From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752250Ab3LKMkD (ORCPT ); Wed, 11 Dec 2013 07:40:03 -0500 Received: from mga09.intel.com ([134.134.136.24]:41746 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752207Ab3LKMj5 (ORCPT ); Wed, 11 Dec 2013 07:39:57 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,871,1378882800"; d="scan'208";a="450497841" From: Alexander Shishkin To: Peter Zijlstra , Arnaldo Carvalho de Melo Cc: Ingo Molnar , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Mike Galbraith , Namhyung Kim , Paul Mackerras , Stephane Eranian , Andi Kleen , Adrian Hunter Subject: [PATCH v0 23/71] perf evlist: Add perf_evlist__to_front() Date: Wed, 11 Dec 2013 14:36:35 +0200 Message-Id: <1386765443-26966-24-git-send-email-alexander.shishkin@linux.intel.com> X-Mailer: git-send-email 1.8.4.rc2 In-Reply-To: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> References: <1386765443-26966-1-git-send-email-alexander.shishkin@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Adrian Hunter Add a function to move a selected event to the front of the list. This is needed because it is not possible to use the PERF_EVENT_IOC_SET_OUTPUT IOCTL from an Instruction Tracing event to a non-Instruction Tracing event. Thus the Instruction Tracing event must come first. Signed-off-by: Adrian Hunter --- tools/perf/util/evlist.c | 17 +++++++++++++++++ tools/perf/util/evlist.h | 3 +++ 2 files changed, 20 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index f9dbf5f..93683bc 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1216,3 +1216,20 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused, return 0; } + +void perf_evlist__to_front(struct perf_evlist *evlist, + struct perf_evsel *move_evsel) +{ + struct perf_evsel *evsel, *n; + LIST_HEAD(move); + + if (move_evsel == perf_evlist__first(evlist)) + return; + + list_for_each_entry_safe(evsel, n, &evlist->entries, node) { + if (evsel->leader == move_evsel->leader) + list_move_tail(&evsel->node, &move); + } + + list_splice(&move, &evlist->entries); +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 8a04aae..9f64ede 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -194,5 +194,8 @@ static inline void perf_mmap__write_tail(struct perf_mmap *md, } bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str); +void perf_evlist__to_front(struct perf_evlist *evlist, + struct perf_evsel *move_evsel); + #endif /* __PERF_EVLIST_H */ -- 1.8.5.1