mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was...
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 30 Sep 2013 20:45:09 +0000 (13:45 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 13 Oct 2013 23:08:33 +0000 (16:08 -0700)
commita1cccf25241ba0f2f373f6c94bf8ff9a747ae305
tree1d4ac37ff5c3100382b82483e21c9c0353bfbc23
parent4dc59be5037f059421e302890165d5ccf6a386ac
mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored

commit 83b2944fd2532b92db099cb3ada12df32a05b368 upstream.

The "force" parameter in __blk_queue_bounce was being ignored, which
means that stable page snapshots are not always happening (on ext3).
This of course leads to DIF disks reporting checksum errors, so fix this
regression.

The regression was introduced in commit 6bc454d15004 ("bounce: Refactor
__blk_queue_bounce to not use bi_io_vec")

Reported-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Kent Overstreet <koverstreet@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mm/bounce.c