Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265291AbTIJREG (ORCPT ); Wed, 10 Sep 2003 13:04:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265297AbTIJREG (ORCPT ); Wed, 10 Sep 2003 13:04:06 -0400 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:38558 "EHLO dualathlon.random") by vger.kernel.org with ESMTP id S265291AbTIJREC (ORCPT ); Wed, 10 Sep 2003 13:04:02 -0400 Date: Wed, 10 Sep 2003 19:05:34 +0200 From: Andrea Arcangeli To: Luca Veraldi Cc: linux-kernel@vger.kernel.org Subject: Re: Efficient IPC mechanism on Linux Message-ID: <20030910170534.GM21086@dualathlon.random> References: <00f201c376f8$231d5e00$beae7450@wssupremo> <20030910165944.GL21086@dualathlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030910165944.GL21086@dualathlon.random> User-Agent: Mutt/1.4i X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1047 Lines: 28 On Wed, Sep 10, 2003 at 06:59:44PM +0200, Andrea Arcangeli wrote: > About the implementation - the locking looks very wrong: you miss the > page_table_lock in all the pte walking, you take a totally worthless > lock_kernel() all over the place for no good reason, and the sorry for the self followup, but I just read another message where you mention 2.2, if that was for 2.2 the locking was the ok. all other problems remains though. Andrea /* * If you refuse to depend on closed software for a critical * part of your business, these links may be useful: * * rsync.kernel.org::pub/scm/linux/kernel/bkcvs/linux-2.5/ * rsync.kernel.org::pub/scm/linux/kernel/bkcvs/linux-2.4/ * http://www.cobite.com/cvsps/ * * svn://svn.kernel.org/linux-2.6/trunk * svn://svn.kernel.org/linux-2.4/trunk */ - 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/