From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755703AbZFCNHY (ORCPT ); Wed, 3 Jun 2009 09:07:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753563AbZFCNHM (ORCPT ); Wed, 3 Jun 2009 09:07:12 -0400 Received: from hera.kernel.org ([140.211.167.34]:44790 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753054AbZFCNHK (ORCPT ); Wed, 3 Jun 2009 09:07:10 -0400 Date: Wed, 3 Jun 2009 13:06:33 GMT From: tip-bot for Peter Zijlstra To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, acme@redhat.com, paulus@samba.org, hpa@zytor.com, mingo@redhat.com, jkacur@redhat.com, a.p.zijlstra@chello.nl, efault@gmx.de, mtosatti@redhat.com, tglx@linutronix.de, cjashfor@linux.vnet.ibm.com, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, paulus@samba.org, acme@redhat.com, linux-kernel@vger.kernel.org, jkacur@redhat.com, a.p.zijlstra@chello.nl, efault@gmx.de, mtosatti@redhat.com, tglx@linutronix.de, cjashfor@linux.vnet.ibm.com, mingo@elte.hu In-Reply-To: References: Subject: [tip:perfcounters/core] perf_counter: Add a comm hook for pure fork()s Message-ID: Git-Commit-ID: 226f62fdd53d5b2c74e242aa11f6ad43d0285d3f X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Wed, 03 Jun 2009 13:06:34 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 226f62fdd53d5b2c74e242aa11f6ad43d0285d3f Gitweb: http://git.kernel.org/tip/226f62fdd53d5b2c74e242aa11f6ad43d0285d3f Author: Peter Zijlstra AuthorDate: Wed, 3 Jun 2009 11:23:56 +0200 Committer: Ingo Molnar CommitDate: Wed, 3 Jun 2009 14:14:30 +0200 perf_counter: Add a comm hook for pure fork()s I noticed missing COMM events and found that we missed reporting them for pure forks. Signed-off-by: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Corey Ashford Cc: Marcelo Tosatti Cc: Arnaldo Carvalho de Melo Cc: Thomas Gleixner Cc: John Kacur LKML-Reference: Signed-off-by: Ingo Molnar --- kernel/fork.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index 23bf757..b7d7a9f 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1412,6 +1412,12 @@ long do_fork(unsigned long clone_flags, if (clone_flags & CLONE_VFORK) { p->vfork_done = &vfork; init_completion(&vfork); + } else { + /* + * vfork will do an exec which will call + * set_task_comm() + */ + perf_counter_comm(p); } audit_finish_fork(p);