Re: [PATCH] mm: Fix a regression where MS_SNAP_STABLE (stable pagessnapshotting) was ignored

From: Mel Gorman
Date: Fri Sep 20 2013 - 04:07:25 EST


On Thu, Sep 19, 2013 at 08:06:02PM -0700, Darrick J. Wong wrote:
> 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 6bc454d1 (bounce: Refactor
> __blk_queue_bounce to not use bi_io_vec)
>
> Reported-by: Mel Gorman <mgorman@xxxxxxx>
> Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

I have no means of testing it but it looks right and thanks for checking
DIF disks.

Acked-by: Mel Gorman <mgorman@xxxxxxx>

--
Mel Gorman
SUSE Labs
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