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authorChristoph Hellwig <hch@infradead.org>2009-03-03 19:48:37 (GMT)
committerFelix Blyakher <felixb@sgi.com>2009-03-06 23:35:12 (GMT)
commitc141b2928fe20396a9ecdec85526e4b66ae96c90 (patch)
treed708be285a392950e85aacf8a24e130431d9c240 /fs/xfs/linux-2.6/xfs_buf.c
parent7d46be4a25fdfb503c20bad60a618adebfe2ac5c (diff)
downloadlinux-fsl-qoriq-c141b2928fe20396a9ecdec85526e4b66ae96c90.tar.xz
xfs: only issues a cache flush on unmount if barriers are enabled
Currently we unconditionally issue a flush from xfs_free_buftarg, but since 2.6.29-rc1 this gives a warning in the style of end_request: I/O error, dev vdb, sector 0 Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Felix Blyakher <felixb@sgi.com>
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_buf.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index cb329ed..aa1016b 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -34,6 +34,12 @@
#include <linux/backing-dev.h>
#include <linux/freezer.h>
+#include "xfs_sb.h"
+#include "xfs_inum.h"
+#include "xfs_ag.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+
static kmem_zone_t *xfs_buf_zone;
STATIC int xfsbufd(void *);
STATIC int xfsbufd_wakeup(int, gfp_t);
@@ -1435,10 +1441,12 @@ xfs_unregister_buftarg(
void
xfs_free_buftarg(
- xfs_buftarg_t *btp)
+ struct xfs_mount *mp,
+ struct xfs_buftarg *btp)
{
xfs_flush_buftarg(btp, 1);
- xfs_blkdev_issue_flush(btp);
+ if (mp->m_flags & XFS_MOUNT_BARRIER)
+ xfs_blkdev_issue_flush(btp);
xfs_free_bufhash(btp);
iput(btp->bt_mapping->host);