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diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
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1/*
2 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
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
7 * published by the Free Software Foundation.
8 *
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.
13 *
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
17 */
18#ifndef __XFS_VFS_H__
19#define __XFS_VFS_H__
20
21#include <linux/vfs.h>
22#include "xfs_fs.h"
23
24struct inode;
25
26struct fid;
27struct cred;
28struct seq_file;
29struct super_block;
30struct xfs_inode;
31struct xfs_mount;
32struct xfs_mount_args;
33
34typedef struct kstatfs bhv_statvfs_t;
35
36typedef struct bhv_vfs_sync_work {
37 struct list_head w_list;
38 struct xfs_mount *w_mount;
39 void *w_data; /* syncer routine argument */
40 void (*w_syncer)(struct xfs_mount *, void *);
41} bhv_vfs_sync_work_t;
42
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 */
51#define SYNC_IOWAIT 0x0100 /* wait for all I/O to complete */
52
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
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
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))
76
77#endif /* __XFS_VFS_H__ */