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perf: Per-pmu-per-cpu contexts

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Allocate per-cpu contexts per pmu.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus <paulus@samba.org>
Cc: stephane eranian <eranian@googlemail.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Yanmin <yanmin_zhang@linux.intel.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra
2010-09-06 14:32:03 +02:00
committed by Ingo Molnar
parent b5ab4cd563
commit 108b02cfce
2 changed files with 113 additions and 69 deletions
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4
include/linux/perf_event.h
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@@ -570,7 +570,8 @@ struct perf_event;
struct pmu {
struct list_head entry;
int *pmu_disable_count;
int * __percpu pmu_disable_count;
struct perf_cpu_context * __percpu pmu_cpu_context;
/*
* Fully disable/enable this PMU, can be used to protect from the PMI
@@ -808,6 +809,7 @@ struct perf_event {
* Used as a container for task events and CPU events as well:
*/
struct perf_event_context {
struct pmu *pmu;
/*
* Protect the states of the events in the list,
* nr_active, and the list: