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| author | Peter Zijlstra <peterz@infradead.org> | 2018-08-29 14:13:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-09-10 10:03:02 +0200 |
| commit | 09121255c784fd36ad6237a4e239c634b0209de0 (patch) | |
| tree | dcb1916e575a3f30a5801f667de0d44d35f64104 | |
| parent | perf/x86/intel: Add support/quirk for the MISPREDICT bit on Knights Landing CPUs (diff) | |
| download | linux-09121255c784fd36ad6237a4e239c634b0209de0.tar.xz linux-09121255c784fd36ad6237a4e239c634b0209de0.zip | |
perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use
Vince noted that commit:
6cbc304f2f36 ("perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)")
'leaked' __PERF_SAMPLE_CALLCHAIN_EARLY into the UAPI namespace. And
while sys_perf_event_open() will error out if you try to use it, it is
exposed.
Clearly mark it for internal use only to avoid any confusion.
Requested-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/uapi/linux/perf_event.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index eeb787b1c53c..f35eb72739c0 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -144,7 +144,7 @@ enum perf_event_sample_format { PERF_SAMPLE_MAX = 1U << 20, /* non-ABI */ - __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, + __PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */ }; /* |