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| author | Matt Fleming <matt@console-pimps.org> | 2010-09-27 23:22:24 +0400 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-10-11 12:38:13 +0400 |
| commit | 3bf101ba42a1c89b5afbc7492e7647dae5e18735 (patch) | |
| tree | 2501d57e827b283da1a0240630fe5988d155f07b /include/linux/perf_event.h | |
| parent | 4cbe75be5c6ae86bdc7daec864eeb2dfd66f48bb (diff) | |
| download | linux-3bf101ba42a1c89b5afbc7492e7647dae5e18735.tar.xz | |
perf: Add helper function to return number of counters
The number of counters for the registered pmu is needed in a few places
so provide a helper function that returns this number.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Tested-by: Will Deacon <will.deacon@arm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 716f99b682c1..1a0219247183 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -849,6 +849,7 @@ extern int perf_max_events; extern const struct pmu *hw_perf_event_init(struct perf_event *event); +extern int perf_num_counters(void); extern void perf_event_task_sched_in(struct task_struct *task); extern void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next); extern void perf_event_task_tick(struct task_struct *task); |