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[209.132.180.67]) by mx.google.com with ESMTP id i8si11860486pfr.97.2019.08.26.18.42.20; Mon, 26 Aug 2019 18:42:35 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@akamai.com header.s=jan2016.eng header.b=MOzA8wnx; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=akamai.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728652AbfH0BkP (ORCPT + 99 others); Mon, 26 Aug 2019 21:40:15 -0400 Received: from mx0a-00190b01.pphosted.com ([67.231.149.131]:28758 "EHLO mx0a-00190b01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728345AbfH0BkO (ORCPT ); Mon, 26 Aug 2019 21:40:14 -0400 Received: from pps.filterd (m0122332.ppops.net [127.0.0.1]) by mx0a-00190b01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x7R1bkrg008703; Tue, 27 Aug 2019 02:39:48 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akamai.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=jan2016.eng; bh=f/mlnpASr56fTSZ5OtsufOawpNk8bRy7Xrlqlzx/OIM=; b=MOzA8wnx3heltPi94muKsTcvnyJVZXnKe+cZVyNd3WBIhy8sZjVZs5x16/rrN6+zvq3g BqyPWwL4+7H+xb8ba9EdUZbSgqtt9MCk7s3W69OgqWdrpFU4PcSsOyGk5pnhClRuQtZ3 ZWPuHcc4zunVI0GdtDh+qeJ2W6VJYyKSZ8J21RtoW/hA0G3tifq+Nca8RhCrRM/9Xfbh 1Vru4bAwluj5vLM2v1vjTp7e2HH7yUS84CDwLVcEKcb0g+ErU28faDmpEYVE9CFtYjNM IFQA06Comb7JIOa9WplJfs6suKPuCK1WUIl5d4zaLjYp2iCJIhFY/zdmJz6KVwME7ydY Jw== Received: from prod-mail-ppoint8 (prod-mail-ppoint8.akamai.com [96.6.114.122] (may be forged)) by mx0a-00190b01.pphosted.com with ESMTP id 2ujwcst98a-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2019 02:39:47 +0100 Received: from pps.filterd (prod-mail-ppoint8.akamai.com [127.0.0.1]) by prod-mail-ppoint8.akamai.com (8.16.0.27/8.16.0.27) with SMTP id x7R1VkrU011780; Mon, 26 Aug 2019 21:39:46 -0400 Received: from email.msg.corp.akamai.com ([172.27.123.31]) by prod-mail-ppoint8.akamai.com with ESMTP id 2uk0jvhdcg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 26 Aug 2019 21:39:46 -0400 Received: from USMA1EX-DAG1MB5.msg.corp.akamai.com (172.27.123.105) by usma1ex-dag3mb6.msg.corp.akamai.com (172.27.123.54) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 26 Aug 2019 21:39:44 -0400 Received: from usma1ex-cas4.msg.corp.akamai.com (172.27.123.57) by usma1ex-dag1mb5.msg.corp.akamai.com (172.27.123.105) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 26 Aug 2019 21:39:44 -0400 Received: from igorcastle.kendall.corp.akamai.com (172.29.170.135) by usma1ex-cas4.msg.corp.akamai.com (172.27.123.57) with Microsoft SMTP Server id 15.0.1473.3 via Frontend Transport; Mon, 26 Aug 2019 18:39:44 -0700 Received: by igorcastle.kendall.corp.akamai.com (Postfix, from userid 29659) id 4A68564C03; Mon, 26 Aug 2019 21:39:41 -0400 (EDT) From: Igor Lubashev To: Jiri Olsa , Arnaldo Carvalho de Melo , Mathieu Poirier CC: Igor Lubashev , Alexander Shishkin , Alexey Budankov , James Morris , "Namhyung Kim" , Peter Zijlstra , "Suzuki Poulouse" , , Linux Kernel Mailing List Subject: [PATCH 3/5] perf util: kernel profiling is disallowed only when perf_event_paranoid > 1 Date: Mon, 26 Aug 2019 21:39:14 -0400 Message-ID: <1566869956-7154-4-git-send-email-ilubashe@akamai.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1566869956-7154-1-git-send-email-ilubashe@akamai.com> References: <1566869956-7154-1-git-send-email-ilubashe@akamai.com> MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-08-26_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908270014 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:5.22.84,1.0.8 definitions=2019-08-26_08:2019-08-26,2019-08-26 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 spamscore=0 priorityscore=1501 mlxscore=0 malwarescore=0 adultscore=0 phishscore=0 mlxlogscore=999 clxscore=1015 lowpriorityscore=0 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1906280000 definitions=main-1908270015 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Perf was too restrictive about sysctl kernel.perf_event_paranoid. The kernel only disallows profiling when perf_event_paranoid > 1. Make perf do the same. Signed-off-by: Igor Lubashev --- tools/perf/util/evsel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 0b3b5af33954..bfe6ed2abcc2 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -279,7 +279,7 @@ struct evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx) static bool perf_event_can_profile_kernel(void) { - return perf_event_paranoid_check(-1); + return perf_event_paranoid_check(1); } struct evsel *perf_evsel__new_cycles(bool precise) -- 2.7.4