Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757333AbZAGBiz (ORCPT ); Tue, 6 Jan 2009 20:38:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754681AbZAGBiq (ORCPT ); Tue, 6 Jan 2009 20:38:46 -0500 Received: from one.firstfloor.org ([213.235.205.2]:57368 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754583AbZAGBip (ORCPT ); Tue, 6 Jan 2009 20:38:45 -0500 To: Nick Piggin Cc: Christoph Hellwig , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: 2.6.29 -mm merge plans From: Andi Kleen References: <20090105004300.19ed52d1.akpm@linux-foundation.org> <20090106225744.GA10553@infradead.org> <20090106151131.b6c4ff0b.akpm@linux-foundation.org> <20090106232418.GB25103@infradead.org> <20090107011448.GB3390@wotan.suse.de> Date: Wed, 07 Jan 2009 02:38:45 +0100 In-Reply-To: <20090107011448.GB3390@wotan.suse.de> (Nick Piggin's message of "Wed, 7 Jan 2009 02:14:48 +0100") Message-ID: <87tz8b3nfe.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) 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: 668 Lines: 20 Nick Piggin writes: > > I can't see a problem with putting a global mutex around sys_sync (almost > by definition, any app in the last 10+ years that calls sys_sync is not > performance critical). Hmm, but sync() used to (is still?) livelocky and when it takes a minute or so to flush (and I've seen that) do you really want any other sync user to block for a minute too? -Andi -- ak@linux.intel.com -- 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/