From 3bf101ba42a1c89b5afbc7492e7647dae5e18735 Mon Sep 17 00:00:00 2001 From: Matt Fleming Date: Mon, 27 Sep 2010 20:22:24 +0100 Subject: 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 Tested-by: Will Deacon Acked-by: Paul Mundt Acked-by: Peter Zijlstra Signed-off-by: Robert Richter --- include/linux/perf_event.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/perf_event.h') 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); -- cgit v1.2.1