From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9210 invoked by alias); 21 Dec 2006 00:15:56 -0000 Received: (qmail 9202 invoked by uid 22791); 21 Dec 2006 00:15:55 -0000 X-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,FORGED_RCVD_HELO X-Spam-Check-By: sourceware.org Received: from tomts13.bellnexxia.net (HELO tomts13-srv.bellnexxia.net) (209.226.175.34) by sourceware.org (qpsmtpd/0.31) with ESMTP; Thu, 21 Dec 2006 00:15:50 +0000 Received: from krystal.dyndns.org ([67.68.205.181]) by tomts13-srv.bellnexxia.net (InterMail vM.5.01.06.13 201-253-122-130-113-20050324) with ESMTP id <20061221001547.NNHO1773.tomts13-srv.bellnexxia.net@krystal.dyndns.org> for ; Wed, 20 Dec 2006 19:15:47 -0500 Received: from localhost (localhost [127.0.0.1]) (uid 1000) by krystal.dyndns.org with local; Wed, 20 Dec 2006 19:15:46 -0500 id 0014EC6C.4589D232.000046EE Date: Thu, 21 Dec 2006 00:22:00 -0000 From: Mathieu Desnoyers To: linux-kernel@vger.kernel.org, Andrew Morton , Ingo Molnar , Greg Kroah-Hartman , Christoph Hellwig Cc: ltt-dev@shafik.org, systemtap@sources.redhat.com, Douglas Niehaus , "Martin J. Bligh" , Thomas Gleixner Subject: [PATCH 0/10] local_t : adding and standardising atomic primitives Message-ID: <20061221001545.GP28643@Krystal> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Editor: vi X-Info: http://krystal.dyndns.org:8080 X-Operating-System: Linux/2.4.32-grsec (i686) X-Uptime: 19:14:24 up 119 days, 21:22, 6 users, load average: 3.18, 2.26, 1.62 User-Agent: Mutt/1.5.13 (2006-08-11) X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2006-q4/txt/msg00724.txt.bz2 These patches extend and standardise local_t operations on each architectures, allowing a rich set of atomic operations to be done on per-cpu data with minimal performance impact. On some architectures, there seems to be no difference between the SMP and UP operation (same memory barriers, same LOCking), local.h simply includes asm-generic/local.h, which removes duplicated code. These patches applies on 2.6.20-rc1-git7. It depends on the patch "atomic.h : standardising atomic primitives" Signed-off-by : Mathieu Desnoyers OpenPGP public key: http://krystal.dyndns.org:8080/key/compudj.gpg Key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68