Re: [PATCH v3 06/16] memcg: infrastructure to match an allocationto the right cache

From: Tejun Heo
Date: Fri Sep 21 2012 - 16:52:36 EST


Missed some stuff.

On Tue, Sep 18, 2012 at 06:12:00PM +0400, Glauber Costa wrote:
> +static struct kmem_cache *memcg_create_kmem_cache(struct mem_cgroup *memcg,
> + struct kmem_cache *cachep)
> +{
...
> + memcg->slabs[idx] = new_cachep;
...
> +struct kmem_cache *__memcg_kmem_get_cache(struct kmem_cache *cachep,
> + gfp_t gfp)
> +{
...
> + return memcg->slabs[idx];

I think you need memory barriers for the above pair.

Thanks.

--
tejun
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