From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Subject: [PATCH 8/8] xfs: fix dquot shaker deadlock
Date: Tue, 25 Jan 2011 19:50:44 +1100 [thread overview]
Message-ID: <1295945444-29488-9-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1295945444-29488-1-git-send-email-david@fromorbit.com>
From: Dave Chinner <dchinner@redhat.com>
Commit 368e136 ("xfs: remove duplicate code from dquot reclaim") fails
to unlock the dquot freelist when the number of loop restarts is
exceeded in xfs_qm_dqreclaim_one(). This causes hangs in memory
reclaim. Remove the bogus loop exit check that causes the problem.
Reported-by: Malcolm Scott <lkml@malc.org.uk>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/quota/xfs_qm.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index f8e854b..9431c56 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1992,8 +1992,6 @@ dqfunlock:
xfs_dqunlock(dqp);
if (dqpout)
break;
- if (restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
- return NULL;
}
mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
return dqpout;
--
1.7.2.3
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next prev parent reply other threads:[~2011-01-25 8:50 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-25 8:50 [PATCH 0/8] xfs: 2.6.38-rc candidate fixes V2 Dave Chinner
2011-01-25 8:50 ` [PATCH 1/8] xfs: fix log ticket leak on forced shutdown Dave Chinner
2011-01-26 21:22 ` Alex Elder
2011-01-25 8:50 ` [PATCH 2/8] xfs: fix efi item " Dave Chinner
2011-01-25 23:53 ` Christoph Hellwig
2011-01-27 0:35 ` Dave Chinner
2011-01-26 21:22 ` Alex Elder
2011-01-25 8:50 ` [PATCH 3/8] xfs: speculative delayed allocation uses rounddown_power_of_2 badly Dave Chinner
2011-01-26 21:22 ` Alex Elder
2011-01-25 8:50 ` [PATCH 4/8] xfs: limit extent length for allocation to AG size Dave Chinner
2011-01-26 21:22 ` Alex Elder
2011-01-27 0:38 ` Dave Chinner
2011-01-25 8:50 ` [PATCH 5/8] xfs: prevent extsize alignment from exceeding maximum extent size Dave Chinner
2011-01-25 9:49 ` Christoph Hellwig
2011-01-26 21:22 ` Alex Elder
2011-01-27 0:50 ` Dave Chinner
2011-01-25 8:50 ` [PATCH 6/8] xfs: limit extsize to size of AGs and/or MAXEXTLEN Dave Chinner
2011-01-26 21:23 ` Alex Elder
2011-01-25 8:50 ` [PATCH 7/8] xfs: handle CIl transaction commit failures correctly Dave Chinner
2011-01-25 9:53 ` Christoph Hellwig
2011-01-26 21:23 ` Alex Elder
2011-01-25 8:50 ` Dave Chinner [this message]
2011-01-25 9:52 ` [PATCH 8/8] xfs: fix dquot shaker deadlock Christoph Hellwig
2011-01-27 1:54 ` Dave Chinner
2011-01-27 2:24 ` Dave Chinner
2011-01-26 21:23 ` Alex Elder
2011-01-25 9:20 ` [PATCH 0/8] xfs: 2.6.38-rc candidate fixes V2 Christoph Hellwig
2011-01-26 21:23 ` Alex Elder
-- strict thread matches above, loose matches on Subject: below --
2011-01-27 3:53 [PATCH 0/8] xfs: candidate 2.6.38-rc fixes V3 Dave Chinner
2011-01-27 3:53 ` [PATCH 8/8] xfs: fix dquot shaker deadlock Dave Chinner
2011-01-27 15:29 ` Alex Elder
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