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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-25 10:48:51 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-06-09 10:34:49 +0200 |
| commit | c676329abb2b8359d9a5d734dec0c81779823fd6 (patch) | |
| tree | b6c33715176221a87100228399c2a6f5049e44ea /kernel/perf_event.c | |
| parent | 95ae3c59fa8ad616c73745e21154b5af0fb10168 (diff) | |
| download | lwn-c676329abb2b8359d9a5d734dec0c81779823fd6.tar.gz lwn-c676329abb2b8359d9a5d734dec0c81779823fd6.zip | |
sched_clock: Add local_clock() API and improve documentation
For people who otherwise get to write: cpu_clock(smp_processor_id()),
there is now: local_clock().
Also, as per suggestion from Andrew, provide some documentation on
the various clock interfaces, and minimize the unsigned long long vs
u64 mess.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jens Axboe <jaxboe@fusionio.com>
LKML-Reference: <1275052414.1645.52.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_event.c')
| -rw-r--r-- | kernel/perf_event.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 31d6afe92594..109c5ec88933 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -214,7 +214,7 @@ static void perf_unpin_context(struct perf_event_context *ctx) static inline u64 perf_clock(void) { - return cpu_clock(raw_smp_processor_id()); + return local_clock(); } /* |