Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757956AbYHST30 (ORCPT ); Tue, 19 Aug 2008 15:29:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750824AbYHST3K (ORCPT ); Tue, 19 Aug 2008 15:29:10 -0400 Received: from courier.cs.helsinki.fi ([128.214.9.1]:56631 "EHLO mail.cs.helsinki.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753304AbYHST3J (ORCPT ); Tue, 19 Aug 2008 15:29:09 -0400 Message-ID: <48AB1E43.2010408@cs.helsinki.fi> Date: Tue, 19 Aug 2008 22:25:55 +0300 From: Pekka Enberg User-Agent: Thunderbird 2.0.0.16 (Macintosh/20080707) MIME-Version: 1.0 To: Eduard - Gabriel Munteanu CC: Mathieu Desnoyers , "Randy.Dunlap" , linux-kernel@vger.kernel.org, linux-mm@kvack.org, mpm@selenic.com, tglx@linutronix.de, rostedt@goodmis.org, cl@linux-foundation.org, tzanussi@gmail.com Subject: Re: [PATCH 1/5] Revert "kmemtrace: fix printk format warnings" References: <1219167807-5407-1-git-send-email-eduard.munteanu@linux360.ro> <20080819175440.GA5435@localhost> <20080819181652.GA29757@Krystal> <20080819183203.GB5520@localhost> In-Reply-To: <20080819183203.GB5520@localhost> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1412 Lines: 35 Eduard - Gabriel Munteanu wrote: > On Tue, Aug 19, 2008 at 02:16:53PM -0400, Mathieu Desnoyers wrote: >> Question : >> >> Is this kmemtrace marker meant to be exposed to userspace ? >> >> I suspect not. In all case, not directly. I expect in-kernel probes to >> be connected on these markers which will get the arguments they need, >> and maybe access the inner data structures. Anyhow, tracepoints should >> be used for that, not markers. You can later put markers in the probes >> which are themselves connected to tracepoints. >> >> Tracepoints = in-kernel tracing API. >> >> Markers = Data-formatting tracing API, meant to export the data either >> to user-space in text or binary format. >> >> See >> >> http://git.kernel.org/?p=linux/kernel/git/compudj/linux-2.6-lttng.git;a=shortlog >> >> tracepoint-related patches. > > I think we're ready to try tracepoints. Pekka, could you merge Mathieu's > tracepoints or otherwise provide a branch where I could submit a > tracepoint conversion patch for kmemtrace? Sorry, that's too much of a hassle for me. I'll happily take your conversion patch once tracepoints hit mainline. Mathieu, are you aiming for 2.6.28? -- 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/