linux-kernel - Re: [PATCH -mm] vmscan: fix sane_reclaim helper for legacy memcg

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Message-ID: <20150918133032.GA10877@mtj.duckdns.org>
Date:	Fri, 18 Sep 2015 09:30:32 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Vladimir Davydov <vdavydov@...allels.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Hocko <mhocko@...nel.org>,
	Johannes Weiner <hannes@...xchg.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -mm] vmscan: fix sane_reclaim helper for legacy memcg

On Fri, Sep 18, 2015 at 03:48:00PM +0300, Vladimir Davydov wrote:
> The sane_reclaim() helper is supposed to return false for memcg reclaim
> if the legacy hierarchy is used, because the latter lacks dirty
> throttling mechanism, and so it did before it was accidentally broken by
> commit 33398cf2f360c ("memcg: export struct mem_cgroup"). Fix it.
> 
> Fixes: 33398cf2f360c ("memcg: export struct mem_cgroup")
> Signed-off-by: Vladimir Davydov <vdavydov@...allels.com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun
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