Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750934AbZIHT6N (ORCPT ); Tue, 8 Sep 2009 15:58:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751283AbZIHT6M (ORCPT ); Tue, 8 Sep 2009 15:58:12 -0400 Received: from smtp2.ultrahosting.com ([74.213.174.253]:53533 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750934AbZIHT6L (ORCPT ); Tue, 8 Sep 2009 15:58:11 -0400 Date: Tue, 8 Sep 2009 15:57:04 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@V090114053VZO-1 To: "Paul E. McKenney" cc: Eric Dumazet , Pekka Enberg , Zdenek Kabelac , Patrick McHardy , Robin Holt , Linux Kernel Mailing List , Jesper Dangaard Brouer , Linux Netdev List , Netfilter Developers Subject: Re: [PATCH] slub: fix slab_pad_check() In-Reply-To: <20090904204335.GG6751@linux.vnet.ibm.com> Message-ID: References: <4A9F7283.1090306@gmail.com> <4A9FCDC6.3060003@gmail.com> <4A9FDA72.8060001@gmail.com> <4AA00400.1030005@gmail.com> <20090903231757.GP6761@linux.vnet.ibm.com> <20090904204335.GG6751@linux.vnet.ibm.com> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 725 Lines: 19 On Fri, 4 Sep 2009, Paul E. McKenney wrote: > We have gotten along fine with only SLAB_DESTROY_BY_RCU for almost > five years, so I think we are plenty fine with what we have. So, as > you say, "as the need arises". These were the glory years where SLAB_DESTROY_BY_RCU was only used for anonymous vmas. Now Eric has picked it up for the net subsystem. You may see the RCU use proliferate. The kmem_cache_destroy rcu barriers did not matter until SLAB_DESTROY_BY_RCU spread. -- 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/