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perf_counter: Add counter->id to the throttle event 

So as to be able to distuinguish between multiple counters.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Peter Zijlstra 2009-06-11 14:57:55 +02:00 committed by Ingo Molnar
parent a308444ceb
commit cca3f454a8
2 changed files with 4 additions and 1 deletions
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1
include/linux/perf_counter.h
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@ -286,6 +286,7 @@ enum perf_event_type {
* struct {
* struct perf_event_header header;
* u64 time;
* u64 id;
* };
*/
PERF_EVENT_THROTTLE = 5,

4
kernel/perf_counter.c
View File

@ -2950,13 +2950,15 @@ static void perf_log_throttle(struct perf_counter *counter, int enable)
struct {
struct perf_event_header header;
u64 time;
u64 id;
} throttle_event = {
.header = {
.type = PERF_EVENT_THROTTLE + 1,
.misc = 0,
.size = sizeof(throttle_event),
},
.time = sched_clock(),
.time = sched_clock(),
.id = counter->id,
};
ret = perf_output_begin(&handle, counter, sizeof(throttle_event), 1, 0);