Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758886Ab1DYTvD (ORCPT ); Mon, 25 Apr 2011 15:51:03 -0400 Received: from casper.infradead.org ([85.118.1.10]:46896 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758831Ab1DYTvA (ORCPT ); Mon, 25 Apr 2011 15:51:00 -0400 Subject: Re: [PATCH 0/4] munmap: Flexible mem unmap operation interface for scheduling latency From: Peter Zijlstra To: Geunsik Lim Cc: Ingo Molnar , Andrew Morton , Thomas Gleixner , "H. Peter Anvin" , Hugh Dickins , Steven Rostedt , Darren Hart , linux-kernel , linux-rt-users In-Reply-To: <1303728272-11408-1-git-send-email-leemgs1@gmail.com> References: <1303728272-11408-1-git-send-email-leemgs1@gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 25 Apr 2011 21:47:17 +0200 Message-ID: <1303760837.4865.22.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 852 Lines: 22 On Mon, 2011-04-25 at 19:44 +0900, Geunsik Lim wrote: > Originally, We aim to not hold locks for too long (for scheduling latency reasons). > So zap pages in ZAP_BLOCK_SIZE byte counts. > This means we need to return the ending mmu_gather to the caller. Please have a look at the mmu_gather rewrite that hit -mm last week, that completely does away with ZAP_BLOCK_SIZE and renders these patches obsolete. Also, -rt doesn't care since it already has preemptible mmu_gather. Furthermore: > +L: linux-rt-users@vger.kernel.org is complete crap, linux-rt-users is _NOT_ a development list. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/