On Wed 11-09-13 13:04:33, Hugh Dickins wrote:
> On Wed, 11 Sep 2013, Michal Hocko wrote:
[...]
> > From 888745909da34f8aee8a208a82d467236b828d0d Mon Sep 17 00:00:00 2001
> > From: Michal Hocko
> > Date: Wed, 11 Sep 2013 17:48:10 +0200
> > Subject: [PATCH] vmpressure: fix divide-by-0 in vmpressure_
On Wed, 11 Sep 2013, Michal Hocko wrote:
> On Wed 11-09-13 08:40:57, Anton Vorontsov wrote:
> > On Mon, Sep 09, 2013 at 01:08:47PM +0200, Michal Hocko wrote:
> > > On Fri 06-09-13 22:59:16, Hugh Dickins wrote:
> > > > Hit divide-by-0 in vmpressure_work_fn(): checking vmpr->scanned before
> > > > ta
On Wed 11-09-13 08:40:57, Anton Vorontsov wrote:
> On Mon, Sep 09, 2013 at 01:08:47PM +0200, Michal Hocko wrote:
> > On Fri 06-09-13 22:59:16, 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
On Wed, Sep 11, 2013 at 06:03:57PM +0200, Michal Hocko wrote:
> The patch below. I find it little bit nicer than Hugh's original one
> because having the two checks sounds more confusing.
> What do you think Hugh, Anton?
Acked-by: Anton Vorontsov
Thanks!
> ---
> From 888745909da34f8aee8a208a82d
On Mon, Sep 09, 2013 at 01:08:47PM +0200, Michal Hocko wrote:
> On Fri 06-09-13 22:59:16, 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.
>
> As vmpressure_work_fn seems the be t
On Fri, Sep 06, 2013 at 10:59:16PM -0700, 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
> Cc: sta...@vger.kernel.org
Hm... Just trying to understa
On Fri 06-09-13 22:59:16, 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.
As vmpressure_work_fn seems the be the only place where we set scanned
to 0 (except for the rare occasion wh
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
> Cc: sta...@vger.kernel.org
Acked-by: David Rientjes
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