From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail191.messagelabs.com (mail191.messagelabs.com [216.82.242.19]) by kanga.kvack.org (Postfix) with SMTP id 450F26B0062 for ; Mon, 23 Nov 2009 12:30:26 -0500 (EST) Date: Mon, 23 Nov 2009 11:30:02 -0600 (CST) From: Christoph Lameter Subject: Re: [PATCH v2 10/12] Maintain preemptability count even for !CONFIG_PREEMPT kernels In-Reply-To: <20091123155851.GU2999@redhat.com> Message-ID: References: <1258985167-29178-1-git-send-email-gleb@redhat.com> <1258985167-29178-11-git-send-email-gleb@redhat.com> <1258990455.4531.594.camel@laptop> <20091123155851.GU2999@redhat.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org To: Gleb Natapov Cc: Peter Zijlstra , kvm@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, avi@redhat.com, mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com, riel@redhat.com List-ID: This adds significant overhead for the !PREEMPT case adding lots of code in critical paths all over the place. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org