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| author | Adrian Hunter <adrian.hunter@intel.com> | 2014-08-12 18:04:28 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-13 15:58:08 -0300 |
| commit | a5b0153c880c2775bf5bdd78306f0a47e860ea04 (patch) | |
| tree | b47c99d8c5987e70a4ff0c6bcc103082bd51417a | |
| parent | 86998dda5d244f4b1b994dfe34a677f3b70cfdd3 (diff) | |
| download | talos-obmc-linux-a5b0153c880c2775bf5bdd78306f0a47e860ea04.tar.gz talos-obmc-linux-a5b0153c880c2775bf5bdd78306f0a47e860ea04.zip | |
perf tools: Fix CLOEXEC probe for perf_event_paranoid == 2
With /proc/sys/kernel/perf_event_paranoid set to 2, the probe of
PERF_FLAG_FD_CLOEXEC would fail. Fix by excluding kernel profiling from
the probe event.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1407855871-15024-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/cloexec.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c index 5073c01af618..000047cb3fee 100644 --- a/tools/perf/util/cloexec.c +++ b/tools/perf/util/cloexec.c @@ -11,6 +11,7 @@ static int perf_flag_probe(void) struct perf_event_attr attr = { .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CPU_CLOCK, + .exclude_kernel = 1, }; int fd; int err; |
