From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964808AbVLNQSB (ORCPT ); Wed, 14 Dec 2005 11:18:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964813AbVLNQSB (ORCPT ); Wed, 14 Dec 2005 11:18:01 -0500 Received: from gateway-1237.mvista.com ([12.44.186.158]:59120 "EHLO hermes.mvista.com") by vger.kernel.org with ESMTP id S964808AbVLNQSA (ORCPT ); Wed, 14 Dec 2005 11:18:00 -0500 Subject: Re: [PATCH -RT] Add softirq waitqueue for CONFIG_PREEMPT_SOFTIRQ (was: Re: [ANNOUNCE] 2.6.15-rc5-hrt2 ...) From: Daniel Walker To: Steven Rostedt Cc: tglx@linutronix.de, Ingo Molnar , john stultz , LKML In-Reply-To: <1134575022.18921.56.camel@localhost.localdomain> References: <1134385343.4205.72.camel@tglx.tec.linutronix.de> <1134507927.18921.26.camel@localhost.localdomain> <20051214084019.GA18708@elte.hu> <20051214084333.GA20284@elte.hu> <1134568080.18921.42.camel@localhost.localdomain> <1134568867.4275.7.camel@tglx.tec.linutronix.de> <1134575022.18921.56.camel@localhost.localdomain> Content-Type: text/plain Date: Wed, 14 Dec 2005 08:17:57 -0800 Message-Id: <1134577078.27681.5.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2005-12-14 at 10:43 -0500, Steven Rostedt wrote: > I really would like to add priority inheritance to waitqueues, so things > like this can benefit from PI as well. > I submitted a generic PI patch a while back, but the design was not that great. It had callback functions for getting the lock owner , and for signaling when changing priorities .. Here it is, http://lkml.org/lkml/2005/5/31/288 I think it may be pretty trivial to add priority sorted waitqueues by just adding a plist . Daniel