From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Paul Mackerras <paulus@samba.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] perf_event: fix 'perf record'
Date: Sun, 20 Dec 2009 13:47:42 +0800 [thread overview]
Message-ID: <4B2DBA7E.8010205@cn.fujitsu.com> (raw)
'-a' parameter works abnormal in 'perf record', it conduces
'perf sched record' and 'perf kmem record' unwork.
This bug was introduced by:
commit 856e96608a72412d319e498a3a7c557571f811bd
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
tools/perf/builtin-record.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 63136d0..105ea23 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -483,7 +483,7 @@ static int __cmd_record(int argc __used, const char **argv)
atexit(atexit_header);
- if (target_pid == -1) {
+ if (target_pid == -1 && argc) {
pid = fork();
if (pid < 0) {
perror("failed to fork");
@@ -667,7 +667,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
argc = parse_options(argc, argv, options, record_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- if (!argc && target_pid == -1 && (!system_wide || profile_cpu == -1))
+ if (!argc && target_pid == -1 && !system_wide && profile_cpu == -1)
usage_with_options(record_usage, options);
symbol__init();
--
1.6.1.2
reply other threads:[~2009-12-20 5:49 UTC|newest]
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