linux-kernel - Re: [PATCH] vmpressure: fix divide-by-0 in vmpressure_work

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Message-ID: <alpine.DEB.2.02.1309071843230.8326@chino.kir.corp.google.com>
Date:	Sat, 7 Sep 2013 18:43:33 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Hugh Dickins <hughd@...gle.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Anton Vorontsov <anton.vorontsov@...aro.org>,
	Michal Hocko <mhocko@...e.cz>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH] vmpressure: fix divide-by-0 in vmpressure_work_fn

On Fri, 6 Sep 2013, Hugh Dickins wrote:

> Hit divide-by-0 in vmpressure_work_fn(): checking vmpr->scanned before
> taking the lock is not enough, we must check scanned afterwards too.
> 
> Signed-off-by: Hugh Dickins <hughd@...gle.com>
> Cc: stable@...r.kernel.org

Acked-by: David Rientjes <rientjes@...gle.com>
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