From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752121AbYLWOoh (ORCPT ); Tue, 23 Dec 2008 09:44:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750945AbYLWOo3 (ORCPT ); Tue, 23 Dec 2008 09:44:29 -0500 Received: from courier.cs.helsinki.fi ([128.214.9.1]:51068 "EHLO mail.cs.helsinki.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750851AbYLWOo2 (ORCPT ); Tue, 23 Dec 2008 09:44:28 -0500 Subject: Re: [PATCH] failslab for SLUB From: Pekka Enberg To: Johannes Weiner Cc: Akinobu Mita , linux-kernel@vger.kernel.org, Christoph Lameter , Matt Mackall , linux-mm@kvack.org, akpm@linux-foundation.org In-Reply-To: <20081223144307.GA3215@cmpxchg.org> References: <20081223103616.GA7217@localhost.localdomain> <20081223144307.GA3215@cmpxchg.org> Date: Tue, 23 Dec 2008 16:44:26 +0200 Message-Id: <1230043466.11073.0.camel@penberg-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit X-Mailer: Evolution 2.22.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Hannes, On Tue, 2008-12-23 at 15:43 +0100, Johannes Weiner wrote: > > static inline void *____cache_alloc(struct kmem_cache *cachep, > gfp_t flags) > > { > > void *objp; > > @@ -3381,7 +3316,7 @@ __cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, > > unsigned long save_flags; > > void *ptr; > > > > - if (should_failslab(cachep, flags)) > > + if (slab_should_failslab(cachep, flags)) > > should_failslab()? No, look at what slab_should_failslab() does. We need to exclude cache_cache in SLAB but not in SLUB.