Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932987Ab2FABHJ (ORCPT ); Thu, 31 May 2012 21:07:09 -0400 Received: from e23smtp02.au.ibm.com ([202.81.31.144]:38256 "EHLO e23smtp02.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932956Ab2FABHH (ORCPT ); Thu, 31 May 2012 21:07:07 -0400 Date: Fri, 1 Jun 2012 11:06:47 +1000 From: Christopher Yeoh To: Borislav Petkov Cc: Andrew Morton , Linus Torvalds , LKML Subject: Re: CROSS_MEMORY_ATTACH default y? Message-ID: <20120601110647.2c446aa7@rockpopper> In-Reply-To: <20120531154224.GL14515@aftab.osrc.amd.com> References: <20120531153512.GK14515@aftab.osrc.amd.com> <20120531154224.GL14515@aftab.osrc.amd.com> Organization: IBM X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit x-cbid: 12053114-5490-0000-0000-000001839077 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 871 Lines: 31 On Thu, 31 May 2012 17:42:24 +0200 Borislav Petkov wrote: > + LKML. > > On Thu, May 31, 2012 at 05:35:12PM +0200, Borislav Petkov wrote: > > Hi, > > > > can you please explain why CROSS_MEMORY_ATTACH is default y? Why > > should those process_vm_{readv,writev} syscalls be enabled by > > default? There was a bit of a discussion at the time I submitted the patch: https://lkml.org/lkml/2012/4/23/606 Basically CMA had been in for a while already in a released kernel before I submitted a patch to allow it to be disabled. So the patch preserves existing behaviour. Regards, Chris -- cyeoh@au1.ibm.com -- 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/