linux-kernel - Re: [RFC][PATCH 1/5] mm/slab_common: allow NULL cache pointer in kmem_cache

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Message-ID: <alpine.DEB.2.02.1506201824510.2067@localhost6.localdomain6>
Date:	Sat, 20 Jun 2015 18:25:33 +0200 (CEST)
From:	Julia Lawall <julia.lawall@...6.fr>
To:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
cc:	David Rientjes <rientjes@...gle.com>,
	Julia Lawall <julia.lawall@...6.fr>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan@...nel.org>,
	Christoph Lameter <cl@...ux.com>,
	Pekka Enberg <penberg@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Michal Hocko <mhocko@...e.cz>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [RFC][PATCH 1/5] mm/slab_common: allow NULL cache pointer in
 kmem_cache_destroy()



On Thu, 18 Jun 2015, Sergey Senozhatsky wrote:

> On (06/17/15 16:14), David Rientjes wrote:
> [..]
> > > 
> > > Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
> > > Reported-by: Andrew Morton <akpm@...ux-foundation.org>
> > > LKML-reference: https://lkml.org/lkml/2015/6/8/583
> > 
> > Acked-by: David Rientjes <rientjes@...gle.com>
> > 
> > kmem_cache_destroy() isn't a fastpath, this is long overdue.  Now where's 
> > the patch to remove the NULL checks from the callers? ;)
> > 
> 
> Thanks.
> 
> Yes, Julia Lawall (Cc'd) already has a patch set ready for submission.

The patch for making these functions able to tolerate NULL doesn't seem to 
be in linux-next yet, so I will wait until it appears.

julia
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