From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757788Ab2AKRGm (ORCPT ); Wed, 11 Jan 2012 12:06:42 -0500 Received: from mail-gx0-f174.google.com ([209.85.161.174]:59292 "EHLO mail-gx0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757153Ab2AKRGl (ORCPT ); Wed, 11 Jan 2012 12:06:41 -0500 Date: Wed, 11 Jan 2012 09:06:35 -0800 From: Tejun Heo To: Namhyung Kim Cc: axboe@kernel.dk, mingo@redhat.com, rostedt@goodmis.org, fweisbec@gmail.com, teravest@google.com, slavapestov@google.com, ctalbott@google.com, dhsharp@google.com, linux-kernel@vger.kernel.org, winget@google.com, Chanho Park , namhyung@gmail.com Subject: Re: [PATCH RESEND 9/9] block, trace: implement ioblame - IO tracer with origin tracking Message-ID: <20120111170635.GE26832@google.com> References: <1326220106-5765-1-git-send-email-tj@kernel.org> <1326220106-5765-10-git-send-email-tj@kernel.org> <20120111013212.GA6843@dhcp-172-17-108-109.mtv.corp.google.com> <4F0D291A.8030205@lge.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4F0D291A.8030205@lge.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Wed, Jan 11, 2012 at 03:15:54PM +0900, Namhyung Kim wrote: > How about adding another tracepoint for intent creation to provide > raw data as well, somewhere in iob_get_intent() or > iob_intent_create() maybe? It can be useful to get those data for > further processing IMHO. While I don't particularly object to that, information and notification (via inotify) for that is already available via ioblame/intents file which we need regardless of the new tracepoint, so it's kinda redundant, isn't it? Thanks. -- tejun