Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932854AbaJXOCW (ORCPT ); Fri, 24 Oct 2014 10:02:22 -0400 Received: from resqmta-po-09v.sys.comcast.net ([96.114.154.168]:39784 "EHLO resqmta-po-09v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932626AbaJXOCV (ORCPT ); Fri, 24 Oct 2014 10:02:21 -0400 Date: Fri, 24 Oct 2014 09:02:18 -0500 (CDT) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Joonsoo Kim cc: akpm@linuxfoundation.org, rostedt@goodmis.org, linux-kernel@vger.kernel.org, Thomas Gleixner , linux-mm@kvack.org, penberg@kernel.org, iamjoonsoo@lge.com Subject: Re: [RFC 0/4] [RFC] slub: Fastpath optimization (especially for RT) In-Reply-To: <20141024045630.GD15243@js1304-P5Q-DELUXE> Message-ID: References: <20141022155517.560385718@linux.com> <20141023080942.GA7598@js1304-P5Q-DELUXE> <20141024045630.GD15243@js1304-P5Q-DELUXE> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 24 Oct 2014, Joonsoo Kim wrote: > In this case, object from cpu1's cpu_cache should be > different with cpu0's, so allocation would be failed. That is true for most object pointers unless the value is NULL. Which it can be. But if this is the only case then the second patch + your approach would work too. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/