From: "Rafael J. Wysocki" <rjw@sisk.pl>

Make the workqueues used by XFS freezeable, so their worker threads don't
submit any I/O after the suspend image has been created.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@suspend2.net>
Cc: David Chinner <dgc@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 fs/xfs/linux-2.6/xfs_buf.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN fs/xfs/linux-2.6/xfs_buf.c~use-freezeable-workqueues-in-xfs fs/xfs/linux-2.6/xfs_buf.c
--- a/fs/xfs/linux-2.6/xfs_buf.c~use-freezeable-workqueues-in-xfs
+++ a/fs/xfs/linux-2.6/xfs_buf.c
@@ -1826,11 +1826,11 @@ xfs_buf_init(void)
 	if (!xfs_buf_zone)
 		goto out_free_trace_buf;
 
-	xfslogd_workqueue = create_workqueue("xfslogd");
+	xfslogd_workqueue = create_freezeable_workqueue("xfslogd");
 	if (!xfslogd_workqueue)
 		goto out_free_buf_zone;
 
-	xfsdatad_workqueue = create_workqueue("xfsdatad");
+	xfsdatad_workqueue = create_freezeable_workqueue("xfsdatad");
 	if (!xfsdatad_workqueue)
 		goto out_destroy_xfslogd_workqueue;
 
_