From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id B0E4C6B003D for ; Sun, 10 May 2009 00:06:40 -0400 (EDT) Date: Sat, 9 May 2009 20:58:57 -0700 From: Andrew Morton Subject: Re: [PATCH 4/8] proc: export more page flags in /proc/kpageflags Message-Id: <20090509205857.acadb20a.akpm@linux-foundation.org> In-Reply-To: <20090509104409.GB16138@elte.hu> References: <20090508105320.316173813@intel.com> <20090508111031.020574236@intel.com> <20090508114742.GB17129@elte.hu> <20090508132452.bafa287a.akpm@linux-foundation.org> <20090509104409.GB16138@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Ingo Molnar Cc: fengguang.wu@intel.com, fweisbec@gmail.com, rostedt@goodmis.org, a.p.zijlstra@chello.nl, lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org, kosaki.motohiro@jp.fujitsu.com, andi@firstfloor.org, mpm@selenic.com, adobriyan@gmail.com, linux-mm@kvack.org List-ID: On Sat, 9 May 2009 12:44:09 +0200 Ingo Molnar wrote: > > * Andrew Morton wrote: > > > On Fri, 8 May 2009 13:47:42 +0200 > > Ingo Molnar wrote: > > > > > > > > * Wu Fengguang wrote: > > > > > > > Export all page flags faithfully in /proc/kpageflags. > > > > > > Ongoing objection and NAK against extended haphazard exporting of > > > kernel internals via an ad-hoc ABI via ad-hoc, privatized > > > instrumentation that only helps the MM code and nothing else. > > > > You're a year too late. The pagemap interface is useful. > > My NAK is against the extension of this mistake. > > So is your answer to my NAK in essence: > > " We merged crappy MM instrumentation a short year ago, too bad. > And because it was so crappy to be in /proc we are now also > treating it as a hard ABI, not as a debugfs interface - for that > single app that is using it. Furthermore, we are now going to > make the API and ABI even more crappy via patches queued up in > -mm, and we are ignoring NAKs. We are also going to make it even > harder to have sane, generic instrumentation in the upstream > kernel. Deal with it, this is our code and we can mess it up the > way we wish to, it's none of your business." > > right? > If that was my answer, that is what I would have typed. But I in fact typed something quite different. -- 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