xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make

i_lock is taken in the 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>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index bd0bb6dfcdf..2847bbc1c53 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -2261,9 +2261,9 @@ xfs_da_buf_make(int nbuf, xfs_buf_t **bps, inst_t *ra)
         int             off;
 
         if (nbuf == 1)
-                dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_SLEEP);
+                dabuf = kmem_zone_alloc(xfs_dabuf_zone, KM_NOFS);
         else
-                dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_SLEEP);
+                dabuf = kmem_alloc(XFS_DA_BUF_SIZE(nbuf), KM_NOFS);
         dabuf->dirty = 0;
 #ifdef XFS_DABUF_DEBUG
         dabuf->ra = ra;