linux-kernel - Re: [PATCH 1/3] mm/slab: use percpu allocator for cpu cache

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Message-ID: <20140901001912.GD25599@js1304-P5Q-DELUXE>
Date:	Mon, 1 Sep 2014 09:19:12 +0900
From:	Joonsoo Kim <iamjoonsoo.kim@....com>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	David Rientjes <rientjes@...gle.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] mm/slab: use percpu allocator for cpu cache

On Wed, Aug 27, 2014 at 06:37:33PM -0500, Christoph Lameter wrote:
> One minor nit. Otherwise
> 
> Acked-by: Christoph Lameter <cl@...ux.com>
> 
> On Thu, 21 Aug 2014, Joonsoo Kim wrote:
> 
> > @@ -2041,56 +1982,63 @@ static size_t calculate_slab_order(struct kmem_cache *cachep,
> >  	return left_over;
> >  }
> >
> > +static int alloc_kmem_cache_cpus(struct kmem_cache *cachep, int entries,
> > +				int batchcount)
> > +{
> > +	cachep->cpu_cache = __alloc_kmem_cache_cpus(cachep, entries,
> > +							batchcount);
> > +	if (!cachep->cpu_cache)
> > +		return 1;
> > +
> > +	return 0;
> > +}
> 
> Do we really need this trivial function? It doesnt do anything useful as
> far as I can tell.

Hello,

You are right. I will remove it in next spin.

Thanks.
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