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| author | David Carrillo-Cisneros <[email protected]> | 2016-08-17 20:55:04 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-08-18 08:35:52 +0000 |
| commit | 71e7bc2bab77e64882c031c2af943c3256c1adb0 (patch) | |
| tree | c8a876b227ae2fa3098c2a19d1870784b116bea3 /tools/perf/util/scripting-engines/trace-event-perl.c | |
| parent | perf/core: Enable mapping of the stop filters (diff) | |
| download | kernel-71e7bc2bab77e64882c031c2af943c3256c1adb0.tar.gz kernel-71e7bc2bab77e64882c031c2af943c3256c1adb0.zip | |
perf/core: Check return value of the perf_event_read() IPI
The call to smp_call_function_single in perf_event_read() may fail if
an invalid or not online CPU index is passed. Warn user if such bug is
present and return error.
Signed-off-by: David Carrillo-Cisneros <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Paul Turner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vegard Nossum <[email protected]>
Cc: Vince Weaver <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-perl.c')
0 files changed, 0 insertions, 0 deletions