From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dan Williams <dan.j.williams@intel.com>
Subject: Re: [Lsf-pc] [LSF/MM TOPIC] a few storage topics
Date: Wed, 18 Jan 2012 15:39:20 -0800
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On Wed, Jan 18, 2012 at 2:58 PM, Darrick J. Wong <djwong@us.ibm.com> wrote:
> Or possibly modify md-raid5 not to snapshot dirty pages prior to xor/write?
> (I never really bothered to find out if it really does this.)

It does.  ops_run_biodrain() copies from bio to the stripe cache
before performing xor.


--
Dan