Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753511AbbLICWx (ORCPT ); Tue, 8 Dec 2015 21:22:53 -0500 Received: from mail9.hitachi.co.jp ([133.145.228.44]:50887 "EHLO mail9.hitachi.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752861AbbLICTG (ORCPT ); Tue, 8 Dec 2015 21:19:06 -0500 X-AuditID: 85900ec0-9d7c9b9000001a57-b6-56678f96ff45 Subject: [PATCH perf/core 11/22] perf: Make cgroup_sel to use refcnt for debug From: Masami Hiramatsu To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Adrian Hunter , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Ingo Molnar , Namhyung Kim , Jiri Olsa Date: Wed, 09 Dec 2015 11:11:12 +0900 Message-ID: <20151209021112.10245.81989.stgit@localhost.localdomain> In-Reply-To: <20151209021047.10245.8918.stgit@localhost.localdomain> References: <20151209021047.10245.8918.stgit@localhost.localdomain> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1572 Lines: 62 Make 'cgroup_sel' object to use refcnt interface for debug. This can find refcnt related memory leaks. Signed-off-by: Masami Hiramatsu --- tools/perf/util/cgroup.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c index 32e12ec..d925f86 100644 --- a/tools/perf/util/cgroup.c +++ b/tools/perf/util/cgroup.c @@ -4,6 +4,7 @@ #include "evsel.h" #include "cgroup.h" #include "evlist.h" +#include "refcnt.h" int nr_cgroups; @@ -103,6 +104,7 @@ static int add_cgroup(struct perf_evlist *evlist, char *str) free(cgrp); return -1; } + refcnt__init_as(cgrp, refcnt, 0, "cgroup_sel"); } /* @@ -115,21 +117,24 @@ static int add_cgroup(struct perf_evlist *evlist, char *str) goto found; n++; } - if (atomic_read(&cgrp->refcnt) == 0) + if (atomic_read(&cgrp->refcnt) == 0) { + refcnt__exit(cgrp, refcnt); free(cgrp); + } return -1; found: - atomic_inc(&cgrp->refcnt); + refcnt__get(cgrp, refcnt); counter->cgrp = cgrp; return 0; } void close_cgroup(struct cgroup_sel *cgrp) { - if (cgrp && atomic_dec_and_test(&cgrp->refcnt)) { + if (cgrp && refcnt__put(cgrp, refcnt)) { close(cgrp->fd); zfree(&cgrp->name); + refcnt__exit(cgrp, refcnt); free(cgrp); } } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/