Message ID | 20231207081635.8427-2-yangyicong@huawei.com |
---|---|
State | New |
Headers |
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[2620:137:e000::3:5]) by mx.google.com with ESMTPS id e3-20020a654783000000b005c68d9545c7si795082pgs.334.2023.12.07.00.21.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Dec 2023 00:21:42 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) client-ip=2620:137:e000::3:5; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:5 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=huawei.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by groat.vger.email (Postfix) with ESMTP id 632AA8098FE6; Thu, 7 Dec 2023 00:21:32 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at groat.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231551AbjLGIUv (ORCPT <rfc822;pusanteemu@gmail.com> + 99 others); Thu, 7 Dec 2023 03:20:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231829AbjLGIUS (ORCPT <rfc822;linux-kernel@vger.kernel.org>); Thu, 7 Dec 2023 03:20:18 -0500 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D26A10DE; Thu, 7 Dec 2023 00:20:22 -0800 (PST) Received: from canpemm500009.china.huawei.com (unknown [172.30.72.55]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4Sm6X82K1wz14LrL; Thu, 7 Dec 2023 16:15:20 +0800 (CST) Received: from localhost.localdomain (10.50.165.33) by canpemm500009.china.huawei.com (7.192.105.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 7 Dec 2023 16:20:19 +0800 From: Yicong Yang <yangyicong@huawei.com> To: <peterz@infradead.org>, <mingo@redhat.com>, <acme@kernel.org>, <mark.rutland@arm.com>, <alexander.shishkin@linux.intel.com>, <jolsa@kernel.org>, <namhyung@kernel.org>, <irogers@google.com>, <adrian.hunter@intel.com>, <linux-perf-users@vger.kernel.org>, <linux-kernel@vger.kernel.org> CC: <jonathan.cameron@huawei.com>, <hejunhao3@huawei.com>, <yangyicong@hisilicon.com>, <linuxarm@huawei.com> Subject: [PATCH 1/2] perf header: Fix one memory leakage in perf_event__fprintf_event_update() Date: Thu, 7 Dec 2023 16:16:34 +0800 Message-ID: <20231207081635.8427-2-yangyicong@huawei.com> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20231207081635.8427-1-yangyicong@huawei.com> References: <20231207081635.8427-1-yangyicong@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.50.165.33] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500009.china.huawei.com (7.192.105.203) X-CFilter-Loop: Reflected X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on groat.vger.email Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (groat.vger.email [0.0.0.0]); Thu, 07 Dec 2023 00:21:32 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784610608403615640 X-GMAIL-MSGID: 1784610608403615640 |
Series |
Perf fix two memory leakage
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Commit Message
Yicong Yang
Dec. 7, 2023, 8:16 a.m. UTC
From: Yicong Yang <yangyicong@hisilicon.com> When dump the raw trace by `perf report -D` ASan reports a memory leakage in perf_event__fprintf_event_update(). It shows that we allocated a temporary cpumap for dumping the CPUs but doesn't release it and it's not used elsewhere. Fix this by free the cpumap after the dumping. Fixes: c853f9394b7b ("perf tools: Add perf_event__fprintf_event_update function") Cc: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> --- tools/perf/util/header.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
Comments
Hello, On Thu, Dec 7, 2023 at 12:20 AM Yicong Yang <yangyicong@huawei.com> wrote: > > From: Yicong Yang <yangyicong@hisilicon.com> > > When dump the raw trace by `perf report -D` ASan reports a memory > leakage in perf_event__fprintf_event_update(). It shows that we > allocated a temporary cpumap for dumping the CPUs but doesn't > release it and it's not used elsewhere. Fix this by free the > cpumap after the dumping. > > Fixes: c853f9394b7b ("perf tools: Add perf_event__fprintf_event_update function") > Cc: Jiri Olsa <jolsa@kernel.org> > Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Thanks, Namhyung > --- > tools/perf/util/header.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c > index e86b9439ffee..7190f39ccd13 100644 > --- a/tools/perf/util/header.c > +++ b/tools/perf/util/header.c > @@ -4369,9 +4369,10 @@ size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp) > ret += fprintf(fp, "... "); > > map = cpu_map__new_data(&ev->cpus.cpus); > - if (map) > + if (map) { > ret += cpu_map__fprintf(map, fp); > - else > + perf_cpu_map__put(map); > + } else > ret += fprintf(fp, "failed to get cpus\n"); > break; > default: > -- > 2.24.0 > >
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index e86b9439ffee..7190f39ccd13 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -4369,9 +4369,10 @@ size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp) ret += fprintf(fp, "... "); map = cpu_map__new_data(&ev->cpus.cpus); - if (map) + if (map) { ret += cpu_map__fprintf(map, fp); - else + perf_cpu_map__put(map); + } else ret += fprintf(fp, "failed to get cpus\n"); break; default: