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perf: Simplify task_clock_event_read() 

There is no point in us having different code paths for nmi and !nmi
here, so remove the !nmi one.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2011-02-22 16:52:24 +01:00 committed by Ingo Molnar
parent 3f7cce3c18
commit 768a06e2ca
1 changed files with 3 additions and 10 deletions
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13
kernel/perf_event.c
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@ -5810,16 +5810,9 @@ static void task_clock_event_del(struct perf_event *event, int flags)
static void task_clock_event_read(struct perf_event *event)
{
u64 time;
if (!in_nmi()) {
update_context_time(event->ctx);
time = event->ctx->time;
} else {
u64 now = perf_clock();
u64 delta = now - event->ctx->timestamp;
time = event->ctx->time + delta;
}
u64 now = perf_clock();
u64 delta = now - event->ctx->timestamp;
u64 time = event->ctx->time + delta;
task_clock_event_update(event, time);
}