[PATCH 8/8] xfs: fix dquot shaker deadlock

[Dave Chinner]

From: Dave Chinner <dchinner at 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 at malc.org.uk>
Signed-off-by: Dave Chinner <dchinner at 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