Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932400AbZLRSnY (ORCPT ); Fri, 18 Dec 2009 13:43:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753961AbZLRSnX (ORCPT ); Fri, 18 Dec 2009 13:43:23 -0500 Received: from one.firstfloor.org ([213.235.205.2]:48350 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753592AbZLRSnX (ORCPT ); Fri, 18 Dec 2009 13:43:23 -0500 Date: Fri, 18 Dec 2009 19:43:21 +0100 From: Andi Kleen To: Christoph Lameter Cc: Ingo Molnar , Avi Kivity , Peter Zijlstra , Andi Kleen , "Paul E. McKenney" , KAMEZAWA Hiroyuki , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "akpm@linux-foundation.org" , minchan.kim@gmail.com Subject: Re: [mm][RFC][PATCH 0/11] mm accessor updates. Message-ID: <20091218184321.GC17509@basil.fritz.box> References: <20091217175338.GL9804@basil.fritz.box> <20091217190804.GB6788@linux.vnet.ibm.com> <20091217195530.GM9804@basil.fritz.box> <1261080855.27920.807.camel@laptop> <20091218051754.GC417@elte.hu> <4B2BB52A.7050103@redhat.com> <20091218171240.GB1354@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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: 684 Lines: 18 > The existing locking APIs are all hiding lock details at various levels. > We have various specific APIs for specialized locks already Page locking > etc. > > How can we make progress on this if we cannot look at the mmap_sem The point was to really make progress on vma locking we need new semantics (finer grained range locking) that cannot be provided by a simple wrapper. -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/