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[XFS] Remove xfs_iflush_all and clean up xfs_finish_reclaim_all()

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xfs_iflush_all() walks the m_inodes list to find inodes that need
reclaiming. We already have such a list - the m_del_inodes list. Replace
xfs_iflush_all() with a call to xfs_finish_reclaim_all() and clean up
xfs_finish_reclaim_all() to handle the different flush modes now needed.

Originally based on a patch from Christoph Hellwig.

Version 3 o rediff against new linux-2.6/xfs_sync.c code

Version 2 o revert xfs_syncsub() inode reclaim behaviour back to original

code o xfs_quiesce_fs() should use XFS_IFLUSH_DELWRI_ELSE_ASYNC, not

XFS_IFLUSH_ASYNC, to prevent change of behaviour.

SGI-PV: 988139

SGI-Modid: xfs-linux-melb:xfs-kern:32284a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
This commit is contained in:
David Chinner 2008-10-30 17:06:28 +11:00 committed by Lachlan McIlroy
parent a167b17e89
commit 75c68f411b
6 changed files with 22 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/xfs/linux-2.6/xfs_sync.c
View File

@ -504,7 +504,7 @@ xfs_syncsub(
if (flags & (SYNC_ATTR|SYNC_DELWRI)) {
if (flags & SYNC_BDFLUSH)
xfs_finish_reclaim_all(mp, 1);
xfs_finish_reclaim_all(mp, 1, XFS_IFLUSH_DELWRI_ELSE_ASYNC);
else
error = xfs_sync_inodes(mp, flags, bypassed);
}

35
fs/xfs/xfs_inode.c
View File

@ -3499,41 +3499,6 @@ corrupt_out:
}
/*
* Flush all inactive inodes in mp.
*/
void
xfs_iflush_all(
xfs_mount_t *mp)
{
xfs_inode_t *ip;
again:
XFS_MOUNT_ILOCK(mp);
ip = mp->m_inodes;
if (ip == NULL)
goto out;
do {
/* Make sure we skip markers inserted by sync */
if (ip->i_mount == NULL) {
ip = ip->i_mnext;
continue;
}
if (!VFS_I(ip)) {
XFS_MOUNT_IUNLOCK(mp);
xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
goto again;
}
ASSERT(vn_count(VFS_I(ip)) == 0);
ip = ip->i_mnext;
} while (ip != mp->m_inodes);
out:
XFS_MOUNT_IUNLOCK(mp);
}
#ifdef XFS_ILOCK_TRACE
ktrace_t *xfs_ilock_trace_buf;

3
fs/xfs/xfs_inode.h
View File

@ -503,7 +503,7 @@ uint xfs_ilock_map_shared(xfs_inode_t *);
void xfs_iunlock_map_shared(xfs_inode_t *, uint);
void xfs_ireclaim(xfs_inode_t *);
int xfs_finish_reclaim(xfs_inode_t *, int, int);
int xfs_finish_reclaim_all(struct xfs_mount *, int);
int xfs_finish_reclaim_all(struct xfs_mount *, int, int);
/*
* xfs_inode.c prototypes.
@ -530,7 +530,6 @@ void xfs_iext_realloc(xfs_inode_t *, int, int);
void xfs_ipin(xfs_inode_t *);
void xfs_iunpin(xfs_inode_t *);
int xfs_iflush(xfs_inode_t *, uint);
void xfs_iflush_all(struct xfs_mount *);
void xfs_ichgtime(xfs_inode_t *, int);
xfs_fsize_t xfs_file_last_byte(xfs_inode_t *);
void xfs_lock_inodes(xfs_inode_t **, int, uint);

2
fs/xfs/xfs_mount.c
View File

@ -1241,7 +1241,7 @@ xfs_unmountfs(
* need to force the log first.
*/
xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
xfs_iflush_all(mp);
xfs_finish_reclaim_all(mp, 0, XFS_IFLUSH_ASYNC);
XFS_QM_DQPURGEALL(mp, XFS_QMOPT_QUOTALL | XFS_QMOPT_UMOUNTING);

2
fs/xfs/xfs_vfsops.c
View File

@ -66,7 +66,7 @@ xfs_quiesce_fs(
int count = 0, pincount;
xfs_flush_buftarg(mp->m_ddev_targp, 0);
xfs_finish_reclaim_all(mp, 0);
xfs_finish_reclaim_all(mp, 0, XFS_IFLUSH_DELWRI_ELSE_ASYNC);
/* This loop must run at least twice.
* The first instance of the loop will flush

42
fs/xfs/xfs_vnodeops.c
View File

@ -2918,36 +2918,30 @@ xfs_finish_reclaim(
}
int
xfs_finish_reclaim_all(xfs_mount_t *mp, int noblock)
xfs_finish_reclaim_all(
xfs_mount_t *mp,
int noblock,
int mode)
{
int purged;
xfs_inode_t *ip, *n;
int done = 0;
while (!done) {
purged = 0;
XFS_MOUNT_ILOCK(mp);
list_for_each_entry_safe(ip, n, &mp->m_del_inodes, i_reclaim) {
if (noblock) {
if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0)
continue;
if (xfs_ipincount(ip) ||
!xfs_iflock_nowait(ip)) {
xfs_iunlock(ip, XFS_ILOCK_EXCL);
continue;
}
restart:
XFS_MOUNT_ILOCK(mp);
list_for_each_entry_safe(ip, n, &mp->m_del_inodes, i_reclaim) {
if (noblock) {
if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0)
continue;
if (xfs_ipincount(ip) ||
!xfs_iflock_nowait(ip)) {
xfs_iunlock(ip, XFS_ILOCK_EXCL);
continue;
}
XFS_MOUNT_IUNLOCK(mp);
if (xfs_finish_reclaim(ip, noblock,
XFS_IFLUSH_DELWRI_ELSE_ASYNC))
delay(1);
purged = 1;
break;
}
done = !purged;
XFS_MOUNT_IUNLOCK(mp);
if (xfs_finish_reclaim(ip, noblock, mode))
delay(1);
goto restart;
}
XFS_MOUNT_IUNLOCK(mp);
return 0;
}