[XFS] Check for dquot flush errors
xfs_qm_dqflush() can fail, but the return is not checked anywhere. Hence
we never know if we've failed to flush a dquot to disk. Propagate the
error and warn to the syslog if a flush ever fails.
SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30787a
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 665babc..15214fb 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -1439,9 +1439,7 @@
uint flags)
{
xfs_dqhash_t *thishash;
- xfs_mount_t *mp;
-
- mp = dqp->q_mount;
+ xfs_mount_t *mp = dqp->q_mount;
ASSERT(XFS_QM_IS_MPLIST_LOCKED(mp));
ASSERT(XFS_DQ_IS_HASH_LOCKED(dqp->q_hash));
@@ -1485,6 +1483,7 @@
* we're unmounting, we do care, so we flush it and wait.
*/
if (XFS_DQ_IS_DIRTY(dqp)) {
+ int error;
xfs_dqtrace_entry(dqp, "DQPURGE ->DQFLUSH: DQDIRTY");
/* dqflush unlocks dqflock */
/*
@@ -1495,7 +1494,10 @@
* We don't care about getting disk errors here. We need
* to purge this dquot anyway, so we go ahead regardless.
*/
- (void) xfs_qm_dqflush(dqp, XFS_QMOPT_SYNC);
+ error = xfs_qm_dqflush(dqp, XFS_QMOPT_SYNC);
+ if (error)
+ xfs_fs_cmn_err(CE_WARN, mp,
+ "xfs_qm_dqpurge: dquot %p flush failed", dqp);
xfs_dqflock(dqp);
}
ASSERT(dqp->q_pincount == 0);
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 1800e8d..3dedce1 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -146,6 +146,7 @@
xfs_dq_logitem_t *logitem)
{
xfs_dquot_t *dqp;
+ int error;
dqp = logitem->qli_dquot;
@@ -161,7 +162,11 @@
* lock without sleeping, then there must not have been
* anyone in the process of flushing the dquot.
*/
- xfs_qm_dqflush(dqp, XFS_B_DELWRI);
+ error = xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+ if (error)
+ xfs_fs_cmn_err(CE_WARN, dqp->q_mount,
+ "xfs_qm_dquot_logitem_push: push error %d on dqp %p",
+ error, dqp);
xfs_dqunlock(dqp);
}
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 04b29c6..0ed3c82 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -2094,12 +2094,17 @@
* dirty dquots.
*/
if (XFS_DQ_IS_DIRTY(dqp)) {
+ int error;
xfs_dqtrace_entry(dqp, "DQSHAKE: DQDIRTY");
/*
* We flush it delayed write, so don't bother
* releasing the mplock.
*/
- (void) xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+ error = xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+ if (error) {
+ xfs_fs_cmn_err(CE_WARN, dqp->q_mount,
+ "xfs_qm_dqflush_all: dquot %p flush failed", dqp);
+ }
xfs_dqunlock(dqp); /* dqflush unlocks dqflock */
dqp = dqp->dq_flnext;
continue;
@@ -2266,12 +2271,17 @@
* dirty dquots.
*/
if (XFS_DQ_IS_DIRTY(dqp)) {
+ int error;
xfs_dqtrace_entry(dqp, "DQRECLAIM: DQDIRTY");
/*
* We flush it delayed write, so don't bother
* releasing the freelist lock.
*/
- (void) xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+ error = xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
+ if (error) {
+ xfs_fs_cmn_err(CE_WARN, dqp->q_mount,
+ "xfs_qm_dqreclaim: dquot %p flush failed", dqp);
+ }
xfs_dqunlock(dqp); /* dqflush unlocks dqflock */
continue;
}
