From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964780AbVLNOBo (ORCPT ); Wed, 14 Dec 2005 09:01:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964781AbVLNOBo (ORCPT ); Wed, 14 Dec 2005 09:01:44 -0500 Received: from ms-smtp-01.nyroc.rr.com ([24.24.2.55]:7934 "EHLO ms-smtp-01.nyroc.rr.com") by vger.kernel.org with ESMTP id S964780AbVLNOBo (ORCPT ); Wed, 14 Dec 2005 09:01:44 -0500 Date: Wed, 14 Dec 2005 09:01:28 -0500 (EST) From: Steven Rostedt X-X-Sender: rostedt@gandalf.stny.rr.com To: Thomas Gleixner cc: Ingo Molnar , john stultz , Roman Zippel , LKML Subject: Re: [ANNOUNCE] 2.6.15-rc5-hrt2 - hrtimers based high resolution patches In-Reply-To: <1134568867.4275.7.camel@tglx.tec.linutronix.de> Message-ID: 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> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 14 Dec 2005, Thomas Gleixner wrote: > > > > So the fix to this, in the case of preempting the softirq, that we need > > to introduce some wait queue that will allow processes to wait for the > > softirq to finish, and then the softirq will wake up all the processes. > > We had the waitqueue in the ktimer based -rt patches and did not add it > back. > Actually, to save on the memory, I was thinking of a general purpose wait queue, that is either one for all softirqs, or one for each particular softirq, that the softirq handler would wakeup when finished. Thoughts? -- Steve