From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932175AbbBZLcS (ORCPT ); Thu, 26 Feb 2015 06:32:18 -0500 Received: from terminus.zytor.com ([198.137.202.10]:52100 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752883AbbBZLcO (ORCPT ); Thu, 26 Feb 2015 06:32:14 -0500 Date: Thu, 26 Feb 2015 03:31:31 -0800 From: tip-bot for Arnaldo Carvalho de Melo Message-ID: Cc: namhyung@kernel.org, jolsa@redhat.com, tglx@linutronix.de, fweisbec@gmail.com, mingo@kernel.org, adrian.hunter@intel.com, dsahern@gmail.com, eranian@google.com, dzickus@redhat.com, peterz@infradead.org, efault@gmx.de, hpa@zytor.com, linux-kernel@vger.kernel.org, bp@suse.de, acme@redhat.com Reply-To: fweisbec@gmail.com, tglx@linutronix.de, namhyung@kernel.org, jolsa@redhat.com, eranian@google.com, mingo@kernel.org, adrian.hunter@intel.com, dsahern@gmail.com, dzickus@redhat.com, peterz@infradead.org, efault@gmx.de, acme@redhat.com, linux-kernel@vger.kernel.org, bp@suse.de, hpa@zytor.com To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf evlist: Introduce set_filter_pid method Git-Commit-ID: cfd70a26aadf0a9af80bbce035e5760736727a94 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: cfd70a26aadf0a9af80bbce035e5760736727a94 Gitweb: http://git.kernel.org/tip/cfd70a26aadf0a9af80bbce035e5760736727a94 Author: Arnaldo Carvalho de Melo AuthorDate: Sat, 21 Feb 2015 10:09:55 -0800 Committer: Arnaldo Carvalho de Melo CommitDate: Sun, 22 Feb 2015 22:14:25 -0300 perf evlist: Introduce set_filter_pid method To filter out events for a certain pid, for instance, when tracing system wide, so that the tracer itself doesn't creates an event loop. Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Don Zickus Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-byoia9dzu4gmkdv87etnd9zf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evlist.c | 13 +++++++++++++ tools/perf/util/evlist.h | 1 + 2 files changed, 14 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a8b2c57..39302a4 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1085,6 +1085,19 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter) return err; } +int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid) +{ + char *filter; + int ret; + + if (asprintf(&filter, "common_pid != %d", pid) < 0) + return -1; + + ret = perf_evlist__set_filter(evlist, filter); + free(filter); + return ret; +} + bool perf_evlist__valid_sample_type(struct perf_evlist *evlist) { struct perf_evsel *pos; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index c94a9e0..715fa3a 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -77,6 +77,7 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist, const char *sys, const char *name, void *handler); int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter); +int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid); struct perf_evsel * perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);