Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754148AbZLCQMP (ORCPT ); Thu, 3 Dec 2009 11:12:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753357AbZLCQMP (ORCPT ); Thu, 3 Dec 2009 11:12:15 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46642 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752496AbZLCQMO (ORCPT ); Thu, 3 Dec 2009 11:12:14 -0500 Message-ID: <4B17E337.8070301@redhat.com> Date: Thu, 03 Dec 2009 11:11:35 -0500 From: Masami Hiramatsu User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.4pre) Gecko/20091014 Fedora/3.0-2.8.b4.fc11 Thunderbird/3.0b4 MIME-Version: 1.0 To: rostedt@goodmis.org CC: Mathieu Desnoyers , akpm@linux-foundation.org, Ingo Molnar , mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, randy.dunlap@oracle.com, wcohen@redhat.com, fweisbec@gmail.com, tglx@linutronix.de, jbaron@redhat.com, linux-tip-commits@vger.kernel.org, Christoph Hellwig Subject: Re: trace/events: DECLARE vs DEFINE semantic References: <20091202144334.GA30359@elte.hu> <1259765735.12870.42.camel@gandalf.stny.rr.com> <20091202162715.GB9710@Krystal> <1259773888.12870.61.camel@gandalf.stny.rr.com> <20091202180633.GF9710@Krystal> <1259777987.12870.70.camel@gandalf.stny.rr.com> <20091202190135.GA23316@Krystal> <1259781578.12870.78.camel@gandalf.stny.rr.com> <4B16EC06.6010706@redhat.com> <1259794005.12870.102.camel@gandalf.stny.rr.com> <20091202231019.GB14770@Krystal> <4B1737E2.6010502@redhat.com> <1259813228.12870.108.camel@gandalf.stny.rr.com> <4B17C25A.8090703@redhat.com> <1259848493.12870.114.camel@gandalf.stny.rr.com> <4B17D9D1.7010402@redhat.com> <1259855773.12870.137.camel@gandalf.stny.rr.com> In-Reply-To: <1259855773.12870.137.camel@gandalf.stny.rr.com> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1308 Lines: 38 Steven Rostedt wrote: > On Thu, 2009-12-03 at 10:31 -0500, Masami Hiramatsu wrote: >> Steven Rostedt wrote: > >>>> Would you mean putting those headers in sub-system's directory? >>>> (e.g. fs/ext4/) >>>> In that case, a problem will happen when user want to hook those >>>> tracepoint from their module, because it is hard to find those >>>> local headers. >>> >>> Why? Modules usually do have their own headers in their sub system. >> >> Module's local headers usually uses only from itself. Other modules >> may not touch it. However, AFAIK, event definitions must be referred >> by event consumer which is another module. IOW, those local headers >> will not be included in kernel-headers/kernel-devel package :-( > > I'm a little confused. Who is the event consumer? The trace point user? > The one that hooks into the tracepoint? Ah, I meant the tracepoint user module, not the ftrace event consumer. Thank you, -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America), Inc. Software Solutions Division e-mail: mhiramat@redhat.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/