From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751920AbdKMBk0 (ORCPT ); Sun, 12 Nov 2017 20:40:26 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:10523 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751418AbdKMBjf (ORCPT ); Sun, 12 Nov 2017 20:39:35 -0500 From: Wang Nan To: , , , , CC: Wang Nan Subject: [PATCH 5/7] perf tests: Set evlist of test__task_exit() to !overwrite Date: Mon, 13 Nov 2017 01:38:07 +0000 Message-ID: <20171113013809.212417-6-wangnan0@huawei.com> X-Mailer: git-send-email 2.10.1 In-Reply-To: <20171113013809.212417-1-wangnan0@huawei.com> References: <20171113013809.212417-1-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.193.248] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090201.5A08F7CE.0036,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: b71ca9d0323d1f2c1bbe98da2c15238b Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Changing ringbuffer to !overwrite in this task is harmless because this test uses a very low frequency (1) and using a very simple program (true). There should have only 3 events in the whole test. Overwriting is impossible to happen. Signed-off-by: Wang Nan --- tools/perf/tests/task-exit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c index f0881d0..4fb6609 100644 --- a/tools/perf/tests/task-exit.c +++ b/tools/perf/tests/task-exit.c @@ -96,7 +96,7 @@ int test__task_exit(struct test *test __maybe_unused, int subtest __maybe_unused goto out_delete_evlist; } - if (perf_evlist__mmap(evlist, 128, true) < 0) { + if (perf_evlist__mmap(evlist, 128, false) < 0) { pr_debug("failed to mmap events: %d (%s)\n", errno, str_error_r(errno, sbuf, sizeof(sbuf))); goto out_delete_evlist; -- 2.10.1