diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-06-15 19:00:20 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-17 19:23:52 +0200 |
| commit | 60f916dee612130c9977a8edd4abee98334202ba (patch) | |
| tree | 7de1a620cd1067fd46a06d23621afe3482b5a06e | |
| parent | 6e7d6fdcbeefa9434653b5e5da12909636ea1d52 (diff) | |
| download | linux-60f916dee612130c9977a8edd4abee98334202ba.tar.gz linux-60f916dee612130c9977a8edd4abee98334202ba.tar.bz2 linux-60f916dee612130c9977a8edd4abee98334202ba.zip | |
perf_counter: x86: Set the period in the intel overflow handler
Commit 9e350de37ac960 ("perf_counter: Accurate period data")
missed a spot, which caused all Intel-PMU samples to have a
period of 0.
This broke auto-freq sampling.
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>
| -rw-r--r-- | arch/x86/kernel/cpu/perf_counter.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index e8c68a5091df..ce1ae3f1f86c 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -1224,6 +1224,8 @@ again: if (!intel_pmu_save_and_restart(counter)) continue; + data.period = counter->hw.last_period; + if (perf_counter_overflow(counter, 1, &data)) intel_pmu_disable_counter(&counter->hw, bit); } |