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| author | Adrian Hunter <adrian.hunter@intel.com> | 2014-08-12 18:04:30 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-08-13 16:22:06 -0300 |
| commit | 46ec69add5df60310147ce3ce01a662053d82a1e (patch) | |
| tree | 3c4f17d7e58c90025a0e836a138eab753bd9b662 /tools/perf/util/cloexec.c | |
| parent | c6fa35659c5fae5f9aeb6874b177baeb2adbc02e (diff) | |
perf tools: Fix probing the kernel API with cpu-wide events
Fall back to probing with the current pid if cpu-wide probing fails.
This primarily affects the setting of comm_exec flag when the user is
un-privileged and /proc/sys/kernel/perf_event_paranoid > 0.
The change to comm_exec can be observed by using -vv with perf record
and a kernel that supports comm_exec.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@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/1407855871-15024-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cloexec.c')
0 files changed, 0 insertions, 0 deletions