From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753509AbaHLPH5 (ORCPT ); Tue, 12 Aug 2014 11:07:57 -0400 Received: from mga01.intel.com ([192.55.52.88]:20192 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753190AbaHLPG7 (ORCPT ); Tue, 12 Aug 2014 11:06:59 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,849,1400050800"; d="scan'208";a="575603042" From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Paul Mackerras , Stephane Eranian Subject: [PATCH 1/4] perf tools: Fix CLOEXEC probe for perf_event_paranoid == 2 Date: Tue, 12 Aug 2014 18:04:28 +0300 Message-Id: <1407855871-15024-2-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1407855871-15024-1-git-send-email-adrian.hunter@intel.com> References: <1407855871-15024-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With /proc/sys/kernel/perf_event_paranoid set to 2, the probe of PERF_FLAG_FD_CLOEXEC would fail. Fix by excluding kernel profiling from the probe event. Signed-off-by: Adrian Hunter --- tools/perf/util/cloexec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c index 5073c01..000047c 100644 --- a/tools/perf/util/cloexec.c +++ b/tools/perf/util/cloexec.c @@ -11,6 +11,7 @@ static int perf_flag_probe(void) struct perf_event_attr attr = { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_CLOCK, + .exclude_kernel = 1, }; int fd; int err; -- 1.8.3.2