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 ESMTP id 3969060021B for ; Mon, 28 Dec 2009 06:43:47 -0500 (EST) Subject: Re: [RFC PATCH] asynchronous page fault. From: Peter Zijlstra In-Reply-To: <20091228093606.9f2e666c.kamezawa.hiroyu@jp.fujitsu.com> References: <20091225105140.263180e8.kamezawa.hiroyu@jp.fujitsu.com> <1261915391.15854.31.camel@laptop> <20091228093606.9f2e666c.kamezawa.hiroyu@jp.fujitsu.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 28 Dec 2009 12:43:05 +0100 Message-ID: <1262000585.7135.84.camel@laptop> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: KAMEZAWA Hiroyuki Cc: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "minchan.kim@gmail.com" , cl@linux-foundation.org List-ID: On Mon, 2009-12-28 at 09:36 +0900, KAMEZAWA Hiroyuki wrote: > > the hard way > > is to also incorporate the drop-mmap_sem on blocking patches from a > > while ago. > > > "drop-mmap_sem if block" is no help for this false-sharing problem. No but it does help with the problem of RCU-read-lock not being able to sleep. -- 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