lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

perf: Introduce is_sampling_event()

Browse Source 
and use it when appropriate.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1290525705-6265-1-git-send-email-fbuihuu@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Franck Bui-Huu
2010-11-23 16:21:43 +01:00
committed by Ingo Molnar
parent 35d3778a8f
commit 6c7e550f13
3 changed files with 11 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kernel/cpu/perf_event.c
View File

@@ -442,7 +442,7 @@ static int x86_setup_perfctr(struct perf_event *event)
struct hw_perf_event *hwc = &event->hw;
u64 config;
if (!hwc->sample_period) {
if (!is_sampling_event(event)) {
hwc->sample_period = x86_pmu.max_period;
hwc->last_period = hwc->sample_period;
local64_set(&hwc->period_left, hwc->sample_period);