From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756000AbbA2IVs (ORCPT ); Thu, 29 Jan 2015 03:21:48 -0500 Received: from LGEMRELSE6Q.lge.com ([156.147.1.121]:50963 "EHLO lgemrelse6q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751807AbbA2IJ6 (ORCPT ); Thu, 29 Jan 2015 03:09:58 -0500 X-Original-SENDERIP: 10.177.220.203 X-Original-MAILFROM: namhyung@kernel.org From: Namhyung Kim To: Arnaldo Carvalho de Melo Cc: Ingo Molnar , Peter Zijlstra , Jiri Olsa , LKML , David Ahern , Adrian Hunter , Andi Kleen , Stephane Eranian , Frederic Weisbecker Subject: [PATCH 05/42] perf tools: Set attr.task bit for a tracking event Date: Thu, 29 Jan 2015 17:06:46 +0900 Message-Id: <1422518843-25818-6-git-send-email-namhyung@kernel.org> X-Mailer: git-send-email 2.2.2 In-Reply-To: <1422518843-25818-1-git-send-email-namhyung@kernel.org> References: <1422518843-25818-1-git-send-email-namhyung@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The perf_event_attr.task bit is to track task (fork and exit) events but it missed to be set by perf_evsel__config(). While it was not a problem in practice since setting other bits (comm/mmap) ended up being in same result, it'd be good to set it explicitly anyway. The attr->task is to track task related events (fork/exit) only but other meta events like comm and mmap[2] also needs the task events. So setting attr->comm and/or attr->mmap causes the kernel emits the task events anyway. So the attr->task is only meaningful when other bits are off but I'd like to set it for completeness. Signed-off-by: Namhyung Kim --- tools/perf/util/evsel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 1d826d63bc20..ea51a90e20a0 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -709,6 +709,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) if (opts->sample_weight) perf_evsel__set_sample_bit(evsel, WEIGHT); + attr->task = track; attr->mmap = track; attr->mmap2 = track && !perf_missing_features.mmap2; attr->comm = track; -- 2.2.2