linux-kernel - Re: [merged] mm-memcg-handle-non-error-oom-situations-more-gracefully.patch removed from -mm tree

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Message-ID: <20131130033732.GM22729@cmpxchg.org>
Date:	Fri, 29 Nov 2013 22:37:32 -0500
From:	Johannes Weiner <hannes@...xchg.org>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	David Rientjes <rientjes@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>, stable@...nel.org,
	azurit@...ox.sk, mm-commits@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [merged]
 mm-memcg-handle-non-error-oom-situations-more-gracefully.patch removed from
 -mm tree

On Thu, Nov 28, 2013 at 10:12:55AM +0100, Michal Hocko wrote:
> On Wed 27-11-13 18:33:53, Johannes Weiner wrote:
> [...]
> > diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> > index 13b9d0f..5f9e467 100644
> > --- a/mm/memcontrol.c
> > +++ b/mm/memcontrol.c
> > @@ -2675,7 +2675,7 @@ static int __mem_cgroup_try_charge(struct mm_struct *mm,
> >  		goto bypass;
> >  
> >  	if (unlikely(task_in_memcg_oom(current)))
> > -		goto bypass;
> > +		goto nomem;
> >  
> >  	/*
> >  	 * We always charge the cgroup the mm_struct belongs to.
> 
> Yes, I think we really want this. Plan to send a patch? The first charge
> failure due to OOM shouldn't be papered over by a later attempt if we
> didn't get through mem_cgroup_oom_synchronize yet.

Sure thing.  Will send this to Andrew on Monday.
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