linux-kernel - Re: [PATCH stable-4.4 1/3] mm: memcontrol: fix cgroup creation failure after many small jobs

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Message-ID: <20160815153356.GI3360@dhcp22.suse.cz>
Date:	Mon, 15 Aug 2016 17:33:57 +0200
From:	Michal Hocko <mhocko@...nel.org>
To:	Greg KH <greg@...ah.com>
Cc:	Stable tree <stable@...r.kernel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Vladimir Davydov <vdavydov@...allels.com>, linux-mm@...ck.org,
	LKML <linux-kernel@...r.kernel.org>,
	Nikolay Borisov <kernel@...p.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH stable-4.4 1/3] mm: memcontrol: fix cgroup creation
 failure after many small jobs

On Mon 15-08-16 17:22:36, Greg KH wrote:
> On Mon, Aug 15, 2016 at 05:06:44PM +0200, Michal Hocko wrote:
[...]
> > diff --git a/mm/slab_common.c b/mm/slab_common.c
> > index 3c6a86b4ec25..312ef6f7b7b1 100644
> > --- a/mm/slab_common.c
> > +++ b/mm/slab_common.c
> > @@ -522,7 +522,7 @@ void memcg_create_kmem_cache(struct mem_cgroup *memcg,
> >  
> >  	cgroup_name(css->cgroup, memcg_name_buf, sizeof(memcg_name_buf));
> >  	cache_name = kasprintf(GFP_KERNEL, "%s(%d:%s)", root_cache->name,
> > -			       css->id, memcg_name_buf);
> > +			       css->serial_nr, memcg_name_buf);
> 
> You didn't pick up my change for the string here that the kbuild system
> found.  I'll edit it by hand...

Will repost with this fixed as well.
-- 
Michal Hocko
SUSE Labs