Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271042AbUJUWcB (ORCPT ); Thu, 21 Oct 2004 18:32:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271030AbUJUWbx (ORCPT ); Thu, 21 Oct 2004 18:31:53 -0400 Received: from kinesis.swishmail.com ([209.10.110.86]:28173 "EHLO kinesis.swishmail.com") by vger.kernel.org with ESMTP id S271034AbUJUWbD (ORCPT ); Thu, 21 Oct 2004 18:31:03 -0400 Message-ID: <41783B6C.2040502@techsource.com> Date: Thu, 21 Oct 2004 18:42:52 -0400 From: Timothy Miller MIME-Version: 1.0 To: "Bill Huey (hui)" CC: Jens Axboe , Thomas Gleixner , Rui Nuno Capela , Ingo Molnar , LKML , Lee Revell , mark_h_johnson@raytheon.com, "K.R. Foley" , Adam Heath , Florian Schmidt , Michal Schmidt , Fernando Pablo Lopez-Lezcano Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 References: <20041019124605.GA28896@elte.hu> <20041019180059.GA23113@elte.hu> <20041020094508.GA29080@elte.hu> <30690.195.245.190.93.1098349976.squirrel@195.245.190.93> <1098350190.26758.24.camel@thomas> <20041021095344.GA10531@suse.de> <1098352441.26758.30.camel@thomas> <20041021101103.GC10531@suse.de> <20041021195842.GA23864@nietzsche.lynx.com> <20041021201443.GF32465@suse.de> <20041021202422.GA24555@nietzsche.lynx.com> In-Reply-To: <20041021202422.GA24555@nietzsche.lynx.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 726 Lines: 24 Bill Huey (hui) wrote: > > > You use a semaphore to protect data, a completion isn't protecting data > but preserving a certain kind of wait ordering in the code. The > possibility of overloading the current mutex_t for PI makes for a conceptual > mismatch when used in this case since having a kind of priority for > completions is a bit odd. It's better to flat out use a completion > instead, IMO. > Could you please define "completion" for me in this context? Thanks. - 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/