From: Christoph Lameter <clameter@sgi.com>
To: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: [PATCH -mm] slub: fix cpu hotplug offline/online path
Date: Wed, 10 Oct 2007 10:39:32 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.64.0710101037210.7158@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20071010121853.GA3911@APFDCB5C>
On Wed, 10 Oct 2007, Akinobu Mita wrote:
> I couldn't use get_cpu_slab() for that check. But I reviced the patch to do
> what you said.
Why would get_cpu_slab not work?
> + if (per_cpu(kmem_cache_cpu_free, cpu)) {
> + /* Already initialized once */
> + return;
> + }
> +
kmem_cache_cpu_free is not only NULL if the cpu is not up yet but it is
also NULL if the per cpu pool of kmem_cache_cpu structures was
exhausted.
next prev parent reply other threads:[~2007-10-10 17:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-09 16:13 Akinobu Mita
2007-10-09 17:41 ` Pekka Enberg
2007-10-09 18:46 ` Christoph Lameter
2007-10-09 18:48 ` Pekka Enberg
2007-10-09 18:50 ` Christoph Lameter
2007-10-09 19:02 ` Pekka Enberg
2007-10-09 19:15 ` Christoph Lameter
2007-10-10 12:18 ` Akinobu Mita
2007-10-10 17:39 ` Christoph Lameter [this message]
2007-10-11 14:36 ` Akinobu Mita
2007-10-11 16:46 ` Christoph Lameter
2007-10-11 17:24 ` Akinobu Mita
2007-10-11 17:36 ` Christoph Lameter
2007-10-11 17:37 ` Christoph Lameter
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