From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758574AbYBGRg0 (ORCPT ); Thu, 7 Feb 2008 12:36:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756478AbYBGRgS (ORCPT ); Thu, 7 Feb 2008 12:36:18 -0500 Received: from numenor.qualcomm.com ([129.46.51.58]:40706 "EHLO numenor.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756228AbYBGRgQ (ORCPT ); Thu, 7 Feb 2008 12:36:16 -0500 Message-ID: <47AB4188.1050104@qualcomm.com> Date: Thu, 07 Feb 2008 09:36:08 -0800 From: Max Krasnyansky User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Linus Torvalds CC: Andrew Morton , LKML Subject: Re: [git pull] CPU isolation extensions References: <47AA9807.7090402@qualcomm.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, Linus Torvalds wrote: > > On Wed, 6 Feb 2008, Max Krasnyansky wrote: >> Linus, please pull CPU isolation extensions from >> >> git://git.kernel.org/pub/scm/linux/kernel/git/maxk/cpuisol-2.6.git for-linus > > Have these been in -mm and widely discussed etc? I'd like to start more > carefully, and (a) have that controversial last patch not merged initially > and (b) make sure everybody is on the same page wrt this all.. They've been discussed with RT/scheduler/cpuset folks. Andrew is definitely in the loop. He just replied and asked for some fixes and clarifications. He seems to be ok with merging this in general. The last patch may not be as bad as I originally thought. We'll discuss it some more with Andrew. I'll also check with Rusty who wrote the stopmachine in the first place. It actually seems like an overkill at this point. My impression is that it was supposed to be a safety net if some refcounting/locking is not fully safe and may not be needed or as critical anymore. I'm maybe wrong of course. So I'll find that out :) Thanx Max