Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | b83bd13 | 2006-06-09 16:48:30 +1000 | [diff] [blame] | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
| 18 | #ifndef __XFS_VFS_H__ |
| 19 | #define __XFS_VFS_H__ |
| 20 | |
| 21 | #include <linux/vfs.h> |
| 22 | #include "xfs_fs.h" |
| 23 | |
Christoph Hellwig | 0a74cd1 | 2007-08-29 11:53:12 +1000 | [diff] [blame] | 24 | struct inode; |
Nathan Scott | 8285fb5 | 2006-06-09 17:07:12 +1000 | [diff] [blame] | 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | struct fid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | struct cred; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | struct seq_file; |
| 29 | struct super_block; |
Christoph Hellwig | 739bfb2 | 2007-08-29 10:58:01 +1000 | [diff] [blame] | 30 | struct xfs_inode; |
Christoph Hellwig | 745f691 | 2007-08-30 17:20:39 +1000 | [diff] [blame] | 31 | struct xfs_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | struct xfs_mount_args; |
| 33 | |
Nathan Scott | 8285fb5 | 2006-06-09 17:07:12 +1000 | [diff] [blame] | 34 | typedef struct kstatfs bhv_statvfs_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | |
Nathan Scott | b83bd13 | 2006-06-09 16:48:30 +1000 | [diff] [blame] | 36 | typedef struct bhv_vfs_sync_work { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | struct list_head w_list; |
Christoph Hellwig | 7439449 | 2007-08-30 17:21:22 +1000 | [diff] [blame] | 38 | struct xfs_mount *w_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | void *w_data; /* syncer routine argument */ |
Christoph Hellwig | 7439449 | 2007-08-30 17:21:22 +1000 | [diff] [blame] | 40 | void (*w_syncer)(struct xfs_mount *, void *); |
Nathan Scott | b83bd13 | 2006-06-09 16:48:30 +1000 | [diff] [blame] | 41 | } bhv_vfs_sync_work_t; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #define SYNC_ATTR 0x0001 /* sync attributes */ |
| 44 | #define SYNC_CLOSE 0x0002 /* close file system down */ |
| 45 | #define SYNC_DELWRI 0x0004 /* look at delayed writes */ |
| 46 | #define SYNC_WAIT 0x0008 /* wait for i/o to complete */ |
| 47 | #define SYNC_BDFLUSH 0x0010 /* BDFLUSH is calling -- don't block */ |
| 48 | #define SYNC_FSDATA 0x0020 /* flush fs data (e.g. superblocks) */ |
| 49 | #define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */ |
| 50 | #define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */ |
David Chinner | 3c0dc77 | 2007-02-10 18:37:22 +1100 | [diff] [blame] | 51 | #define SYNC_IOWAIT 0x0100 /* wait for all I/O to complete */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
David Chinner | 516b2e7 | 2007-06-18 16:50:48 +1000 | [diff] [blame] | 53 | /* |
| 54 | * When remounting a filesystem read-only or freezing the filesystem, |
| 55 | * we have two phases to execute. This first phase is syncing the data |
| 56 | * before we quiesce the fielsystem, and the second is flushing all the |
| 57 | * inodes out after we've waited for all the transactions created by |
| 58 | * the first phase to complete. The second phase uses SYNC_INODE_QUIESCE |
| 59 | * to ensure that the inodes are written to their location on disk |
| 60 | * rather than just existing in transactions in the log. This means |
| 61 | * after a quiesce there is no log replay required to write the inodes |
| 62 | * to disk (this is the main difference between a sync and a quiesce). |
| 63 | */ |
| 64 | #define SYNC_DATA_QUIESCE (SYNC_DELWRI|SYNC_FSDATA|SYNC_WAIT|SYNC_IOWAIT) |
| 65 | #define SYNC_INODE_QUIESCE (SYNC_REMOUNT|SYNC_ATTR|SYNC_WAIT) |
| 66 | |
Nathan Scott | 7d04a33 | 2006-06-09 14:58:38 +1000 | [diff] [blame] | 67 | #define SHUTDOWN_META_IO_ERROR 0x0001 /* write attempt to metadata failed */ |
| 68 | #define SHUTDOWN_LOG_IO_ERROR 0x0002 /* write attempt to the log failed */ |
| 69 | #define SHUTDOWN_FORCE_UMOUNT 0x0004 /* shutdown from a forced unmount */ |
| 70 | #define SHUTDOWN_CORRUPT_INCORE 0x0008 /* corrupt in-memory data structures */ |
| 71 | #define SHUTDOWN_REMOTE_REQ 0x0010 /* shutdown came from remote cell */ |
| 72 | #define SHUTDOWN_DEVICE_REQ 0x0020 /* failed all paths to the device */ |
| 73 | |
Christoph Hellwig | b267ce9 | 2007-08-30 17:21:30 +1000 | [diff] [blame] | 74 | #define xfs_test_for_freeze(mp) ((mp)->m_super->s_frozen) |
| 75 | #define xfs_wait_for_freeze(mp,l) vfs_check_frozen((mp)->m_super, (l)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | #endif /* __XFS_VFS_H__ */ |