Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761293AbZLPK2L (ORCPT ); Wed, 16 Dec 2009 05:28:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755288AbZLPK2J (ORCPT ); Wed, 16 Dec 2009 05:28:09 -0500 Received: from one.firstfloor.org ([213.235.205.2]:42726 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761263AbZLPK2I (ORCPT ); Wed, 16 Dec 2009 05:28:08 -0500 Date: Wed, 16 Dec 2009 11:28:06 +0100 From: Andi Kleen To: KAMEZAWA Hiroyuki Cc: Andi Kleen , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , cl@linux-foundation.org, "akpm@linux-foundation.org" , "mingo@elte.hu" , minchan.kim@gmail.com Subject: Re: [mm][RFC][PATCH 0/11] mm accessor updates. Message-ID: <20091216102806.GC15031@basil.fritz.box> References: <20091216120011.3eecfe79.kamezawa.hiroyu@jp.fujitsu.com> <20091216101107.GA15031@basil.fritz.box> <20091216191312.f4655dac.kamezawa.hiroyu@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091216191312.f4655dac.kamezawa.hiroyu@jp.fujitsu.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 729 Lines: 20 > > Also the patches didn't fare too well in testing unfortunately. > > > > I suspect we'll rather need multiple locks split per address > > space range. > > This set doesn't include any changes of the logic. Just replace all mmap_sem. > I think this is good start point (for introducing another logic etc..) The problem is that for range locking simple wrapping the locks in macros is not enough. You need more changes. -Andi -- ak@linux.intel.com -- Speaking for myself only. -- 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/