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perf: Remove the perf_output_begin(.sample) argument

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Since only samples call perf_output_sample() its much saner (and more
correct) to put the sample logic in there than in the
perf_output_begin()/perf_output_end() pair.

Saves a useless argument, reduces conditionals and shrinks
struct perf_output_handle, win!

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-2crpvsx3cqu67q3zqjbnlpsc@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2011-06-27 16:47:16 +02:00 • committed by Ingo Molnar
parent a8b0ca17b8
commit a7ac67ea02
4 changed files with 23 additions and 28 deletions
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4
include/linux/perf_event.h
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@ -925,7 +925,6 @@ struct perf_output_handle {
unsigned long size;
void *addr;
int page;
int sample;
};
#ifdef CONFIG_PERF_EVENTS
@ -1117,8 +1116,7 @@ extern void perf_bp_event(struct perf_event *event, void *data);
#endif
extern int perf_output_begin(struct perf_output_handle *handle,
struct perf_event *event, unsigned int size,
int sample);
struct perf_event *event, unsigned int size);
extern void perf_output_end(struct perf_output_handle *handle);
extern void perf_output_copy(struct perf_output_handle *handle,
const void *buf, unsigned int len);