab[i].opt |=
- devfs_options_tab[i].mask;
- str += len;
- found = 1;
- break;
- }
- }
- if (!found)
- return 0; /* No match */
- if (*str != ',')
- return 0; /* No more options */
- ++str;
- }
- return 1;
-} /* End Function devfs_setup */
-
-__setup("devfs=", devfs_setup);
-
-EXPORT_SYMBOL(devfs_mk_dir);
-EXPORT_SYMBOL(devfs_remove);
-
-/**
- * try_modload - Notify devfsd of an inode lookup by a non-devfsd process.
- * @parent: The parent devfs entry.
- * @fs_info: The filesystem info.
- * @name: The device name.
- * @namelen: The number of characters in @name.
- * @buf: A working area that will be used. This must not go out of scope
- * until devfsd is idle again.
- *
- * Returns 0 on success (event was queued), else a negative error code.
- */
-
-static int try_modload(struct devfs_entry *parent, struct fs_info *fs_info,
- const char *name, unsigned namelen,
- struct devfs_entry *buf)
-{
- if (!(fs_info->devfsd_event_mask & (1 << DEVFSD_NOTIFY_LOOKUP)))
- return -ENOENT;
- if (is_devfsd_or_child(fs_info))
- return -ENOENT;
- memset(buf, 0, sizeof *buf);
- atomic_set(&buf->refcount, 1);
- buf->parent = parent;
- buf->namelen = namelen;
- buf->u.name = name;
- WRITE_ENTRY_MAGIC(buf, MAGIC_VALUE);
- if (!devfsd_notify_de(buf, DEVFSD_NOTIFY_LOOKUP, 0,
- current->euid, current->egid, fs_info))
- return -ENOENT;
- /* Possible success: event has been queued */
- return 0;
-} /* End Function try_modload */
-
-/* Superblock operations follow */
-
-static struct inode_operations devfs_iops;
-static struct inode_operations devfs_dir_iops;
-static const struct file_operations devfs_fops;
-static const struct file_operations devfs_dir_fops;
-static struct inode_operations devfs_symlink_iops;
-
-static int devfs_notify_change(struct dentry *dentry, struct iattr *iattr)
-{
- int retval;
- struct devfs_entry *de;
- struct inode *inode = dentry->d_inode;
- struct fs_info *fs_info = inode->i_sb->s_fs_info;
-
- de = get_devfs_entry_from_vfs_inode(inode);
- if (de == NULL)
- return -ENODEV;
- retval = inode_change_ok(inode, iattr);
- if (retval != 0)
- return retval;
- retval = inode_setattr(inode, iattr);
- if (retval != 0)
- return retval;
- DPRINTK(DEBUG_I_CHANGE, "(%d): VFS inode: %p devfs_entry: %p\n",
- (int)inode->i_ino, inode, de);
- DPRINTK(DEBUG_I_CHANGE, "(): mode: 0%o uid: %d gid: %d\n",
- (int)inode->i_mode, (int)inode->i_uid, (int)inode->i_gid);
- /* Inode is not on hash chains, thus must save permissions here rather
- than in a write_inode() method */
- de->mode = inode->i_mode;
- de->inode.uid = inode->i_uid;
- de->inode.gid = inode->i_gid;
- de->inode.atime = inode->i_atime;
- de->inode.mtime = inode->i_mtime;
- de->inode.ctime = inode->i_ctime;
- if ((iattr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID)) &&
- !is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CHANGE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_notify_change */
-
-static struct super_operations devfs_sops = {
- .drop_inode = generic_delete_inode,
- .statfs = simple_statfs,
-};
-
-/**
- * _devfs_get_vfs_inode - Get a VFS inode.
- * @sb: The super block.
- * @de: The devfs inode.
- * @dentry: The dentry to register with the devfs inode.
- *
- * Returns the inode on success, else %NULL. An implicit devfs_get() is
- * performed if the inode is created.
- */
-
-static struct inode *_devfs_get_vfs_inode(struct super_block *sb,
- struct devfs_entry *de,
- struct dentry *dentry)
-{
- struct inode *inode;
-
- if (de->prev == de)
- return NULL; /* Quick check to see if unhooked */
- if ((inode = new_inode(sb)) == NULL) {
- PRINTK("(%s): new_inode() failed, de: %p\n", de->name, de);
- return NULL;
- }
- if (de->parent) {
- read_lock(&de->parent->u.dir.lock);
- if (de->prev != de)
- de->inode.dentry = dentry; /* Not unhooked */
- read_unlock(&de->parent->u.dir.lock);
- } else
- de->inode.dentry = dentry; /* Root: no locking needed */
- if (de->inode.dentry != dentry) { /* Must have been unhooked */
- iput(inode);
- return NULL;
- }
- /* FIXME where is devfs_put? */
- inode->u.generic_ip = devfs_get(de);
- inode->i_ino = de->inode.ino;
- DPRINTK(DEBUG_I_GET, "(%d): VFS inode: %p devfs_entry: %p\n",
- (int)inode->i_ino, inode, de);
- inode->i_blocks = 0;
- inode->i_blksize = FAKE_BLOCK_SIZE;
- inode->i_op = &devfs_iops;
- inode->i_mode = de->mode;
- if (S_ISDIR(de->mode)) {
- inode->i_op = &devfs_dir_iops;
- inode->i_fop = &devfs_dir_fops;
- } else if (S_ISLNK(de->mode)) {
- inode->i_op = &devfs_symlink_iops;
- inode->i_size = de->u.symlink.length;
- } else if (S_ISCHR(de->mode) || S_ISBLK(de->mode)) {
- init_special_inode(inode, de->mode, de->u.dev);
- } else if (S_ISFIFO(de->mode) || S_ISSOCK(de->mode)) {
- init_special_inode(inode, de->mode, 0);
- } else {
- PRINTK("(%s): unknown mode %o de: %p\n",
- de->name, de->mode, de);
- iput(inode);
- devfs_put(de);
- return NULL;
- }
-
- inode->i_uid = de->inode.uid;
- inode->i_gid = de->inode.gid;
- inode->i_atime = de->inode.atime;
- inode->i_mtime = de->inode.mtime;
- inode->i_ctime = de->inode.ctime;
- DPRINTK(DEBUG_I_GET, "(): mode: 0%o uid: %d gid: %d\n",
- (int)inode->i_mode, (int)inode->i_uid, (int)inode->i_gid);
- return inode;
-} /* End Function _devfs_get_vfs_inode */
-
-/* File operations for device entries follow */
-
-static int devfs_readdir(struct file *file, void *dirent, filldir_t filldir)
-{
- int err, count;
- int stored = 0;
- struct fs_info *fs_info;
- struct devfs_entry *parent, *de, *next = NULL;
- struct inode *inode = file->f_dentry->d_inode;
-
- fs_info = inode->i_sb->s_fs_info;
- parent = get_devfs_entry_from_vfs_inode(file->f_dentry->d_inode);
- if ((long)file->f_pos < 0)
- return -EINVAL;
- DPRINTK(DEBUG_F_READDIR, "(%s): fs_info: %p pos: %ld\n",
- parent->name, fs_info, (long)file->f_pos);
- switch ((long)file->f_pos) {
- case 0:
- err = (*filldir) (dirent, "..", 2, file->f_pos,
- parent_ino(file->f_dentry), DT_DIR);
- if (err == -EINVAL)
- break;
- if (err < 0)
- return err;
- file->f_pos++;
- ++stored;
- /* Fall through */
- case 1:
- err =
- (*filldir) (dirent, ".", 1, file->f_pos, inode->i_ino,
- DT_DIR);
- if (err == -EINVAL)
- break;
- if (err < 0)
- return err;
- file->f_pos++;
- ++stored;
- /* Fall through */
- default:
- /* Skip entries */
- count = file->f_pos - 2;
- read_lock(&parent->u.dir.lock);
- for (de = parent->u.dir.first; de && (count > 0); de = de->next)
- --count;
- devfs_get(de);
- read_unlock(&parent->u.dir.lock);
- /* Now add all remaining entries */
- while (de) {
- err = (*filldir) (dirent, de->name, de->namelen,
- file->f_pos, de->inode.ino,
- de->mode >> 12);
- if (err < 0)
- devfs_put(de);
- else {
- file->f_pos++;
- ++stored;
- }
- if (err == -EINVAL)
- break;
- if (err < 0)
- return err;
- read_lock(&parent->u.dir.lock);
- next = devfs_get(de->next);
- read_unlock(&parent->u.dir.lock);
- devfs_put(de);
- de = next;
- }
- break;
- }
- return stored;
-} /* End Function devfs_readdir */
-
-/* Open devfs specific special files */
-static int devfs_open(struct inode *inode, struct file *file)
-{
- int err;
- int minor = MINOR(inode->i_rdev);
- struct file_operations *old_fops, *new_fops;
-
- switch (minor) {
- case 0: /* /dev/.devfsd */
- new_fops = fops_get(&devfsd_fops);
- break;
-#ifdef CONFIG_DEVFS_DEBUG
- case 1: /* /dev/.stat */
- new_fops = fops_get(&stat_fops);
- break;
-#endif
- default:
- return -ENODEV;
- }
-
- if (new_fops == NULL)
- return -ENODEV;
- old_fops = file->f_op;
- file->f_op = new_fops;
- err = new_fops->open ? new_fops->open(inode, file) : 0;
- if (err) {
- file->f_op = old_fops;
- fops_put(new_fops);
- } else
- fops_put(old_fops);
- return err;
-} /* End Function devfs_open */
-
-static const struct file_operations devfs_fops = {
- .open = devfs_open,
-};
-
-static const struct file_operations devfs_dir_fops = {
- .read = generic_read_dir,
- .readdir = devfs_readdir,
-};
-
-/* Dentry operations for device entries follow */
-
-/**
- * devfs_d_release - Callback for when a dentry is freed.
- * @dentry: The dentry.
- */
-
-static void devfs_d_release(struct dentry *dentry)
-{
- DPRINTK(DEBUG_D_RELEASE, "(%p): inode: %p\n", dentry, dentry->d_inode);
-} /* End Function devfs_d_release */
-
-/**
- * devfs_d_iput - Callback for when a dentry loses its inode.
- * @dentry: The dentry.
- * @inode: The inode.
- */
-
-static void devfs_d_iput(struct dentry *dentry, struct inode *inode)
-{
- struct devfs_entry *de;
-
- de = get_devfs_entry_from_vfs_inode(inode);
- DPRINTK(DEBUG_D_IPUT,
- "(%s): dentry: %p inode: %p de: %p de->dentry: %p\n", de->name,
- dentry, inode, de, de->inode.dentry);
- if (de->inode.dentry && (de->inode.dentry != dentry))
- OOPS("(%s): de: %p dentry: %p de->dentry: %p\n",
- de->name, de, dentry, de->inode.dentry);
- de->inode.dentry = NULL;
- iput(inode);
- devfs_put(de);
-} /* End Function devfs_d_iput */
-
-static int devfs_d_delete(struct dentry *dentry);
-
-static struct dentry_operations devfs_dops = {
- .d_delete = devfs_d_delete,
- .d_release = devfs_d_release,
- .d_iput = devfs_d_iput,
-};
-
-static int devfs_d_revalidate_wait(struct dentry *dentry, struct nameidata *);
-
-static struct dentry_operations devfs_wait_dops = {
- .d_delete = devfs_d_delete,
- .d_release = devfs_d_release,
- .d_iput = devfs_d_iput,
- .d_revalidate = devfs_d_revalidate_wait,
-};
-
-/**
- * devfs_d_delete - Callback for when all files for a dentry are closed.
- * @dentry: The dentry.
- */
-
-static int devfs_d_delete(struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
-
- if (dentry->d_op == &devfs_wait_dops)
- dentry->d_op = &devfs_dops;
- /* Unhash dentry if negative (has no inode) */
- if (inode == NULL) {
- DPRINTK(DEBUG_D_DELETE, "(%p): dropping negative dentry\n",
- dentry);
- return 1;
- }
- return 0;
-} /* End Function devfs_d_delete */
-
-struct devfs_lookup_struct {
- devfs_handle_t de;
- wait_queue_head_t wait_queue;
-};
-
-/* XXX: this doesn't handle the case where we got a negative dentry
- but a devfs entry has been registered in the meanwhile */
-static int devfs_d_revalidate_wait(struct dentry *dentry, struct nameidata *nd)
-{
- struct inode *dir = dentry->d_parent->d_inode;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- devfs_handle_t parent = get_devfs_entry_from_vfs_inode(dir);
- struct devfs_lookup_struct *lookup_info = dentry->d_fsdata;
- DECLARE_WAITQUEUE(wait, current);
- int need_lock;
-
- /*
- * FIXME HACK
- *
- * make sure that
- * d_instantiate always runs under lock
- * we release i_mutex lock before going to sleep
- *
- * unfortunately sometimes d_revalidate is called with
- * and sometimes without i_mutex lock held. The following checks
- * attempt to deduce when we need to add (and drop resp.) lock
- * here. This relies on current (2.6.2) calling coventions:
- *
- * lookup_hash is always run under i_mutex and is passing NULL
- * as nd
- *
- * open(...,O_CREATE,...) calls _lookup_hash under i_mutex
- * and sets flags to LOOKUP_OPEN|LOOKUP_CREATE
- *
- * all other invocations of ->d_revalidate seem to happen
- * outside of i_mutex
- */
- need_lock = nd &&
- (!(nd->flags & LOOKUP_CREATE) || (nd->flags & LOOKUP_PARENT));
-
- if (need_lock)
- mutex_lock(&dir->i_mutex);
-
- if (is_devfsd_or_child(fs_info)) {
- devfs_handle_t de = lookup_info->de;
- struct inode *inode;
-
- DPRINTK(DEBUG_I_LOOKUP,
- "(%s): dentry: %p inode: %p de: %p by: \"%s\"\n",
- dentry->d_name.name, dentry, dentry->d_inode, de,
- current->comm);
- if (dentry->d_inode)
- goto out;
- if (de == NULL) {
- read_lock(&parent->u.dir.lock);
- de = _devfs_search_dir(parent, dentry->d_name.name,
- dentry->d_name.len);
- read_unlock(&parent->u.dir.lock);
- if (de == NULL)
- goto out;
- lookup_info->de = de;
- }
- /* Create an inode, now that the driver information is available */
- inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry);
- if (!inode)
- goto out;
- DPRINTK(DEBUG_I_LOOKUP,
- "(%s): new VFS inode(%u): %p de: %p by: \"%s\"\n",
- de->name, de->inode.ino, inode, de, current->comm);
- d_instantiate(dentry, inode);
- goto out;
- }
- if (lookup_info == NULL)
- goto out; /* Early termination */
- read_lock(&parent->u.dir.lock);
- if (dentry->d_fsdata) {
- set_current_state(TASK_UNINTERRUPTIBLE);
- add_wait_queue(&lookup_info->wait_queue, &wait);
- read_unlock(&parent->u.dir.lock);
- /* at this point it is always (hopefully) locked */
- mutex_unlock(&dir->i_mutex);
- schedule();
- mutex_lock(&dir->i_mutex);
- /*
- * This does not need nor should remove wait from wait_queue.
- * Wait queue head is never reused - nothing is ever added to it
- * after all waiters have been waked up and head itself disappears
- * very soon after it. Moreover it is local variable on stack that
- * is likely to have already disappeared so any reference to it
- * at this point is buggy.
- */
-
- } else
- read_unlock(&parent->u.dir.lock);
-
- out:
- if (need_lock)
- mutex_unlock(&dir->i_mutex);
- return 1;
-} /* End Function devfs_d_revalidate_wait */
-
-/* Inode operations for device entries follow */
-
-static struct dentry *devfs_lookup(struct inode *dir, struct dentry *dentry,
- struct nameidata *nd)
-{
- struct devfs_entry tmp; /* Must stay in scope until devfsd idle again */
- struct devfs_lookup_struct lookup_info;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
- struct dentry *retval = NULL;
-
- /* Set up the dentry operations before anything else, to ensure cleaning
- up on any error */
- dentry->d_op = &devfs_dops;
- /* First try to get the devfs entry for this directory */
- parent = get_devfs_entry_from_vfs_inode(dir);
- DPRINTK(DEBUG_I_LOOKUP, "(%s): dentry: %p parent: %p by: \"%s\"\n",
- dentry->d_name.name, dentry, parent, current->comm);
- if (parent == NULL)
- return ERR_PTR(-ENOENT);
- read_lock(&parent->u.dir.lock);
- de = _devfs_search_dir(parent, dentry->d_name.name, dentry->d_name.len);
- read_unlock(&parent->u.dir.lock);
- lookup_info.de = de;
- init_waitqueue_head(&lookup_info.wait_queue);
- dentry->d_fsdata = &lookup_info;
- if (de == NULL) { /* Try with devfsd. For any kind of failure, leave a negative dentry
- so someone else can deal with it (in the case where the sysadmin
- does a mknod()). It's important to do this before hashing the
- dentry, so that the devfsd queue is filled before revalidates
- can start */
- if (try_modload(parent, fs_info, dentry->d_name.name, dentry->d_name.len, &tmp) < 0) { /* Lookup event was not queued to devfsd */
- d_add(dentry, NULL);
- return NULL;
- }
- }
- dentry->d_op = &devfs_wait_dops;
- d_add(dentry, NULL); /* Open the floodgates */
- /* Unlock directory semaphore, which will release any waiters. They
- will get the hashed dentry, and may be forced to wait for
- revalidation */
- mutex_unlock(&dir->i_mutex);
- wait_for_devfsd_finished(fs_info); /* If I'm not devfsd, must wait */
- mutex_lock(&dir->i_mutex); /* Grab it again because them's the rules */
- de = lookup_info.de;
- /* If someone else has been so kind as to make the inode, we go home
- early */
- if (dentry->d_inode)
- goto out;
- if (de == NULL) {
- read_lock(&parent->u.dir.lock);
- de = _devfs_search_dir(parent, dentry->d_name.name,
- dentry->d_name.len);
- read_unlock(&parent->u.dir.lock);
- if (de == NULL)
- goto out;
- /* OK, there's an entry now, but no VFS inode yet */
- }
- /* Create an inode, now that the driver information is available */
- inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry);
- if (!inode) {
- retval = ERR_PTR(-ENOMEM);
- goto out;
- }
- DPRINTK(DEBUG_I_LOOKUP,
- "(%s): new VFS inode(%u): %p de: %p by: \"%s\"\n", de->name,
- de->inode.ino, inode, de, current->comm);
- d_instantiate(dentry, inode);
- out:
- write_lock(&parent->u.dir.lock);
- dentry->d_op = &devfs_dops;
- dentry->d_fsdata = NULL;
- wake_up(&lookup_info.wait_queue);
- write_unlock(&parent->u.dir.lock);
- devfs_put(de);
- return retval;
-} /* End Function devfs_lookup */
-
-static int devfs_unlink(struct inode *dir, struct dentry *dentry)
-{
- int unhooked;
- struct devfs_entry *de;
- struct inode *inode = dentry->d_inode;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
-
- de = get_devfs_entry_from_vfs_inode(inode);
- DPRINTK(DEBUG_I_UNLINK, "(%s): de: %p\n", dentry->d_name.name, de);
- if (de == NULL)
- return -ENOENT;
- if (!de->vfs)
- return -EPERM;
- write_lock(&de->parent->u.dir.lock);
- unhooked = _devfs_unhook(de);
- write_unlock(&de->parent->u.dir.lock);
- if (!unhooked)
- return -ENOENT;
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_DELETE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- free_dentry(de);
- devfs_put(de);
- return 0;
-} /* End Function devfs_unlink */
-
-static int devfs_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
-{
- int err;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
-
- /* First try to get the devfs entry for this directory */
- parent = get_devfs_entry_from_vfs_inode(dir);
- if (parent == NULL)
- return -ENOENT;
- err = devfs_do_symlink(parent, dentry->d_name.name, symname, &de);
- DPRINTK(DEBUG_DISABLED, "(%s): errcode from <devfs_do_symlink>: %d\n",
- dentry->d_name.name, err);
- if (err < 0)
- return err;
- de->vfs = TRUE;
- de->inode.uid = current->euid;
- de->inode.gid = current->egid;
- de->inode.atime = CURRENT_TIME;
- de->inode.mtime = CURRENT_TIME;
- de->inode.ctime = CURRENT_TIME;
- if ((inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry)) == NULL)
- return -ENOMEM;
- DPRINTK(DEBUG_DISABLED, "(%s): new VFS inode(%u): %p dentry: %p\n",
- dentry->d_name.name, de->inode.ino, inode, dentry);
- d_instantiate(dentry, inode);
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_symlink */
-
-static int devfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
-{
- int err;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
-
- mode = (mode & ~S_IFMT) | S_IFDIR; /* VFS doesn't pass S_IFMT part */
- parent = get_devfs_entry_from_vfs_inode(dir);
- if (parent == NULL)
- return -ENOENT;
- de = _devfs_alloc_entry(dentry->d_name.name, dentry->d_name.len, mode);
- if (!de)
- return -ENOMEM;
- de->vfs = TRUE;
- if ((err = _devfs_append_entry(parent, de, NULL)) != 0)
- return err;
- de->inode.uid = current->euid;
- de->inode.gid = current->egid;
- de->inode.atime = CURRENT_TIME;
- de->inode.mtime = CURRENT_TIME;
- de->inode.ctime = CURRENT_TIME;
- if ((inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry)) == NULL)
- return -ENOMEM;
- DPRINTK(DEBUG_DISABLED, "(%s): new VFS inode(%u): %p dentry: %p\n",
- dentry->d_name.name, de->inode.ino, inode, dentry);
- d_instantiate(dentry, inode);
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_mkdir */
-
-static int devfs_rmdir(struct inode *dir, struct dentry *dentry)
-{
- int err = 0;
- struct devfs_entry *de;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct inode *inode = dentry->d_inode;
-
- if (dir->i_sb->s_fs_info != inode->i_sb->s_fs_info)
- return -EINVAL;
- de = get_devfs_entry_from_vfs_inode(inode);
- if (de == NULL)
- return -ENOENT;
- if (!S_ISDIR(de->mode))
- return -ENOTDIR;
- if (!de->vfs)
- return -EPERM;
- /* First ensure the directory is empty and will stay that way */
- write_lock(&de->u.dir.lock);
- if (de->u.dir.first)
- err = -ENOTEMPTY;
- else
- de->u.dir.no_more_additions = TRUE;
- write_unlock(&de->u.dir.lock);
- if (err)
- return err;
- /* Now unhook the directory from its parent */
- write_lock(&de->parent->u.dir.lock);
- if (!_devfs_unhook(de))
- err = -ENOENT;
- write_unlock(&de->parent->u.dir.lock);
- if (err)
- return err;
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_DELETE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- free_dentry(de);
- devfs_put(de);
- return 0;
-} /* End Function devfs_rmdir */
-
-static int devfs_mknod(struct inode *dir, struct dentry *dentry, int mode,
- dev_t rdev)
-{
- int err;
- struct fs_info *fs_info = dir->i_sb->s_fs_info;
- struct devfs_entry *parent, *de;
- struct inode *inode;
-
- DPRINTK(DEBUG_I_MKNOD, "(%s): mode: 0%o dev: %u:%u\n",
- dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
- parent = get_devfs_entry_from_vfs_inode(dir);
- if (parent == NULL)
- return -ENOENT;
- de = _devfs_alloc_entry(dentry->d_name.name, dentry->d_name.len, mode);
- if (!de)
- return -ENOMEM;
- de->vfs = TRUE;
- if (S_ISCHR(mode) || S_ISBLK(mode))
- de->u.dev = rdev;
- if ((err = _devfs_append_entry(parent, de, NULL)) != 0)
- return err;
- de->inode.uid = current->euid;
- de->inode.gid = current->egid;
- de->inode.atime = CURRENT_TIME;
- de->inode.mtime = CURRENT_TIME;
- de->inode.ctime = CURRENT_TIME;
- if ((inode = _devfs_get_vfs_inode(dir->i_sb, de, dentry)) == NULL)
- return -ENOMEM;
- DPRINTK(DEBUG_I_MKNOD, ": new VFS inode(%u): %p dentry: %p\n",
- de->inode.ino, inode, dentry);
- d_instantiate(dentry, inode);
- if (!is_devfsd_or_child(fs_info))
- devfsd_notify_de(de, DEVFSD_NOTIFY_CREATE, inode->i_mode,
- inode->i_uid, inode->i_gid, fs_info);
- return 0;
-} /* End Function devfs_mknod */
-
-static void *devfs_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
- struct devfs_entry *p = get_devfs_entry_from_vfs_inode(dentry->d_inode);
- nd_set_link(nd, p ? p->u.symlink.linkname : ERR_PTR(-ENODEV));
- return NULL;
-} /* End Function devfs_follow_link */
-
-static struct inode_operations devfs_iops = {
- .setattr = devfs_notify_change,
-};
-
-static struct inode_operations devfs_dir_iops = {
- .lookup = devfs_lookup,
- .unlink = devfs_unlink,
- .symlink = devfs_symlink,
- .mkdir = devfs_mkdir,
- .rmdir = devfs_rmdir,
- .mknod = devfs_mknod,
- .setattr = devfs_notify_change,
-};
-
-static struct inode_operations devfs_symlink_iops = {
- .readlink = generic_readlink,
- .follow_link = devfs_follow_link,
- .setattr = devfs_notify_change,
-};
-
-static int devfs_fill_super(struct super_block *sb, void *data, int silent)
-{
- struct inode *root_inode = NULL;
-
- if (_devfs_get_root_entry() == NULL)
- goto out_no_root;
- atomic_set(&fs_info.devfsd_overrun_count, 0);
- init_waitqueue_head(&fs_info.devfsd_wait_queue);
- init_waitqueue_head(&fs_info.revalidate_wait_queue);
- fs_info.sb = sb;
- sb->s_fs_info = &fs_info;
- sb->s_blocksize = 1024;
- sb->s_blocksize_bits = 10;
- sb->s_magic = DEVFS_SUPER_MAGIC;
- sb->s_op = &devfs_sops;
- sb->s_time_gran = 1;
- if ((root_inode = _devfs_get_vfs_inode(sb, root_entry, NULL)) == NULL)
- goto out_no_root;
- sb->s_root = d_alloc_root(root_inode);
- if (!sb->s_root)
- goto out_no_root;
- DPRINTK(DEBUG_S_READ, "(): made devfs ptr: %p\n", sb->s_fs_info);
- return 0;
-
- out_no_root:
- PRINTK("(): get root inode failed\n");
- if (root_inode)
- iput(root_inode);
- return -EINVAL;
-} /* End Function devfs_fill_super */
-
-static int devfs_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name,
- void *data, struct vfsmount *mnt)
-{
- return get_sb_single(fs_type, flags, data, devfs_fill_super, mnt);
-}
-
-static struct file_system_type devfs_fs_type = {
- .name = DEVFS_NAME,
- .get_sb = devfs_get_sb,
- .kill_sb = kill_anon_super,
-};
-
-/* File operations for devfsd follow */
-
-static ssize_t devfsd_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos)
-{
- int done = FALSE;
- int ival;
- loff_t pos, devname_offset, tlen, rpos;
- devfs_handle_t de;
- struct devfsd_buf_entry *entry;
- struct fs_info *fs_info = file->f_dentry->d_inode->i_sb->s_fs_info;
- struct devfsd_notify_struct *info = fs_info->devfsd_info;
- DECLARE_WAITQUEUE(wait, current);
-
- /* Verify the task has grabbed the queue */
- if (fs_info->devfsd_task != current)
- return -EPERM;
- info->major = 0;
- info->minor = 0;
- /* Block for a new entry */
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&fs_info->devfsd_wait_queue, &wait);
- while (devfsd_queue_empty(fs_info)) {
- fs_info->devfsd_sleeping = TRUE;
- wake_up(&fs_info->revalidate_wait_queue);
- schedule();
- fs_info->devfsd_sleeping = FALSE;
- if (signal_pending(current)) {
- remove_wait_queue(&fs_info->devfsd_wait_queue, &wait);
- __set_current_state(TASK_RUNNING);
- return -EINTR;
- }
- set_current_state(TASK_INTERRUPTIBLE);
- }
- remove_wait_queue(&fs_info->devfsd_wait_queue, &wait);
- __set_current_state(TASK_RUNNING);
- /* Now play with the data */
- ival = atomic_read(&fs_info->devfsd_overrun_count);
- info->overrun_count = ival;
- entry = fs_info->devfsd_first_event;
- info->type = entry->type;
- info->mode = entry->mode;
- info->uid = entry->uid;
- info->gid = entry->gid;
- de = entry->de;
- if (S_ISCHR(de->mode) || S_ISBLK(de->mode)) {
- info->major = MAJOR(de->u.dev);
- info->minor = MINOR(de->u.dev);
- }
- pos = devfs_generate_path(de, info->devname, DEVFS_PATHLEN);
- if (pos < 0)
- return pos;
- info->namelen = DEVFS_PATHLEN - pos - 1;
- if (info->mode == 0)
- info->mode = de->mode;
- devname_offset = info->devname - (char *)info;
- rpos = *ppos;
- if (rpos < devname_offset) {
- /* Copy parts of the header */
- tlen = devname_offset - rpos;
- if (tlen > len)
- tlen = len;
- if (copy_to_user(buf, (char *)info + rpos, tlen)) {
- return -EFAULT;
- }
- rpos += tlen;
- buf += tlen;
- len -= tlen;
- }
- if ((rpos >= devname_offset) && (len > 0)) {
- /* Copy the name */
- tlen = info->namelen + 1;
- if (tlen > len)
- tlen = len;
- else
- done = TRUE;
- if (copy_to_user
- (buf, info->devname + pos + rpos - devname_offset, tlen)) {
- return -EFAULT;
- }
- rpos += tlen;
- }
- tlen = rpos - *ppos;
- if (done) {
- devfs_handle_t parent;
-
- spin_lock(&fs_info->devfsd_buffer_lock);
- fs_info->devfsd_first_event = entry->next;
- if (entry->next == NULL)
- fs_info->devfsd_last_event = NULL;
- spin_unlock(&fs_info->devfsd_buffer_lock);
- for (; de != NULL; de = parent) {
- parent = de->parent;
- devfs_put(de);
- }
- kmem_cache_free(devfsd_buf_cache, entry);
- if (ival > 0)
- atomic_sub(ival, &fs_info->devfsd_overrun_count);
- *ppos = 0;
- } else
- *ppos = rpos;
- return tlen;
-} /* End Function devfsd_read */
-
-static int devfsd_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int ival;
- struct fs_info *fs_info = inode->i_sb->s_fs_info;
-
- switch (cmd) {
- case DEVFSDIOC_GET_PROTO_REV:
- ival = DEVFSD_PROTOCOL_REVISION_KERNEL;
- if (copy_to_user((void __user *)arg, &ival, sizeof ival))
- return -EFAULT;
- break;
- case DEVFSDIOC_SET_EVENT_MASK:
- /* Ensure only one reader has access to the queue. This scheme will
- work even if the global kernel lock were to be removed, because it
- doesn't matter who gets in first, as long as only one gets it */
- if (fs_info->devfsd_task == NULL) {
- static DEFINE_SPINLOCK(lock);
-
- if (!spin_trylock(&lock))
- return -EBUSY;
- if (fs_info->devfsd_task != NULL) { /* We lost the race... */
- spin_unlock(&lock);
- return -EBUSY;
- }
- fs_info->devfsd_task = current;
- spin_unlock(&lock);
- fs_info->devfsd_pgrp =
- (process_group(current) ==
- current->pid) ? process_group(current) : 0;
- fs_info->devfsd_file = file;
- fs_info->devfsd_info =
- kmalloc(sizeof *fs_info->devfsd_info, GFP_KERNEL);
- if (!fs_info->devfsd_info) {
- devfsd_close(inode, file);
- return -ENOMEM;
- }
- } else if (fs_info->devfsd_task != current)
- return -EBUSY;
- fs_info->devfsd_event_mask = arg; /* Let the masses come forth */
- break;
- case DEVFSDIOC_RELEASE_EVENT_QUEUE:
- if (fs_info->devfsd_file != file)
- return -EPERM;
- return devfsd_close(inode, file);
- /*break; */
-#ifdef CONFIG_DEVFS_DEBUG
- case DEVFSDIOC_SET_DEBUG_MASK:
- if (copy_from_user(&ival, (void __user *)arg, sizeof ival))
- return -EFAULT;
- devfs_debug = ival;
- break;
-#endif
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-} /* End Function devfsd_ioctl */
-
-static int devfsd_close(struct inode *inode, struct file *file)
-{
- struct devfsd_buf_entry *entry, *next;
- struct fs_info *fs_info = inode->i_sb->s_fs_info;
-
- if (fs_info->devfsd_file != file)
- return 0;
- fs_info->devfsd_event_mask = 0;
- fs_info->devfsd_file = NULL;
- spin_lock(&fs_info->devfsd_buffer_lock);
- entry = fs_info->devfsd_first_event;
- fs_info->devfsd_first_event = NULL;
- fs_info->devfsd_last_event = NULL;
- kfree(fs_info->devfsd_info);
- fs_info->devfsd_info = NULL;
- spin_unlock(&fs_info->devfsd_buffer_lock);
- fs_info->devfsd_pgrp = 0;
- fs_info->devfsd_task = NULL;
- wake_up(&fs_info->revalidate_wait_queue);
- for (; entry; entry = next) {
- next = entry->next;
- kmem_cache_free(devfsd_buf_cache, entry);
- }
- return 0;
-} /* End Function devfsd_close */
-
-#ifdef CONFIG_DEVFS_DEBUG
-static ssize_t stat_read(struct file *file, char __user *buf, size_t len,
- loff_t * ppos)
-{
- ssize_t num;
- char txt[80];
-
- num = sprintf(txt, "Number of entries: %u number of bytes: %u\n",
- stat_num_entries, stat_num_bytes) + 1;
- if (*ppos >= num)
- return 0;
- if (*ppos + len > num)
- len = num - *ppos;
- if (copy_to_user(buf, txt + *ppos, len))
- return -EFAULT;
- *ppos += len;
- return len;
-} /* End Function stat_read */
-#endif
-
-static int __init init_devfs_fs(void)
-{
- int err;
- int major;
- struct devfs_entry *devfsd;
-#ifdef CONFIG_DEVFS_DEBUG
- struct devfs_entry *stat;
-#endif
-
- if (_devfs_get_root_entry() == NULL)
- return -ENOMEM;
-
- printk(KERN_INFO "%s: %s Richard Gooch (rgooch@atnf.csiro.au)\n",
- DEVFS_NAME, DEVFS_VERSION);
- devfsd_buf_cache = kmem_cache_create("devfsd_event",
- sizeof(struct devfsd_buf_entry),
- 0, 0, NULL, NULL);
- if (!devfsd_buf_cache)
- OOPS("(): unable to allocate event slab\n");
-#ifdef CONFIG_DEVFS_DEBUG
- devfs_debug = devfs_debug_init;
- printk(KERN_INFO "%s: devfs_debug: 0x%0x\n", DEVFS_NAME, devfs_debug);
-#endif
- printk(KERN_INFO "%s: boot_options: 0x%0x\n", DEVFS_NAME, boot_options);
-
- /* register special device for devfsd communication */
- major = register_chrdev(0, "devfs", &devfs_fops);
- if (major < 0)
- return major;
-
- /* And create the entry for ".devfsd" */
- devfsd = _devfs_alloc_entry(".devfsd", 0, S_IFCHR | S_IRUSR | S_IWUSR);
- if (devfsd == NULL)
- return -ENOMEM;
- devfsd->u.dev = MKDEV(major, 0);
- _devfs_append_entry(root_entry, devfsd, NULL);
-
-#ifdef CONFIG_DEVFS_DEBUG
- stat = _devfs_alloc_entry(".stat", 0, S_IFCHR | S_IRUGO);
- if (stat == NULL)
- return -ENOMEM;
- stat->u.dev = MKDEV(major, 1);
- _devfs_append_entry(root_entry, stat, NULL);
-#endif
-
- err = register_filesystem(&devfs_fs_type);
- return err;
-} /* End Function init_devfs_fs */
-
-void __init mount_devfs_fs(void)
-{
- int err;
-
- if (!(boot_options & OPTION_MOUNT))
- return;
- err = do_mount("none", "/dev", "devfs", 0, NULL);
- if (err == 0)
- printk(KERN_INFO "Mounted devfs on /dev\n");
- else
- PRINTK("(): unable to mount devfs, err: %d\n", err);
-} /* End Function mount_devfs_fs */
-
-module_init(init_devfs_fs)
diff --git a/fs/devfs/util.c b/fs/devfs/util.c
deleted file mode 100644
index db06d38..0000000
--- a/fs/devfs/util.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* devfs (Device FileSystem) utilities.
-
- Copyright (C) 1999-2002 Richard Gooch
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Richard Gooch may be reached by email at rgooch@atnf.csiro.au
- The postal address is:
- Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
-
- ChangeLog
-
- 19991031 Richard Gooch <rgooch@atnf.csiro.au>
- Created.
- 19991103 Richard Gooch <rgooch@atnf.csiro.au>
- Created <_devfs_convert_name> and supported SCSI and IDE CD-ROMs
- 20000203 Richard Gooch <rgooch@atnf.csiro.au>
- Changed operations pointer type to void *.
- 20000621 Richard Gooch <rgooch@atnf.csiro.au>
- Changed interface to <devfs_register_series>.
- 20000622 Richard Gooch <rgooch@atnf.csiro.au>
- Took account of interface change to <devfs_mk_symlink>.
- Took account of interface change to <devfs_mk_dir>.
- 20010519 Richard Gooch <rgooch@atnf.csiro.au>
- Documentation cleanup.
- 20010709 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_*alloc_major> and <devfs_*alloc_devnum>.
- 20010710 Richard Gooch <rgooch@atnf.csiro.au>
- Created <devfs_*alloc_unique_number>.
- 20010730 Richard Gooch <rgooch@atnf.csiro.au>
- Documentation typo fix.
- 20010806 Richard Gooch <rgooch@atnf.csiro.au>
- Made <block_semaphore> and <char_semaphore> private.
- 20010813 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfs_alloc_unique_number>: limited to 128 numbers
- 20010818 Richard Gooch <rgooch@atnf.csiro.au>
- Updated major masks up to Linus' "no new majors" proclamation.
- Block: were 126 now 122 free, char: were 26 now 19 free.
- 20020324 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bug in <devfs_alloc_unique_number>: was clearing beyond
- bitfield.
- 20020326 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed bitfield data type for <devfs_*alloc_devnum>.
- Made major bitfield type and initialiser 64 bit safe.
- 20020413 Richard Gooch <rgooch@atnf.csiro.au>
- Fixed shift warning on 64 bit machines.
- 20020428 Richard Gooch <rgooch@atnf.csiro.au>
- Copied and used macro for error messages from fs/devfs/base.c
- 20021013 Richard Gooch <rgooch@atnf.csiro.au>
- Documentation fix.
- 20030101 Adam J. Richter <adam@yggdrasil.com>
- Eliminate DEVFS_SPECIAL_{CHR,BLK}. Use mode_t instead.
- 20030106 Christoph Hellwig <hch@infradead.org>
- Rewrite devfs_{,de}alloc_devnum to look like C code.
-*/
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/genhd.h>
-#include <linux/bitops.h>
-
-int devfs_register_tape(const char *name)
-{
- char tname[32], dest[64];
- static unsigned int tape_counter;
- unsigned int n = tape_counter++;
-
- sprintf(dest, "../%s", name);
- sprintf(tname, "tapes/tape%u", n);
- devfs_mk_symlink(tname, dest);
-
- return n;
-}
-
-EXPORT_SYMBOL(devfs_register_tape);
-
-void devfs_unregister_tape(int num)
-{
- if (num >= 0)
- devfs_remove("tapes/tape%u", num);
-}
-
-EXPORT_SYMBOL(devfs_unregister_tape);
diff --git a/fs/partitions/Makefile b/fs/partitions/Makefile
index 42c7d38..d713ce6 100644
--- a/fs/partitions/Makefile
+++ b/fs/partitions/Makefile
@@ -4,7 +4,6 @@
obj-y := check.o
-obj-$(CONFIG_DEVFS_FS) += devfs.o
obj-$(CONFIG_ACORN_PARTITION) += acorn.o
obj-$(CONFIG_AMIGA_PARTITION) += amiga.o
obj-$(CONFIG_ATARI_PARTITION) += atari.o
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 2ef313a..8396340 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -18,10 +18,8 @@
#include <linux/fs.h>
#include <linux/kmod.h>
#include <linux/ctype.h>
-#include <linux/devfs_fs_kernel.h>
#include "check.h"
-#include "devfs.h"
#include "acorn.h"
#include "amiga.h"
@@ -161,18 +159,11 @@
if (!state)
return NULL;
-#ifdef CONFIG_DEVFS_FS
- if (hd->devfs_name[0] != '\0') {
- printk(KERN_INFO " /dev/%s:", hd->devfs_name);
+ disk_name(hd, 0, state->name);
+ printk(KERN_INFO " %s:", state->name);
+ if (isdigit(state->name[strlen(state->name)-1]))
sprintf(state->name, "p");
- }
-#endif
- else {
- disk_name(hd, 0, state->name);
- printk(KERN_INFO " %s:", state->name);
- if (isdigit(state->name[strlen(state->name)-1]))
- sprintf(state->name, "p");
- }
+
state->limit = hd->minors;
i = res = 0;
while (!res && check_part[i]) {
@@ -328,7 +319,6 @@
p->nr_sects = 0;
p->ios[0] = p->ios[1] = 0;
p->sectors[0] = p->sectors[1] = 0;
- devfs_remove("%s/part%d", disk->devfs_name, part);
sysfs_remove_link(&p->kobj, "subsystem");
if (p->holder_dir)
kobject_unregister(p->holder_dir);
@@ -350,10 +340,6 @@
p->nr_sects = len;
p->partno = part;
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor + part),
- S_IFBLK|S_IRUSR|S_IWUSR,
- "%s/part%d", disk->devfs_name, part);
-
if (isdigit(disk->kobj.name[strlen(disk->kobj.name)-1]))
snprintf(p->kobj.name,KOBJ_NAME_LEN,"%sp%d",disk->kobj.name,part);
else
@@ -423,14 +409,8 @@
disk_sysfs_add_subdirs(disk);
/* No minors to use for partitions */
- if (disk->minors == 1) {
- if (disk->devfs_name[0] != '\0')
- devfs_add_disk(disk);
+ if (disk->minors == 1)
goto exit;
- }
-
- /* always add handle for the whole disk */
- devfs_add_partitioned(disk);
/* No such device (e.g., media were just removed) */
if (!get_capacity(disk))
@@ -538,8 +518,6 @@
disk_stat_set_all(disk, 0);
disk->stamp = 0;
- devfs_remove_disk(disk);
-
kobject_uevent(&disk->kobj, KOBJ_REMOVE);
if (disk->holder_dir)
kobject_unregister(disk->holder_dir);
diff --git a/fs/partitions/devfs.c b/fs/partitions/devfs.c
deleted file mode 100644
index 3f0a780..0000000
--- a/fs/partitions/devfs.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * This tries to keep block devices away from devfs as much as possible.
- */
-#include <linux/fs.h>
-#include <linux/devfs_fs_kernel.h>
-#include <linux/vmalloc.h>
-#include <linux/genhd.h>
-#include <linux/bitops.h>
-#include <linux/mutex.h>
-
-
-struct unique_numspace {
- u32 num_free; /* Num free in bits */
- u32 length; /* Array length in bytes */
- unsigned long *bits;
- struct semaphore mutex;
-};
-
-static DEFINE_MUTEX(numspace_mutex);
-
-static int expand_numspace(struct unique_numspace *s)
-{
- u32 length;
- void *bits;
-
- if (s->length < 16)
- length = 16;
- else
- length = s->length << 1;
-
- bits = vmalloc(length);
- if (!bits)
- return -ENOMEM;
- if (s->bits) {
- memcpy(bits, s->bits, s->length);
- vfree(s->bits);
- }
-
- s->num_free = (length - s->length) << 3;
- s->bits = bits;
- memset(bits + s->length, 0, length - s->length);
- s->length = length;
-
- return 0;
-}
-
-static int alloc_unique_number(struct unique_numspace *s)
-{
- int rval = 0;
-
- mutex_lock(&numspace_mutex);
- if (s->num_free < 1)
- rval = expand_numspace(s);
- if (!rval) {
- rval = find_first_zero_bit(s->bits, s->length << 3);
- --s->num_free;
- __set_bit(rval, s->bits);
- }
- mutex_unlock(&numspace_mutex);
-
- return rval;
-}
-
-static void dealloc_unique_number(struct unique_numspace *s, int number)
-{
- int old_val;
-
- if (number >= 0) {
- mutex_lock(&numspace_mutex);
- old_val = __test_and_clear_bit(number, s->bits);
- if (old_val)
- ++s->num_free;
- mutex_unlock(&numspace_mutex);
- }
-}
-
-static struct unique_numspace disc_numspace;
-static struct unique_numspace cdrom_numspace;
-
-void devfs_add_partitioned(struct gendisk *disk)
-{
- char dirname[64], symlink[16];
-
- devfs_mk_dir(disk->devfs_name);
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
- S_IFBLK|S_IRUSR|S_IWUSR,
- "%s/disc", disk->devfs_name);
-
- disk->number = alloc_unique_number(&disc_numspace);
-
- sprintf(symlink, "discs/disc%d", disk->number);
- sprintf(dirname, "../%s", disk->devfs_name);
- devfs_mk_symlink(symlink, dirname);
-
-}
-
-void devfs_add_disk(struct gendisk *disk)
-{
- devfs_mk_bdev(MKDEV(disk->major, disk->first_minor),
- (disk->flags & GENHD_FL_CD) ?
- S_IFBLK|S_IRUGO|S_IWUGO :
- S_IFBLK|S_IRUSR|S_IWUSR,
- "%s", disk->devfs_name);
-
- if (disk->flags & GENHD_FL_CD) {
- char dirname[64], symlink[16];
-
- disk->number = alloc_unique_number(&cdrom_numspace);
-
- sprintf(symlink, "cdroms/cdrom%d", disk->number);
- sprintf(dirname, "../%s", disk->devfs_name);
- devfs_mk_symlink(symlink, dirname);
- }
-}
-
-void devfs_remove_disk(struct gendisk *disk)
-{
- if (disk->minors != 1) {
- devfs_remove("discs/disc%d", disk->number);
- dealloc_unique_number(&disc_numspace, disk->number);
- devfs_remove("%s/disc", disk->devfs_name);
- }
- if (disk->flags & GENHD_FL_CD) {
- devfs_remove("cdroms/cdrom%d", disk->number);
- dealloc_unique_number(&cdrom_numspace, disk->number);
- }
- devfs_remove(disk->devfs_name);
-}
-
-
diff --git a/fs/partitions/devfs.h b/fs/partitions/devfs.h
deleted file mode 100644
index 176118b..0000000
--- a/fs/partitions/devfs.h
+++ /dev/null
@@ -1,10 +0,0 @@
-
-#ifdef CONFIG_DEVFS_FS
-void devfs_add_disk(struct gendisk *dev);
-void devfs_add_partitioned(struct gendisk *dev);
-void devfs_remove_disk(struct gendisk *dev);
-#else
-# define devfs_add_disk(disk) do { } while (0)
-# define devfs_add_partitioned(disk) do { } while (0)
-# define devfs_remove_disk(disk) do { } while (0)
-#endif
diff --git a/include/asm-ppc/ocp.h b/include/asm-ppc/ocp.h
index 3be5d76..16dbc7d 100644
--- a/include/asm-ppc/ocp.h
+++ b/include/asm-ppc/ocp.h
@@ -26,7 +26,6 @@
#include <linux/init.h>
#include <linux/list.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/device.h>
#include <asm/mmu.h>
diff --git a/include/linux/compat_ioctl.h b/include/linux/compat_ioctl.h
index 917d62e..269d000 100644
--- a/include/linux/compat_ioctl.h
+++ b/include/linux/compat_ioctl.h
@@ -567,11 +567,6 @@
COMPATIBLE_IOCTL(AUTOFS_IOC_ASKREGHOST)
COMPATIBLE_IOCTL(AUTOFS_IOC_TOGGLEREGHOST)
COMPATIBLE_IOCTL(AUTOFS_IOC_ASKUMOUNT)
-/* DEVFS */
-COMPATIBLE_IOCTL(DEVFSDIOC_GET_PROTO_REV)
-COMPATIBLE_IOCTL(DEVFSDIOC_SET_EVENT_MASK)
-COMPATIBLE_IOCTL(DEVFSDIOC_RELEASE_EVENT_QUEUE)
-COMPATIBLE_IOCTL(DEVFSDIOC_SET_DEBUG_MASK)
/* Raw devices */
COMPATIBLE_IOCTL(RAW_SETBIND)
COMPATIBLE_IOCTL(RAW_GETBIND)
diff --git a/include/linux/devfs_fs.h b/include/linux/devfs_fs.h
deleted file mode 100644
index de236f4..0000000
--- a/include/linux/devfs_fs.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef _LINUX_DEVFS_FS_H
-#define _LINUX_DEVFS_FS_H
-
-#include <linux/ioctl.h>
-
-#define DEVFSD_PROTOCOL_REVISION_KERNEL 5
-
-#define DEVFSD_IOCTL_BASE 'd'
-
-/* These are the various ioctls */
-#define DEVFSDIOC_GET_PROTO_REV _IOR(DEVFSD_IOCTL_BASE, 0, int)
-#define DEVFSDIOC_SET_EVENT_MASK _IOW(DEVFSD_IOCTL_BASE, 2, int)
-#define DEVFSDIOC_RELEASE_EVENT_QUEUE _IOW(DEVFSD_IOCTL_BASE, 3, int)
-#define DEVFSDIOC_SET_DEBUG_MASK _IOW(DEVFSD_IOCTL_BASE, 4, int)
-
-#define DEVFSD_NOTIFY_REGISTERED 0
-#define DEVFSD_NOTIFY_UNREGISTERED 1
-#define DEVFSD_NOTIFY_ASYNC_OPEN 2
-#define DEVFSD_NOTIFY_CLOSE 3
-#define DEVFSD_NOTIFY_LOOKUP 4
-#define DEVFSD_NOTIFY_CHANGE 5
-#define DEVFSD_NOTIFY_CREATE 6
-#define DEVFSD_NOTIFY_DELETE 7
-
-#define DEVFS_PATHLEN 1024 /* Never change this otherwise the
- binary interface will change */
-
-struct devfsd_notify_struct { /* Use native C types to ensure same types in kernel and user space */
- unsigned int type; /* DEVFSD_NOTIFY_* value */
- unsigned int mode; /* Mode of the inode or device entry */
- unsigned int major; /* Major number of device entry */
- unsigned int minor; /* Minor number of device entry */
- unsigned int uid; /* Uid of process, inode or device entry */
- unsigned int gid; /* Gid of process, inode or device entry */
- unsigned int overrun_count; /* Number of lost events */
- unsigned int namelen; /* Number of characters not including '\0' */
- /* The device name MUST come last */
- char devname[DEVFS_PATHLEN]; /* This will be '\0' terminated */
-};
-
-#endif /* _LINUX_DEVFS_FS_H */
diff --git a/include/linux/devfs_fs_kernel.h b/include/linux/devfs_fs_kernel.h
deleted file mode 100644
index 0d74a6f..0000000
--- a/include/linux/devfs_fs_kernel.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#ifndef _LINUX_DEVFS_FS_KERNEL_H
-#define _LINUX_DEVFS_FS_KERNEL_H
-
-#include <linux/fs.h>
-#include <linux/spinlock.h>
-#include <linux/types.h>
-
-#include <asm/semaphore.h>
-
-#define DEVFS_SUPER_MAGIC 0x1373
-
-#ifdef CONFIG_DEVFS_FS
-extern int devfs_mk_bdev(dev_t dev, umode_t mode, const char *fmt, ...)
- __attribute__ ((format(printf, 3, 4)));
-extern int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...)
- __attribute__ ((format(printf, 3, 4)));
-extern int devfs_mk_symlink(const char *name, const char *link);
-extern int devfs_mk_dir(const char *fmt, ...)
- __attribute__ ((format(printf, 1, 2)));
-extern void devfs_remove(const char *fmt, ...)
- __attribute__ ((format(printf, 1, 2)));
-extern int devfs_register_tape(const char *name);
-extern void devfs_unregister_tape(int num);
-extern void mount_devfs_fs(void);
-#else /* CONFIG_DEVFS_FS */
-static inline int devfs_mk_bdev(dev_t dev, umode_t mode, const char *fmt, ...)
-{
- return 0;
-}
-static inline int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...)
-{
- return 0;
-}
-static inline int devfs_mk_symlink(const char *name, const char *link)
-{
- return 0;
-}
-static inline int devfs_mk_dir(const char *fmt, ...)
-{
- return 0;
-}
-static inline void devfs_remove(const char *fmt, ...)
-{
-}
-static inline int devfs_register_tape(const char *name)
-{
- return -1;
-}
-static inline void devfs_unregister_tape(int num)
-{
-}
-static inline void mount_devfs_fs(void)
-{
- return;
-}
-#endif /* CONFIG_DEVFS_FS */
-#endif /* _LINUX_DEVFS_FS_KERNEL_H */
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 07a08e9..b45928f 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -380,7 +380,6 @@
#include <linux/tty.h>
#include <linux/device.h>
#include <linux/workqueue.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/notifier.h>
#include <linux/list.h>
#include <asm/io.h>
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 3498a0c..e4af57e 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -112,8 +112,6 @@
sector_t capacity;
int flags;
- char devfs_name[64]; /* devfs crap */
- int number; /* more of the same */
struct device *driverfs_dev;
struct kobject kobj;
struct kobject *holder_dir;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 0c10016..285316c 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -552,7 +552,6 @@
struct hd_driveid *id; /* drive model identification info */
struct proc_dir_entry *proc; /* /proc/ide/ directory entry */
struct ide_settings_s *settings;/* /proc/ide/ drive settings */
- char devfs_name[64]; /* devfs crap */
struct hwif_s *hwif; /* actually (ide_hwif_t *) */
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index 5b584da..b03cfb9 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -40,7 +40,6 @@
struct list_head list;
struct device *dev;
struct class_device *class;
- char devfs_name[64];
};
extern int misc_register(struct miscdevice * misc);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 951c4e8..fc1104a 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -336,7 +336,6 @@
struct module *owner;
const char *driver_name;
const char *dev_name;
- const char *devfs_name;
int major;
int minor;
int nr;
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index b368b29..58c961c 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -157,7 +157,6 @@
struct cdev cdev;
struct module *owner;
const char *driver_name;
- const char *devfs_name;
const char *name;
int name_base; /* offset of printed name */
int major; /* major device number */
@@ -242,8 +241,15 @@
* is also a promise, if the above case is true, not to signal
* overruns, either.)
*
- * TTY_DRIVER_NO_DEVFS --- if set, do not create devfs entries. This
- * is only used by tty_register_driver().
+ * TTY_DRIVER_DYNAMIC_DEV --- if set, the individual tty devices need
+ * to be registered with a call to tty_register_driver() when the
+ * device is found in the system and unregistered with a call to
+ * tty_unregister_device() so the devices will be show up
+ * properly in sysfs. If not set, driver->num entries will be
+ * created by the tty core in sysfs when tty_register_driver() is
+ * called. This is to be used by drivers that have tty devices
+ * that can appear and disappear while the main tty driver is
+ * registered with the tty core.
*
* TTY_DRIVER_DEVPTS_MEM -- don't use the standard arrays, instead
* use dynamic memory keyed through the devpts filesystem. This
@@ -252,7 +258,7 @@
#define TTY_DRIVER_INSTALLED 0x0001
#define TTY_DRIVER_RESET_TERMIOS 0x0002
#define TTY_DRIVER_REAL_RAW 0x0004
-#define TTY_DRIVER_NO_DEVFS 0x0008
+#define TTY_DRIVER_DYNAMIC_DEV 0x0008
#define TTY_DRIVER_DEVPTS_MEM 0x0010
/* tty driver types */
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index a1b4731..62dae1a 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -314,7 +314,6 @@
/* for videodev.c intenal usage -- please don't touch */
int users; /* video_exclusive_{open|close} ... */
struct mutex lock; /* ... helper function uses these */
- char devfs_name[64]; /* devfs */
struct class_device class_dev; /* sysfs */
};
diff --git a/init/Makefile b/init/Makefile
index a230007..633a268 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -6,7 +6,6 @@
obj-$(CONFIG_GENERIC_CALIBRATE_DELAY) += calibrate.o
mounts-y := do_mounts.o
-mounts-$(CONFIG_DEVFS_FS) += do_mounts_devfs.o
mounts-$(CONFIG_BLK_DEV_RAM) += do_mounts_rd.o
mounts-$(CONFIG_BLK_DEV_INITRD) += do_mounts_initrd.o
mounts-$(CONFIG_BLK_DEV_MD) += do_mounts_md.o
diff --git a/init/do_mounts.c b/init/do_mounts.c
index 21b3b8f..94aeec7 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -325,7 +325,7 @@
{
void *data = nfs_root_data();
- create_dev("/dev/root", ROOT_DEV, NULL);
+ create_dev("/dev/root", ROOT_DEV);
if (data &&
do_mount_root("/dev/root", "nfs", root_mountflags, data) == 0)
return 1;
@@ -386,7 +386,7 @@
change_floppy("root floppy");
}
#endif
- create_dev("/dev/root", ROOT_DEV, root_device_name);
+ create_dev("/dev/root", ROOT_DEV);
mount_block_root("/dev/root", root_mountflags);
}
@@ -397,8 +397,6 @@
{
int is_floppy;
- mount_devfs();
-
if (root_delay) {
printk(KERN_INFO "Waiting %dsec before mounting root device...\n",
root_delay);
@@ -428,10 +426,8 @@
mount_root();
out:
- umount_devfs("/dev");
sys_mount(".", "/", NULL, MS_MOVE, NULL);
sys_chroot(".");
security_sb_post_mountroot();
- mount_devfs_fs ();
}
diff --git a/init/do_mounts.h b/init/do_mounts.h
index e0a7ac9..e7f2e7f 100644
--- a/init/do_mounts.h
+++ b/init/do_mounts.h
@@ -1,6 +1,5 @@
#include <linux/config.h>
#include <linux/kernel.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/init.h>
#include <linux/syscalls.h>
#include <linux/unistd.h>
@@ -15,25 +14,12 @@
extern int root_mountflags;
extern char *root_device_name;
-#ifdef CONFIG_DEVFS_FS
-
-void mount_devfs(void);
-void umount_devfs(char *path);
-int create_dev(char *name, dev_t dev, char *devfs_name);
-
-#else
-
-static inline void mount_devfs(void) {}
-static inline void umount_devfs(const char *path) {}
-
-static inline int create_dev(char *name, dev_t dev, char *devfs_name)
+static inline int create_dev(char *name, dev_t dev)
{
sys_unlink(name);
return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
}
-#endif
-
#if BITS_PER_LONG == 32
static inline u32 bstat(char *name)
{
diff --git a/init/do_mounts_devfs.c b/init/do_mounts_devfs.c
deleted file mode 100644
index cc52647..0000000
--- a/init/do_mounts_devfs.c
+++ /dev/null
@@ -1,137 +0,0 @@
-
-#include <linux/kernel.h>
-#include <linux/dirent.h>
-#include <linux/string.h>
-
-#include "do_mounts.h"
-
-void __init mount_devfs(void)
-{
- sys_mount("devfs", "/dev", "devfs", 0, NULL);
-}
-
-void __init umount_devfs(char *path)
-{
- sys_umount(path, 0);
-}
-
-/*
- * If the dir will fit in *buf, return its length. If it won't fit, return
- * zero. Return -ve on error.
- */
-static int __init do_read_dir(int fd, void *buf, int len)
-{
- long bytes, n;
- char *p = buf;
- sys_lseek(fd, 0, 0);
-
- for (bytes = 0; bytes < len; bytes += n) {
- n = sys_getdents64(fd, (struct linux_dirent64 *)(p + bytes),
- len - bytes);
- if (n < 0)
- return n;
- if (n == 0)
- return bytes;
- }
- return 0;
-}
-
-/*
- * Try to read all of a directory. Returns the contents at *p, which
- * is kmalloced memory. Returns the number of bytes read at *len. Returns
- * NULL on error.
- */
-static void * __init read_dir(char *path, int *len)
-{
- int size;
- int fd = sys_open(path, 0, 0);
-
- *len = 0;
- if (fd < 0)
- return NULL;
-
- for (size = 1 << 9; size <= (PAGE_SIZE << MAX_ORDER); size <<= 1) {
- void *p = kmalloc(size, GFP_KERNEL);
- int n;
- if (!p)
- break;
- n = do_read_dir(fd, p, size);
- if (n > 0) {
- sys_close(fd);
- *len = n;
- return p;
- }
- kfree(p);
- if (n == -EINVAL)
- continue; /* Try a larger buffer */
- if (n < 0)
- break;
- }
- sys_close(fd);
- return NULL;
-}
-
-/*
- * recursively scan <path>, looking for a device node of type <dev>
- */
-static int __init find_in_devfs(char *path, unsigned dev)
-{
- char *end = path + strlen(path);
- int rest = path + 64 - end;
- int size;
- char *p = read_dir(path, &size);
- char *s;
-
- if (!p)
- return -1;
- for (s = p; s < p + size; s += ((struct linux_dirent64 *)s)->d_reclen) {
- struct linux_dirent64 *d = (struct linux_dirent64 *)s;
- if (strlen(d->d_name) + 2 > rest)
- continue;
- switch (d->d_type) {
- case DT_BLK:
- sprintf(end, "/%s", d->d_name);
- if (bstat(path) != dev)
- break;
- kfree(p);
- return 0;
- case DT_DIR:
- if (strcmp(d->d_name, ".") == 0)
- break;
- if (strcmp(d->d_name, "..") == 0)
- break;
- sprintf(end, "/%s", d->d_name);
- if (find_in_devfs(path, dev) < 0)
- break;
- kfree(p);
- return 0;
- }
- }
- kfree(p);
- return -1;
-}
-
-/*
- * create a device node called <name> which points to
- * <devfs_name> if possible, otherwise find a device node
- * which matches <dev> and make <name> a symlink pointing to it.
- */
-int __init create_dev(char *name, dev_t dev, char *devfs_name)
-{
- char path[64];
-
- sys_unlink(name);
- if (devfs_name && devfs_name[0]) {
- if (strncmp(devfs_name, "/dev/", 5) == 0)
- devfs_name += 5;
- sprintf(path, "/dev/%s", devfs_name);
- if (sys_access(path, 0) == 0)
- return sys_symlink(devfs_name, name);
- }
- if (!dev)
- return -1;
- strcpy(path, "/dev");
- if (find_in_devfs(path, new_encode_dev(dev)) < 0)
- return -1;
- return sys_symlink(path + 5, name);
-}
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index 405f903..a06f037 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -44,7 +44,7 @@
int pid;
real_root_dev = new_encode_dev(ROOT_DEV);
- create_dev("/dev/root.old", Root_RAM0, NULL);
+ create_dev("/dev/root.old", Root_RAM0);
/* mount initrd on rootfs' /root */
mount_block_root("/dev/root.old", root_mountflags & ~MS_RDONLY);
sys_mkdir("/old", 0700);
@@ -54,7 +54,6 @@
sys_chdir("/root");
sys_mount(".", "/", NULL, MS_MOVE, NULL);
sys_chroot(".");
- mount_devfs_fs ();
current->flags |= PF_NOFREEZE;
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
@@ -71,7 +70,6 @@
sys_chroot(".");
sys_close(old_fd);
sys_close(root_fd);
- umount_devfs("/old/dev");
if (new_decode_dev(real_root_dev) == Root_RAM0) {
sys_chdir("/old");
@@ -107,7 +105,7 @@
int __init initrd_load(void)
{
if (mount_initrd) {
- create_dev("/dev/ram", Root_RAM0, NULL);
+ create_dev("/dev/ram", Root_RAM0);
/*
* Load the initrd data into /dev/ram0. Execute it as initrd
* unless /dev/ram0 is supposed to be our actual root device,
diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index f6f3680..2429e1b 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -125,19 +125,18 @@
int err = 0;
char *devname;
mdu_disk_info_t dinfo;
- char name[16], devfs_name[16];
+ char name[16];
minor = md_setup_args[ent].minor;
partitioned = md_setup_args[ent].partitioned;
devname = md_setup_args[ent].device_names;
sprintf(name, "/dev/md%s%d", partitioned?"_d":"", minor);
- sprintf(devfs_name, "/dev/md/%s%d", partitioned?"d":"", minor);
if (partitioned)
dev = MKDEV(mdp_major, minor << MdpMinorShift);
else
dev = MKDEV(MD_MAJOR, minor);
- create_dev(name, dev, devfs_name);
+ create_dev(name, dev);
for (i = 0; i < MD_SB_DISKS && devname != 0; i++) {
char *p;
char comp_name[64];
@@ -272,7 +271,7 @@
void __init md_run_setup(void)
{
- create_dev("/dev/md0", MKDEV(MD_MAJOR, 0), "md/0");
+ create_dev("/dev/md0", MKDEV(MD_MAJOR, 0));
if (raid_noautodetect)
printk(KERN_INFO "md: Skipping autodetection of RAID arrays. (raid=noautodetect)\n");
else {
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index c2683fc..ed652f4 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -262,8 +262,8 @@
{
if (rd_prompt)
change_floppy("root floppy disk to be loaded into RAM disk");
- create_dev("/dev/root", ROOT_DEV, root_device_name);
- create_dev("/dev/ram", MKDEV(RAMDISK_MAJOR, n), NULL);
+ create_dev("/dev/root", ROOT_DEV);
+ create_dev("/dev/ram", MKDEV(RAMDISK_MAJOR, n));
return rd_load_image("/dev/root");
}
diff --git a/init/main.c b/init/main.c
index 0d57f6c..bce0eb7 100644
--- a/init/main.c
+++ b/init/main.c
@@ -15,7 +15,6 @@
#include <linux/types.h>
#include <linux/module.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/kernel.h>
#include <linux/syscalls.h>
#include <linux/string.h>
diff --git a/mm/shmem.c b/mm/shmem.c
index ea64c07..b14ff81 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -26,7 +26,6 @@
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/mman.h>
@@ -2252,9 +2251,7 @@
printk(KERN_ERR "Could not register tmpfs\n");
goto out2;
}
-#ifdef CONFIG_TMPFS
- devfs_mk_dir("shm");
-#endif
+
shm_mnt = vfs_kern_mount(&tmpfs_fs_type, MS_NOUSER,
tmpfs_fs_type.name, NULL);
if (IS_ERR(shm_mnt)) {
diff --git a/mm/tiny-shmem.c b/mm/tiny-shmem.c
index f9d6a9c..5f2cbf0 100644
--- a/mm/tiny-shmem.c
+++ b/mm/tiny-shmem.c
@@ -12,7 +12,6 @@
#include <linux/fs.h>
#include <linux/init.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/vfs.h>
#include <linux/mount.h>
#include <linux/file.h>
@@ -33,9 +32,6 @@
{
BUG_ON(register_filesystem(&tmpfs_fs_type) != 0);
-#ifdef CONFIG_TMPFS
- devfs_mk_dir("shm");
-#endif
shm_mnt = kern_mount(&tmpfs_fs_type);
BUG_ON(IS_ERR(shm_mnt));
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index b81fad8..b105a71 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -1021,13 +1021,12 @@
rfcomm_tty_driver->owner = THIS_MODULE;
rfcomm_tty_driver->driver_name = "rfcomm";
- rfcomm_tty_driver->devfs_name = "bluetooth/rfcomm/";
rfcomm_tty_driver->name = "rfcomm";
rfcomm_tty_driver->major = RFCOMM_TTY_MAJOR;
rfcomm_tty_driver->minor_start = RFCOMM_TTY_MINOR;
rfcomm_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
rfcomm_tty_driver->subtype = SERIAL_TYPE_NORMAL;
- rfcomm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_NO_DEVFS;
+ rfcomm_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
rfcomm_tty_driver->init_termios = tty_std_termios;
rfcomm_tty_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
tty_set_operations(rfcomm_tty_driver, &rfcomm_ops);
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
index 6f20b42..b592c4b 100644
--- a/net/irda/ircomm/ircomm_tty.c
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -124,7 +124,6 @@
driver->owner = THIS_MODULE;
driver->driver_name = "ircomm";
driver->name = "ircomm";
- driver->devfs_name = "ircomm";
driver->major = IRCOMM_TTY_MAJOR;
driver->minor_start = IRCOMM_TTY_MINOR;
driver->type = TTY_DRIVER_TYPE_SERIAL;
diff --git a/net/irda/irnet/irnet.h b/net/irda/irnet/irnet.h
index e4fe1e8..ad6caba 100644
--- a/net/irda/irnet/irnet.h
+++ b/net/irda/irnet/irnet.h
@@ -244,7 +244,6 @@
#include <linux/skbuff.h>
#include <linux/tty.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/netdevice.h>
#include <linux/miscdevice.h>
#include <linux/poll.h>
diff --git a/sound/core/info.c b/sound/core/info.c
index 10c1772..340332c 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -29,7 +29,6 @@
#include <sound/info.h>
#include <sound/version.h>
#include <linux/proc_fs.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/mutex.h>
#include <stdarg.h>
diff --git a/sound/core/sound.c b/sound/core/sound.c
index cd86272..264f2ef 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -32,7 +32,6 @@
#include <sound/control.h>
#include <sound/initval.h>
#include <linux/kmod.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/mutex.h>
#define SNDRV_OS_MINORS 256
@@ -42,7 +41,6 @@
EXPORT_SYMBOL(snd_major);
static int cards_limit = 1;
-static int device_mode = S_IFCHR | S_IRUGO | S_IWUGO;
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("Advanced Linux Sound Architecture driver for soundcards.");
@@ -51,10 +49,6 @@
MODULE_PARM_DESC(major, "Major # for sound driver.");
module_param(cards_limit, int, 0444);
MODULE_PARM_DESC(cards_limit, "Count of auto-loadable soundcards.");
-#ifdef CONFIG_DEVFS_FS
-module_param(device_mode, int, 0444);
-MODULE_PARM_DESC(device_mode, "Device file permission mask for devfs.");
-#endif
MODULE_ALIAS_CHARDEV_MAJOR(CONFIG_SND_MAJOR);
/* this one holds the actual max. card number currently available.
@@ -273,8 +267,6 @@
return minor;
}
snd_minors[minor] = preg;
- if (type != SNDRV_DEVICE_TYPE_CONTROL || preg->card >= cards_limit)
- devfs_mk_cdev(MKDEV(major, minor), S_IFCHR | device_mode, "snd/%s", name);
if (card)
device = card->dev;
class_device_create(sound_class, NULL, MKDEV(major, minor), device, "%s", name);
@@ -314,9 +306,6 @@
return -EINVAL;
}
- if (mptr->type != SNDRV_DEVICE_TYPE_CONTROL ||
- mptr->card >= cards_limit) /* created in sound.c */
- devfs_remove("snd/%s", mptr->name);
class_device_destroy(sound_class, MKDEV(major, minor));
snd_minors[minor] = NULL;
@@ -411,24 +400,17 @@
static int __init alsa_sound_init(void)
{
- short controlnum;
-
snd_major = major;
snd_ecards_limit = cards_limit;
- devfs_mk_dir("snd");
if (register_chrdev(major, "alsa", &snd_fops)) {
snd_printk(KERN_ERR "unable to register native major device number %d\n", major);
- devfs_remove("snd");
return -EIO;
}
if (snd_info_init() < 0) {
unregister_chrdev(major, "alsa");
- devfs_remove("snd");
return -ENOMEM;
}
snd_info_minor_register();
- for (controlnum = 0; controlnum < cards_limit; controlnum++)
- devfs_mk_cdev(MKDEV(major, controlnum<<5), S_IFCHR | device_mode, "snd/controlC%d", controlnum);
#ifndef MODULE
printk(KERN_INFO "Advanced Linux Sound Architecture Driver Version " CONFIG_SND_VERSION CONFIG_SND_DATE ".\n");
#endif
@@ -437,16 +419,10 @@
static void __exit alsa_sound_exit(void)
{
- short controlnum;
-
- for (controlnum = 0; controlnum < cards_limit; controlnum++)
- devfs_remove("snd/controlC%d", controlnum);
-
snd_info_minor_unregister();
snd_info_done();
if (unregister_chrdev(major, "alsa") != 0)
snd_printk(KERN_ERR "unable to unregister major device number %d\n", major);
- devfs_remove("snd");
}
module_init(alsa_sound_init)
diff --git a/sound/oss/soundcard.c b/sound/oss/soundcard.c
index d33bb46..a332899 100644
--- a/sound/oss/soundcard.c
+++ b/sound/oss/soundcard.c
@@ -38,7 +38,6 @@
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/ioport.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/major.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
@@ -564,9 +563,6 @@
sound_dmap_flag = (dmabuf > 0 ? 1 : 0);
for (i = 0; i < sizeof (dev_list) / sizeof *dev_list; i++) {
- devfs_mk_cdev(MKDEV(SOUND_MAJOR, dev_list[i].minor),
- S_IFCHR | dev_list[i].mode,
- "sound/%s", dev_list[i].name);
class_device_create(sound_class, NULL,
MKDEV(SOUND_MAJOR, dev_list[i].minor),
NULL, "%s", dev_list[i].name);
@@ -574,15 +570,10 @@
if (!dev_list[i].num)
continue;
- for (j = 1; j < *dev_list[i].num; j++) {
- devfs_mk_cdev(MKDEV(SOUND_MAJOR,
- dev_list[i].minor + (j*0x10)),
- S_IFCHR | dev_list[i].mode,
- "sound/%s%d", dev_list[i].name, j);
+ for (j = 1; j < *dev_list[i].num; j++)
class_device_create(sound_class, NULL,
MKDEV(SOUND_MAJOR, dev_list[i].minor + (j*0x10)),
NULL, "%s%d", dev_list[i].name, j);
- }
}
if (sound_nblocks >= 1024)
@@ -596,14 +587,11 @@
int i, j;
for (i = 0; i < sizeof (dev_list) / sizeof *dev_list; i++) {
- devfs_remove("sound/%s", dev_list[i].name);
class_device_destroy(sound_class, MKDEV(SOUND_MAJOR, dev_list[i].minor));
if (!dev_list[i].num)
continue;
- for (j = 1; j < *dev_list[i].num; j++) {
- devfs_remove("sound/%s%d", dev_list[i].name, j);
+ for (j = 1; j < *dev_list[i].num; j++)
class_device_destroy(sound_class, MKDEV(SOUND_MAJOR, dev_list[i].minor + (j*0x10)));
- }
}
unregister_sound_special(1);
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 6f84972..7535ec8 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -44,7 +44,6 @@
#include <linux/sound.h>
#include <linux/major.h>
#include <linux/kmod.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/device.h>
#define SOUND_STEP 16
@@ -172,8 +171,6 @@
else
sprintf(s->name, "sound/%s%d", name, r / SOUND_STEP);
- devfs_mk_cdev(MKDEV(SOUND_MAJOR, s->unit_minor),
- S_IFCHR | mode, s->name);
class_device_create(sound_class, NULL, MKDEV(SOUND_MAJOR, s->unit_minor),
dev, s->name+6);
return r;
@@ -197,7 +194,6 @@
p = __sound_remove_unit(list, unit);
spin_unlock(&sound_loader_lock);
if (p) {
- devfs_remove(p->name);
class_device_destroy(sound_class, MKDEV(SOUND_MAJOR, p->unit_minor));
kfree(p);
}
@@ -570,7 +566,6 @@
/* We have nothing to really do here - we know the lists must be
empty */
unregister_chrdev(SOUND_MAJOR, "sound");
- devfs_remove("sound");
class_destroy(sound_class);
}
@@ -580,7 +575,6 @@
printk(KERN_ERR "soundcore: sound device already in use.\n");
return -EBUSY;
}
- devfs_mk_dir ("sound");
sound_class = class_create(THIS_MODULE, "sound");
if (IS_ERR(sound_class))
return PTR_ERR(sound_class);
