Re: [PATCH RFC 3/3] slub: reparent memcg caches' slabs on memcg offline

From: Vladimir Davydov
Date: Thu May 22 2014 - 10:07:13 EST


On Wed, May 21, 2014 at 07:15:26PM -0500, Christoph Lameter wrote:
> On Wed, 21 May 2014, Vladimir Davydov wrote:
>
> > Don't think so. AFAIU put_cpu_partial() first checks if the per-cpu
> > partial list has more than s->cpu_partial objects draining it if so, but
> > then it adds the newly frozen slab there anyway.
>
> Hmmm... Ok true. Maybe insert some code there then.

Agree, it's better to add the check to put_cpu_partial() rather than to
__slab_free(), because the latter is a hot path.

I'll send the patches soon.

Thank you!
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