Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752621Ab2KROfE (ORCPT ); Sun, 18 Nov 2012 09:35:04 -0500 Received: from merlin.infradead.org ([205.233.59.134]:36573 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752169Ab2KROaR (ORCPT ); Sun, 18 Nov 2012 09:30:17 -0500 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Jiri Olsa , Corey Ashford , Frederic Weisbecker , Ingo Molnar , Paul Mackerras , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 20/32] perf tools: Ensure single disable call per event in record comand Date: Sun, 18 Nov 2012 11:29:45 -0300 Message-Id: <1353248997-30763-21-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1353248997-30763-1-git-send-email-acme@infradead.org> References: <1353248997-30763-1-git-send-email-acme@infradead.org> Content-Type: text/plain; charset="utf-8" X-SRS-Rewrite: SMTP reverse-path rewritten from by canuck.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1927 Lines: 53 From: Jiri Olsa It's possible we issue the event disable ioctl multiple times until we read the final portion of the mmap buffer. Ensuring just single disable ioctl call for event, because there's no need to do that more than once. Signed-off-by: Jiri Olsa Acked-by: Namhyung Kim Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1352741644-16809-4-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-record.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 268b356..f3151d3 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -502,6 +502,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) struct perf_evlist *evsel_list = rec->evlist; const char *output_name = rec->output_name; struct perf_session *session; + bool disabled = false; rec->progname = argv[0]; @@ -735,8 +736,10 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv) * die with the process and we wait for that. Thus no need to * disable events in this case. */ - if (done && !perf_target__none(&opts->target)) + if (done && !disabled && !perf_target__none(&opts->target)) { perf_evlist__disable(evsel_list); + disabled = true; + } } if (quiet || signr == SIGUSR1) -- 1.7.9.2.358.g22243 -- 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/