From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761435AbXH0QO5 (ORCPT ); Mon, 27 Aug 2007 12:14:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759733AbXH0QFj (ORCPT ); Mon, 27 Aug 2007 12:05:39 -0400 Received: from smtp.polymtl.ca ([132.207.4.11]:45175 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759473AbXH0QFg (ORCPT ); Mon, 27 Aug 2007 12:05:36 -0400 Message-Id: <20070827160229.324564339@polymtl.ca> User-Agent: quilt/0.46-1 Date: Mon, 27 Aug 2007 12:02:29 -0400 From: Mathieu Desnoyers To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org Subject: [patch 0/2] Sort module list for /proc/modules seq file reads X-Poly-FromMTA: (dijkstra.casi.polymtl.ca [132.207.72.10]) at Mon, 27 Aug 2007 16:05:30 +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrew, Here is the updated version of the module list sort for coherent seq file reads. It includes, in the comments, a byte-by-byte test case that shows the race it solves. It has been updated since the last post to make sure the byte-by-byte read works correctly by using "pos" instead of m->private as position indicator. Only /proc/modules is provided as a user, but it should eventually be used by other kernel parts, such as kallsyms, to make sure they protect themselves from list modification while they iterate on them. It applies to 2.6.23-rc3-mm1. Mathieu -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68