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xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near

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When we fail to find an matching extent near the requested extent
specification during a left-right distance search in
xfs_alloc_ag_vextent_near, we fail to free the original cursor that
we used to look up the XFS_BTNUM_CNT tree and hence leak it.

Reported-by: Chris J Arges <chris.j.arges@canonical.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner 2012-06-12 14:20:26 +10:00 committed by Ben Myers
parent 76e8f13866
commit 079da28c64
1 changed files with 1 additions and 0 deletions
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fs/xfs/xfs_alloc.c
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@ -1080,6 +1080,7 @@ xfs_alloc_ag_vextent_near(
goto restart;
}
xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
trace_xfs_alloc_size_neither(args);
args->agbno = NULLAGBLOCK;
return 0;