From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756744AbcAMKVP (ORCPT ); Wed, 13 Jan 2016 05:21:15 -0500 Received: from mail-wm0-f68.google.com ([74.125.82.68]:35326 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751607AbcAMKVM (ORCPT ); Wed, 13 Jan 2016 05:21:12 -0500 Date: Wed, 13 Jan 2016 11:21:07 +0100 From: Ingo Molnar To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Stephane Eranian , Namhyung Kim , LKML , Jiri Olsa , Namhyung Kim , Adrian Hunter , "ak@linux.intel.com" Subject: Re: [RFC] perf record: missing buildid for callstack modules Message-ID: <20160113102107.GA9644@gmail.com> References: <20160112103943.GA6310@gmail.com> <20160112113521.GC6357@twins.programming.kicks-ass.net> <20160112121805.GA32199@gmail.com> <20160112134012.GF6357@twins.programming.kicks-ass.net> <20160112143805.GX18367@kernel.org> <20160112153440.GJ6357@twins.programming.kicks-ass.net> <20160112154812.GH18367@kernel.org> <20160112161027.GN6357@twins.programming.kicks-ass.net> <20160112162719.GX6373@twins.programming.kicks-ass.net> <20160112171517.GI18367@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160112171517.GI18367@kernel.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Arnaldo Carvalho de Melo wrote: > > And this would (obviously) be a good time to see what else we'd like to > > stuff in there. > > Perhaps a version number? Else we'll be using those reserved bits again > when we decide to introduce MMAP4 ;-\ No version numbers please. Cannot we have a size field and be done with it? The size is the 'version', if we only ever expand the record. (which is the typical case) Thanks, Ingo