From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 5/5] xfs: handle CIl transaction commit failures correctly
Date: Wed, 19 Jan 2011 15:30:00 +1100 [thread overview]
Message-ID: <1295411400-15614-6-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1295411400-15614-1-git-send-email-david@fromorbit.com>
From: Dave Chinner <dchinner@redhat.com>
Failure to commit a transaction into the CIL is not handled
correctly. This currently can only happen when racing with a
shutdown, so it rare. Handle the error similar to a log vector
memory allocation failure, and for both failures clear the PF_TRANS
flag from the task correctly.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_trans.c | 17 ++++++++++++++---
1 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 50753d3..504a804 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -1754,15 +1754,26 @@ xfs_trans_commit_cil(
*/
log_vector = xfs_trans_alloc_log_vecs(tp);
if (!log_vector)
- return ENOMEM;
+ goto out_enomem;
error = xfs_log_commit_cil(mp, tp, log_vector, commit_lsn, flags);
- if (error)
- return error;
+ if (error) {
+ /*
+ * We will only get an error if no modifications have been
+ * made to the items in the transaction. Hence treat it
+ the same as a memory allocation failure.
+ */
+ goto out_enomem;
+ }
current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
xfs_trans_free(tp);
return 0;
+
+out_enomem:
+ /* caller cleans up transaction */
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
+ return ENOMEM;
}
/*
--
1.7.2.3
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next prev parent reply other threads:[~2011-01-19 4:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-19 4:29 [PATCH 0/5] xfs: various 2.6.38 candidate bug fixes Dave Chinner
2011-01-19 4:29 ` [PATCH 1/5] xfs: speculative delayed allocation uses rounddown_power_of_2 badly Dave Chinner
2011-01-24 8:59 ` Christoph Hellwig
2011-01-19 4:29 ` [PATCH 2/5] xfs: limit extent length for allocation to AG size Dave Chinner
2011-01-24 9:02 ` Christoph Hellwig
2011-01-24 23:31 ` Dave Chinner
2011-01-19 4:29 ` [PATCH 3/5] xfs: prevent extsize alignment from exceeding maximum extent size Dave Chinner
2011-01-24 9:04 ` Christoph Hellwig
2011-01-24 23:32 ` Dave Chinner
2011-01-19 4:29 ` [PATCH 4/5] xfs: limit extsize to size of AGs and/or MAXEXTLEN Dave Chinner
2011-01-24 9:06 ` Christoph Hellwig
2011-01-24 23:37 ` Dave Chinner
2011-01-19 4:30 ` Dave Chinner [this message]
2011-01-24 9:12 ` [PATCH 5/5] xfs: handle CIl transaction commit failures correctly Christoph Hellwig
2011-01-24 23:42 ` Dave Chinner
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