[tip:perf/pebs] perf, x86: Fix LBR read-out
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From: tip-bot for Peter Zijlstra on 10 Mar 2010 08:30 Commit-ID: 63fb3f9b2312e131be5a0a2dddb63f2fb123db9b Gitweb: http://git.kernel.org/tip/63fb3f9b2312e131be5a0a2dddb63f2fb123db9b Author: Peter Zijlstra <a.p.zijlstra(a)chello.nl> AuthorDate: Tue, 9 Mar 2010 11:51:02 +0100 Committer: Ingo Molnar <mingo(a)elte.hu> CommitDate: Wed, 10 Mar 2010 13:23:39 +0100 perf, x86: Fix LBR read-out Don't decrement the TOS twice... Signed-off-by: Peter Zijlstra <a.p.zijlstra(a)chello.nl> Cc: Arnaldo Carvalho de Melo <acme(a)infradead.org> Cc: paulus(a)samba.org Cc: eranian(a)google.com Cc: robert.richter(a)amd.com Cc: fweisbec(a)gmail.com LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo(a)elte.hu> --- 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |