From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759226AbYD1FLS (ORCPT ); Mon, 28 Apr 2008 01:11:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750951AbYD1FLF (ORCPT ); Mon, 28 Apr 2008 01:11:05 -0400 Received: from netops-testserver-3-out.sgi.com ([192.48.171.28]:48971 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750898AbYD1FLF (ORCPT ); Mon, 28 Apr 2008 01:11:05 -0400 Date: Mon, 28 Apr 2008 15:10:40 +1000 From: David Chinner To: Matthew Wilcox Cc: linux-kernel@vger.kernel.org, Stephen Rothwell Subject: Re: Announce: Semaphore-Removal tree Message-ID: <20080428051040.GH103491721@sgi.com> References: <20080425170021.GH14990@parisc-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080425170021.GH14990@parisc-linux.org> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 25, 2008 at 11:00:21AM -0600, Matthew Wilcox wrote: > > It's been a Good Idea for a while to use mutexes instead of > semaphores where possible. Additional debuggability, better optimised, > better-enforced semantics, etc. > > Obviously, there are some places that can't be converted to mutexes. > I'm not proposing blind changes. Matthew, what's the plan for code using semaphores that cannot be easily converted to something else? e.g. XFS? Cheers, Dave. -- Dave Chinner Principal Engineer SGI Australian Software Group