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authorChristoph Hellwig <hch@infradead.org>2009-07-18 18:15:01 -0400
committerFelix Blyakher <felixb@sgi.com>2009-08-12 01:08:01 -0500
commitddd3a14e0f030f0f7b900621f67532285b8657ef (patch)
treed8c0d11c5adc45b1a6657ddd51b6435e3d28f1f9
parent7b02ecb3031b192823bc732ae717febc0a59aa92 (diff)
downloadconfigs-ddd3a14e0f030f0f7b900621f67532285b8657ef.tar.gz
xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get
xfs_attr_rmtval_get is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Felix Blyakher <felixb@sgi.com> Signed-off-by: Felix Blyakher <felixb@sgi.com>
-rw-r--r--fs/xfs/xfs_attr.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index bfb583791fe..4ece1906bd4 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -2010,7 +2010,9 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno,
- blkcnt, XFS_BUF_LOCK, &bp);
+ blkcnt,
+ XFS_BUF_LOCK | XBF_DONT_BLOCK,
+ &bp);
if (error)
return(error);