diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-03-09 10:51:02 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-10 12:23:39 (GMT) |
| commit | 63fb3f9b2312e131be5a0a2dddb63f2fb123db9b (patch) | |
| tree | a5829092628864ae123e8facbf2ded545e0a55c6 | |
| parent | d80c7502ff63aa0d99d8c0c5803d28bbef67a74e (diff) | |
| download | linux-63fb3f9b2312e131be5a0a2dddb63f2fb123db9b.tar.xz | |
perf, x86: Fix LBR read-out
Don't decrement the TOS twice...
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event_intel_lbr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/perf_event_intel_lbr.c b/arch/x86/kernel/cpu/perf_event_intel_lbr.c index f278136..df4c98e 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_lbr.c +++ b/arch/x86/kernel/cpu/perf_event_intel_lbr.c @@ -129,7 +129,7 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc) u64 tos = intel_pmu_lbr_tos(); int i; - for (i = 0; i < x86_pmu.lbr_nr; i++, tos--) { + for (i = 0; i < x86_pmu.lbr_nr; i++) { unsigned long lbr_idx = (tos - i) & mask; union { struct { @@ -162,7 +162,7 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc) u64 tos = intel_pmu_lbr_tos(); int i; - for (i = 0; i < x86_pmu.lbr_nr; i++, tos--) { + for (i = 0; i < x86_pmu.lbr_nr; i++) { unsigned long lbr_idx = (tos - i) & mask; u64 from, to, flags = 0; |