linux-kernel - Re: [patch 7/9] mm: memcontrol: do not acquire page

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Message-ID: <20140523142929.GC3147@esperanza>
Date:	Fri, 23 May 2014 18:29:31 +0400
From:	Vladimir Davydov <vdavydov@...allels.com>
To:	Johannes Weiner <hannes@...xchg.org>
CC:	Michal Hocko <mhocko@...e.cz>, <linux-mm@...ck.org>,
	Hugh Dickins <hughd@...gle.com>, Tejun Heo <tj@...nel.org>,
	<cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [patch 7/9] mm: memcontrol: do not acquire page_cgroup lock for
 kmem pages

On Fri, May 23, 2014 at 03:39:38PM +0200, Michal Hocko wrote:
> I am adding Vladimir to CC
> 
> On Wed 30-04-14 16:25:41, Johannes Weiner wrote:
> > Kmem page charging and uncharging is serialized by means of exclusive
> > access to the page.  Do not take the page_cgroup lock and don't set
> > pc->flags atomically.
> > 
> > Signed-off-by: Johannes Weiner <hannes@...xchg.org>

Acked-by: Vladimir Davydov <vdavydov@...allels.com>
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