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authorWill Deacon <will.deacon@arm.com>2013-11-27 13:54:39 +0000
committerIngo Molnar <mingo@kernel.org>2013-12-17 15:21:35 +0100
commit9450d14fb959336803e5209119eb422b667b96aa (patch)
tree097f560f958e43d1d0173882c810788fa53c3567 /arch/arm/kernel/perf_event.c
parentbad7192b842c83e580747ca57104dd51fe08c223 (diff)
downloadlinux-9450d14fb959336803e5209119eb422b667b96aa.tar.gz
Revert "ARM: 7556/1: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD"
This reverts commit 3581fe0ef37ce12ac7a4f74831168352ae848edc. Fixes to the handling of PERF_EVENT_IOC_PERIOD in the core code mean we no longer have to play this horrible game. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1385560479-11014-2-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm/kernel/perf_event.c')
-rw-r--r--arch/arm/kernel/perf_event.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index bc3f2efa0d86..789d846a9184 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -99,10 +99,6 @@ int armpmu_event_set_period(struct perf_event *event)
s64 period = hwc->sample_period;
int ret = 0;
- /* The period may have been changed by PERF_EVENT_IOC_PERIOD */
- if (unlikely(period != hwc->last_period))
- left = period - (hwc->last_period - left);
-
if (unlikely(left <= -period)) {
left = period;
local64_set(&hwc->period_left, left);