From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261192AbVFJTkY (ORCPT ); Fri, 10 Jun 2005 15:40:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261187AbVFJTkX (ORCPT ); Fri, 10 Jun 2005 15:40:23 -0400 Received: from mustang.oldcity.dca.net ([216.158.38.3]:28293 "HELO mustang.oldcity.dca.net") by vger.kernel.org with SMTP id S261185AbVFJTkN (ORCPT ); Fri, 10 Jun 2005 15:40:13 -0400 Subject: Re: Attempted summary of "RT patch acceptance" thread From: Lee Revell To: Bill Huey Cc: Andrea Arcangeli , "Paul E. McKenney" , Tim Bird , linux-kernel@vger.kernel.org, tglx@linutronix.de, karim@opersys.com, mingo@elte.hu, pmarques@grupopie.com, bruce@andrew.cmu.edu, nickpiggin@yahoo.com.au, ak@muc.de, sdietrich@mvista.com, dwalker@mvista.com, hch@infradead.org, akpm@osdl.org In-Reply-To: <20050610193926.GA19568@nietzsche.lynx.com> References: <20050608022646.GA3158@us.ibm.com> <42A8D1F3.8070408@am.sony.com> <20050609235026.GE1297@us.ibm.com> <1118372388.32270.6.camel@mindpipe> <20050610154745.GA1300@us.ibm.com> <20050610173728.GA6564@g5.random> <20050610193926.GA19568@nietzsche.lynx.com> Content-Type: text/plain Date: Fri, 10 Jun 2005 15:41:04 -0400 Message-Id: <1118432464.6423.22.camel@mindpipe> Mime-Version: 1.0 X-Mailer: Evolution 2.3.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2005-06-10 at 12:39 -0700, Bill Huey wrote: > Some of it is lack of displine with how various drivers do locking in > that they overload the meaning of a spin_lock, etc... to also disable > preemption and side effects with preempt_count. Making all of this > formal > is a good thing since it clarifies and un-ambiguates those code paths. > It's something that should have been done in the first place Keep in mind there are large subsystems that are already RT safe like ALSA. Lee