From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753512AbXDVHD0 (ORCPT ); Sun, 22 Apr 2007 03:03:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754117AbXDVHD0 (ORCPT ); Sun, 22 Apr 2007 03:03:26 -0400 Received: from holomorphy.com ([66.93.40.71]:56924 "EHLO holomorphy.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753512AbXDVHDZ (ORCPT ); Sun, 22 Apr 2007 03:03:25 -0400 Date: Sun, 22 Apr 2007 00:02:38 -0700 From: William Lee Irwin III To: Ulrich Drepper Cc: Linus Torvalds , Kyle Moffett , Willy Tarreau , Ingo Molnar , Con Kolivas , linux-kernel@vger.kernel.org, Andrew Morton , Nick Piggin , Mike Galbraith , Arjan van de Ven , Peter Williams , Thomas Gleixner , caglar@pardus.org.tr, Gene Heskett Subject: Re: [REPORT] cfs-v4 vs sd-0.44 Message-ID: <20070422070238.GH2986@holomorphy.com> References: <20070420140457.GA14017@elte.hu> <20070421121235.GA2044@1wt.eu> <20070421154614.GA26169@elte.hu> <20070421161818.GC7840@1wt.eu> <20070421164241.GF2986@holomorphy.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 4/21/07, Linus Torvalds wrote: >> And how the hell do you imagine you'd even *know* what thread holds the >> futex? On Sat, Apr 21, 2007 at 06:46:58PM -0700, Ulrich Drepper wrote: > We know this in most cases. This is information recorded, for > instance, in the mutex data structure. You might have missed my "the > interface must be extended" part. This means the PID of the owning > thread will have to be passed done. For PI mutexes this is not > necessary since the kernel already has access to the information. I'm just looking for what people want the API to be here. With that in hand we can just go out and do whatever needs to be done. -- wli