Commit 60f916de authored Jun 15, 2009 by Peter Zijlstra Committed by Ingo Molnar Jun 17, 2009

perf_counter: x86: Set the period in the intel overflow handler



Commit 9e350de3 ("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>

parent 6e7d6fdc

arch/x86/kernel/cpu/perf_counter.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}