From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754215AbZKBJY4 (ORCPT ); Mon, 2 Nov 2009 04:24:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754011AbZKBJY4 (ORCPT ); Mon, 2 Nov 2009 04:24:56 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:59423 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753383AbZKBJYz (ORCPT ); Mon, 2 Nov 2009 04:24:55 -0500 Date: Mon, 2 Nov 2009 10:24:49 +0100 From: Ingo Molnar To: Gleb Natapov , Peter Zijlstra , Thomas Gleixner , "H. Peter Anvin" Cc: kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 09/11] Maintain preemptability count even for !CONFIG_PREEMPT kernels Message-ID: <20091102092449.GD8933@elte.hu> References: <1257076590-29559-1-git-send-email-gleb@redhat.com> <1257076590-29559-10-git-send-email-gleb@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1257076590-29559-10-git-send-email-gleb@redhat.com> User-Agent: Mutt/1.5.19 (2009-01-05) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Gleb Natapov wrote: > Do not preempt kernel. Just maintain counter to know if task can sleep. > > Signed-off-by: Gleb Natapov > --- > include/linux/hardirq.h | 6 ++---- > include/linux/preempt.h | 22 ++++++++++++++++------ > kernel/sched.c | 6 ------ > lib/kernel_lock.c | 1 + > 4 files changed, 19 insertions(+), 16 deletions(-) Lack of explanation in the changelog and lack of Cc:s. This whole patch-set should be Cc:-ed to a lot more people, and the acks of various maintainers are needed before it can be applied. Ingo