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authorChristoph Hellwig <hch@lst.de>2009-06-08 15:37:16 +0200
committerChristoph Hellwig <hch@brick.lst.de>2009-06-08 15:37:16 +0200
commit8b5403a6d772d340541cfb30a668fde119c40ac1 (patch)
tree0a81b174351ca56555d7ccc53ecd76c0b27edcee /fs/xfs/quota/xfs_qm.c
parentb0710ccc6d9fa8fb908b5f6d1b0782a09d80e24f (diff)
downloadop-kernel-dev-8b5403a6d772d340541cfb30a668fde119c40ac1.zip
op-kernel-dev-8b5403a6d772d340541cfb30a668fde119c40ac1.tar.gz
xfs: remove SYNC_BDFLUSH
SYNC_BDFLUSH is a leftover from IRIX and rather misnamed for todays code. Make xfs_sync_fsdata and xfs_dq_sync use the SYNC_TRYLOCK flag for not blocking on logs just as the inode sync code already does. For xfs_sync_fsdata it's a trivial 1:1 replacement, but for xfs_qm_sync I use the opportunity to decouple the non-blocking lock case from the different flushing modes, similar to the inode sync code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Diffstat (limited to 'fs/xfs/quota/xfs_qm.c')
-rw-r--r--fs/xfs/quota/xfs_qm.c28
1 files changed, 5 insertions, 23 deletions
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index aa5d821..22b7c8d 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -905,11 +905,6 @@ xfs_qm_dqdetach(
}
}
-/*
- * This is called to sync quotas. We can be told to use non-blocking
- * semantics by either the SYNC_BDFLUSH flag or the absence of the
- * SYNC_WAIT flag.
- */
int
xfs_qm_sync(
xfs_mount_t *mp,
@@ -918,17 +913,13 @@ xfs_qm_sync(
int recl, restarts;
xfs_dquot_t *dqp;
uint flush_flags;
- boolean_t nowait;
int error;
if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
return 0;
+ flush_flags = (flags & SYNC_WAIT) ? XFS_QMOPT_SYNC : XFS_QMOPT_DELWRI;
restarts = 0;
- /*
- * We won't block unless we are asked to.
- */
- nowait = (boolean_t)(flags & SYNC_BDFLUSH || (flags & SYNC_WAIT) == 0);
again:
xfs_qm_mplist_lock(mp);
@@ -948,18 +939,10 @@ xfs_qm_sync(
* don't 'seem' to be dirty. ie. don't acquire dqlock.
* This is very similar to what xfs_sync does with inodes.
*/
- if (flags & SYNC_BDFLUSH) {
- if (! XFS_DQ_IS_DIRTY(dqp))
+ if (flags & SYNC_TRYLOCK) {
+ if (!XFS_DQ_IS_DIRTY(dqp))
continue;
- }
-
- if (nowait) {
- /*
- * Try to acquire the dquot lock. We are NOT out of
- * lock order, but we just don't want to wait for this
- * lock, unless somebody wanted us to.
- */
- if (! xfs_qm_dqlock_nowait(dqp))
+ if (!xfs_qm_dqlock_nowait(dqp))
continue;
} else {
xfs_dqlock(dqp);
@@ -976,7 +959,7 @@ xfs_qm_sync(
/* XXX a sentinel would be better */
recl = XFS_QI_MPLRECLAIMS(mp);
if (!xfs_dqflock_nowait(dqp)) {
- if (nowait) {
+ if (flags & SYNC_TRYLOCK) {
xfs_dqunlock(dqp);
continue;
}
@@ -994,7 +977,6 @@ xfs_qm_sync(
* Let go of the mplist lock. We don't want to hold it
* across a disk write
*/
- flush_flags = (nowait) ? XFS_QMOPT_DELWRI : XFS_QMOPT_SYNC;
xfs_qm_mplist_unlock(mp);
xfs_dqtrace_entry(dqp, "XQM_SYNC: DQFLUSH");
error = xfs_qm_dqflush(dqp, flush_flags);
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