linux-kernel - Re: [PATCH] mm: Fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored

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Message-ID: <CAMM=eLeuGXj8QUZStX53g5Pej-+xrEaLca7PR-WqeB2UN_cQFQ@mail.gmail.com>
Date:	Thu, 19 Sep 2013 23:28:16 -0400
From:	Mike Snitzer <snitzer@...il.com>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	Kent Overstreet <kmo@...erainc.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Jens Axboe <axboe@...nel.dk>,
	Jan Kara <jack@...e.cz>, Hannes Reinecke <hare@...e.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: Fix a regression where MS_SNAP_STABLE (stable pages
 snapshotting) was ignored

On Thu, Sep 19, 2013 at 11:06 PM, Darrick J. Wong
<darrick.wong@...cle.com> 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)

Should probably add "Cc: stable@...r.kernel.org # v3.10+" no?
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