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Subject[PATCH 3/5] perf util: kernel profiling is disallowed only when perf_event_paranoid > 1
Date
Perf was too restrictive about sysctl kernel.perf_event_paranoid. The
kernel only disallows profiling when perf_event_paranoid > 1. Make perf do
the same.

Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
---
tools/perf/util/evsel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0b3b5af33954..bfe6ed2abcc2 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -279,7 +279,7 @@ struct evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)

static bool perf_event_can_profile_kernel(void)
{
- return perf_event_paranoid_check(-1);
+ return perf_event_paranoid_check(1);
}

struct evsel *perf_evsel__new_cycles(bool precise)
--
2.7.4
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