Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759945AbYC0NbL (ORCPT ); Thu, 27 Mar 2008 09:31:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758371AbYC0NaW (ORCPT ); Thu, 27 Mar 2008 09:30:22 -0400 Received: from smtp.polymtl.ca ([132.207.4.11]:45324 "EHLO smtp.polymtl.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757974AbYC0NaU (ORCPT ); Thu, 27 Mar 2008 09:30:20 -0400 Message-Id: <20080327132057.449831367@polymtl.ca> User-Agent: quilt/0.46-1 Date: Thu, 27 Mar 2008 09:20:57 -0400 From: Mathieu Desnoyers To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org Subject: [patch for 2.6.26 0/7] Architecture Independent Markers X-Poly-FromMTA: (dijkstra.casi.polymtl.ca [132.207.72.10]) at Thu, 27 Mar 2008 13:30:13 +0000 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1680 Lines: 40 Hi Andrew, After a few RFC rounds, I propose these markers for 2.6.26. They include work done after comments from the memory management community. Most of them have been used by the LTTng project for about 2 years. The first patch in the patchset does a small addition to the markers API : it allows marker sites to declare a _trace_mark marker. I forces use of a marker which does not rely on an instruction modification mechanism to enable itself. It's required in some kernel code paths (lockdep, printk, some traps, __init and __exit code). I would prefer to get this in before the immediate values, since the immediate values optimization, which depends on the rework of x86 alternatives, paravirt and kprobes currently being merged, takes longer than expected. I do not expect this marker set to cover every bits of the kernel (and this is not its purpose). It's just a good start that has proven to be very useful to the LTTng community in the past 2 years. This patchset applies over 2.6.25-rc7 in this order : markers-define-non-optimized-marker.patch lttng-instrumentation-fs.patch lttng-instrumentation-ipc.patch lttng-instrumentation-kernel.patch lttng-instrumentation-mm.patch lttng-instrumentation-net.patch lttng-instrumentation-lib.patch Mathieu -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 -- 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/