David Howells | 07f3f05 | 2006-09-30 20:52:18 +0200 | [diff] [blame] | 1 | /* fs/ internal definitions |
| 2 | * |
| 3 | * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. |
| 4 | * Written by David Howells (dhowells@redhat.com) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | */ |
| 11 | |
Nick Piggin | 99b7db7 | 2010-08-18 04:37:39 +1000 | [diff] [blame] | 12 | #include <linux/lglock.h> |
| 13 | |
Andrew Morton | 5e6d12b | 2006-08-31 12:55:23 +0200 | [diff] [blame] | 14 | struct super_block; |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 15 | struct linux_binprm; |
Al Viro | 3e93cd6 | 2009-03-29 19:00:13 -0400 | [diff] [blame] | 16 | struct path; |
Andrew Morton | 5e6d12b | 2006-08-31 12:55:23 +0200 | [diff] [blame] | 17 | |
David Howells | 07f3f05 | 2006-09-30 20:52:18 +0200 | [diff] [blame] | 18 | /* |
| 19 | * block_dev.c |
| 20 | */ |
David Howells | 9361401 | 2006-09-30 20:45:40 +0200 | [diff] [blame] | 21 | #ifdef CONFIG_BLOCK |
David Howells | 07f3f05 | 2006-09-30 20:52:18 +0200 | [diff] [blame] | 22 | extern struct super_block *blockdev_superblock; |
| 23 | extern void __init bdev_cache_init(void); |
| 24 | |
Andrew Morton | 5e6d12b | 2006-08-31 12:55:23 +0200 | [diff] [blame] | 25 | static inline int sb_is_blkdev_sb(struct super_block *sb) |
| 26 | { |
| 27 | return sb == blockdev_superblock; |
| 28 | } |
David Howells | 9361401 | 2006-09-30 20:45:40 +0200 | [diff] [blame] | 29 | |
Jan Kara | 5cee581 | 2009-04-27 16:43:51 +0200 | [diff] [blame] | 30 | extern int __sync_blockdev(struct block_device *bdev, int wait); |
| 31 | |
Andrew Morton | 5e6d12b | 2006-08-31 12:55:23 +0200 | [diff] [blame] | 32 | #else |
| 33 | static inline void bdev_cache_init(void) |
| 34 | { |
| 35 | } |
| 36 | |
| 37 | static inline int sb_is_blkdev_sb(struct super_block *sb) |
| 38 | { |
| 39 | return 0; |
| 40 | } |
Jan Kara | 5cee581 | 2009-04-27 16:43:51 +0200 | [diff] [blame] | 41 | |
| 42 | static inline int __sync_blockdev(struct block_device *bdev, int wait) |
| 43 | { |
| 44 | return 0; |
| 45 | } |
David Howells | 9361401 | 2006-09-30 20:45:40 +0200 | [diff] [blame] | 46 | #endif |
David Howells | 7b0de42 | 2006-08-29 19:06:07 +0100 | [diff] [blame] | 47 | |
David Howells | 07f3f05 | 2006-09-30 20:52:18 +0200 | [diff] [blame] | 48 | /* |
| 49 | * char_dev.c |
| 50 | */ |
| 51 | extern void __init chrdev_init(void); |
| 52 | |
| 53 | /* |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 54 | * exec.c |
| 55 | */ |
Al Viro | 498052b | 2009-03-30 07:20:30 -0400 | [diff] [blame] | 56 | extern int check_unsafe_exec(struct linux_binprm *); |
David Howells | a6f76f2 | 2008-11-14 10:39:24 +1100 | [diff] [blame] | 57 | |
| 58 | /* |
David Howells | 07f3f05 | 2006-09-30 20:52:18 +0200 | [diff] [blame] | 59 | * namespace.c |
| 60 | */ |
| 61 | extern int copy_mount_options(const void __user *, unsigned long *); |
Vegard Nossum | eca6f53 | 2009-09-18 13:05:45 -0700 | [diff] [blame] | 62 | extern int copy_mount_string(const void __user *, char **); |
Al Viro | 6d59e7f | 2008-03-22 15:48:17 -0400 | [diff] [blame] | 63 | |
| 64 | extern void free_vfsmnt(struct vfsmount *); |
| 65 | extern struct vfsmount *alloc_vfsmnt(const char *); |
Nick Piggin | b3e19d9 | 2011-01-07 17:50:11 +1100 | [diff] [blame] | 66 | extern unsigned int mnt_get_count(struct vfsmount *mnt); |
Al Viro | 6d59e7f | 2008-03-22 15:48:17 -0400 | [diff] [blame] | 67 | extern struct vfsmount *__lookup_mnt(struct vfsmount *, struct dentry *, int); |
| 68 | extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *, |
| 69 | struct vfsmount *); |
| 70 | extern void release_mounts(struct list_head *); |
| 71 | extern void umount_tree(struct vfsmount *, int, struct list_head *); |
| 72 | extern struct vfsmount *copy_tree(struct vfsmount *, struct dentry *, int); |
Al Viro | 19a167a | 2011-01-17 01:35:23 -0500 | [diff] [blame] | 73 | extern int finish_automount(struct vfsmount *, struct path *); |
Al Viro | 6d59e7f | 2008-03-22 15:48:17 -0400 | [diff] [blame] | 74 | |
Al Viro | f03c659 | 2011-01-14 22:30:21 -0500 | [diff] [blame] | 75 | extern void mnt_make_longterm(struct vfsmount *); |
| 76 | extern void mnt_make_shortterm(struct vfsmount *); |
| 77 | |
Al Viro | 6d59e7f | 2008-03-22 15:48:17 -0400 | [diff] [blame] | 78 | extern void __init mnt_init(void); |
Al Viro | 3e93cd6 | 2009-03-29 19:00:13 -0400 | [diff] [blame] | 79 | |
Nick Piggin | 99b7db7 | 2010-08-18 04:37:39 +1000 | [diff] [blame] | 80 | DECLARE_BRLOCK(vfsmount_lock); |
| 81 | |
Al Viro | 47cd813 | 2010-02-05 02:01:14 -0500 | [diff] [blame] | 82 | |
Al Viro | 3e93cd6 | 2009-03-29 19:00:13 -0400 | [diff] [blame] | 83 | /* |
| 84 | * fs_struct.c |
| 85 | */ |
| 86 | extern void chroot_fs_refs(struct path *, struct path *); |
npiggin@suse.de | 864d7c4 | 2009-04-26 20:25:56 +1000 | [diff] [blame] | 87 | |
| 88 | /* |
| 89 | * file_table.c |
| 90 | */ |
Nick Piggin | d996b62 | 2010-08-18 04:37:36 +1000 | [diff] [blame] | 91 | extern void file_sb_list_add(struct file *f, struct super_block *sb); |
| 92 | extern void file_sb_list_del(struct file *f); |
npiggin@suse.de | 864d7c4 | 2009-04-26 20:25:56 +1000 | [diff] [blame] | 93 | extern void mark_files_ro(struct super_block *); |
Eric Paris | e81e3f4 | 2009-12-04 15:47:36 -0500 | [diff] [blame] | 94 | extern struct file *get_empty_filp(void); |
Al Viro | 62c6943 | 2009-05-07 03:12:29 -0400 | [diff] [blame] | 95 | |
| 96 | /* |
| 97 | * super.c |
| 98 | */ |
| 99 | extern int do_remount_sb(struct super_block *, int, void *, int); |
Al Viro | 35cf7ba | 2010-03-22 21:13:53 -0400 | [diff] [blame] | 100 | extern void __put_super(struct super_block *sb); |
| 101 | extern void put_super(struct super_block *sb); |
Al Viro | 482928d | 2009-12-19 10:10:39 -0500 | [diff] [blame] | 102 | |
| 103 | /* |
| 104 | * open.c |
| 105 | */ |
| 106 | struct nameidata; |
| 107 | extern struct file *nameidata_to_filp(struct nameidata *); |
| 108 | extern void release_open_intent(struct nameidata *); |
Al Viro | a8dade3 | 2010-10-24 11:13:10 -0400 | [diff] [blame] | 109 | |
| 110 | /* |
| 111 | * inode.c |
| 112 | */ |
Dave Chinner | cffbc8a | 2010-10-23 05:03:02 -0400 | [diff] [blame] | 113 | extern int get_nr_dirty_inodes(void); |
Al Viro | a4cdbd8 | 2010-10-29 05:49:13 -0400 | [diff] [blame] | 114 | extern void evict_inodes(struct super_block *); |
NeilBrown | 93b270f | 2011-02-24 17:25:47 +1100 | [diff] [blame] | 115 | extern int invalidate_inodes(struct super_block *, bool); |