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authorChristoph Hellwig <hch@infradead.org>2009-10-19 04:00:03 +0000
committerAlex Elder <aelder@sgi.com>2009-12-11 15:11:20 -0600
commit80641dc66a2d6dfb22af4413227a92b8ab84c7bb (patch)
treef7353e4ca2bd4629b41c9ec79306d042d64f90f7 /fs/xfs/xfs_trans.h
parentc56c9631cbe88f08854a56ff9776c1f310916830 (diff)
downloadlinux-80641dc66a2d6dfb22af4413227a92b8ab84c7bb.tar.bz2
xfs: I/O completion handlers must use NOFS allocations
When completing I/O requests we must not allow the memory allocator to recurse into the filesystem, as we might deadlock on waiting for the I/O completion otherwise. The only thing currently allocating normal GFP_KERNEL memory is the allocation of the transaction structure for the unwritten extent conversion. Add a memflags argument to _xfs_trans_alloc to allow controlling the allocator behaviour. Signed-off-by: Christoph Hellwig <hch@lst.de> Reported-by: Thomas Neumann <tneumann@users.sourceforge.net> Tested-by: Thomas Neumann <tneumann@users.sourceforge.net> Reviewed-by: Alex Elder <aelder@sgi.com> Signed-off-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_trans.h')
-rw-r--r--fs/xfs/xfs_trans.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index ed47fc77759c..a0574f593f52 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -924,7 +924,7 @@ typedef struct xfs_trans {
* XFS transaction mechanism exported interfaces.
*/
xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
-xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint);
+xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, uint);
xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
int xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
uint, uint);