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[XFS] Write log dummy record when freezing filesystem 

SGI-PV: 945483
SGI-Modid: xfs-linux-melb:xfs-kern:202638a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
wifi-calibration
Christoph Hellwig 2006-01-11 15:30:08 +11:00 committed by Nathan Scott
parent 1df84c930a
commit e13a73f025
3 changed files with 29 additions and 0 deletions
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26
fs/xfs/xfs_fsops.c
View File

@ -540,6 +540,32 @@ xfs_reserve_blocks(
return(0);
}
void
xfs_fs_log_dummy(xfs_mount_t *mp)
{
xfs_trans_t *tp;
xfs_inode_t *ip;
tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1);
atomic_inc(&mp->m_active_trans);
if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) {
xfs_trans_cancel(tp, 0);
return;
}
ip = mp->m_rootip;
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_trans_ihold(tp, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
xfs_trans_set_sync(tp);
xfs_trans_commit(tp, 0, NULL);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
}
int
xfs_fs_goingdown(
xfs_mount_t *mp,

1
fs/xfs/xfs_fsops.h
View File

@ -25,5 +25,6 @@ extern int xfs_fs_counts(xfs_mount_t *mp, xfs_fsop_counts_t *cnt);
extern int xfs_reserve_blocks(xfs_mount_t *mp, __uint64_t *inval,
xfs_fsop_resblks_t *outval);
extern int xfs_fs_goingdown(xfs_mount_t *mp, __uint32_t inflags);
extern void xfs_fs_log_dummy(xfs_mount_t *mp);
#endif /* __XFS_FSOPS_H__ */

2
fs/xfs/xfs_vfsops.c
View File

@ -53,6 +53,7 @@
#include "xfs_acl.h"
#include "xfs_attr.h"
#include "xfs_clnt.h"
#include "xfs_fsops.h"
STATIC int xfs_sync(bhv_desc_t *, int, cred_t *);
@ -1967,6 +1968,7 @@ xfs_freeze(
/* Push the superblock and write an unmount record */
xfs_log_unmount_write(mp);
xfs_unmountfs_writesb(mp);
xfs_fs_log_dummy(mp);
}