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authorChristoph Hellwig <hch@infradead.org>2009-07-18 18:14:54 -0400
committerFelix Blyakher <felixb@sgi.com>2009-08-12 01:06:59 -0500
commitca35dcd6cae7d4a780c484c53f45548c4719f82c (patch)
treeef2c93d8c55e075a8153e39eda7aa94464b64677
parent0cc6eee130b0c062feec8446d9cecdb17d2cfad3 (diff)
downloadconfigs-ca35dcd6cae7d4a780c484c53f45548c4719f82c.tar.gz
xfs: switch to NOFS allocation under i_lock in xfs_getbmap
xfs_getbmap allocates memory 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_bmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 7928b9983c1..8ee5b5a76a2 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -6009,7 +6009,7 @@ xfs_getbmap(
*/
error = ENOMEM;
subnex = 16;
- map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL);
+ map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL | KM_NOFS);
if (!map)
goto out_unlock_ilock;