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authorYan, Zheng <zheng.z.yan@intel.com>2012-06-15 14:31:33 +0800
committerIngo Molnar <mingo@kernel.org>2012-06-18 12:13:21 +0200
commit0cda4c023132aa93f2dd94811061f812e88daf4c (patch)
treea8190d6f16124450a633eb22007c80cf25a0937f /include/linux/perf_event.h
parente2d37cd213dcc0aeb3db4b37b9bd1710fe36fbf7 (diff)
perf: Introduce perf_pmu_migrate_context()
Originally from Peter Zijlstra. The helper migrates perf events from one cpu to another cpu. Signed-off-by: Zheng Yan <zheng.z.yan@intel.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1339741902-8449-5-git-send-email-zheng.z.yan@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/perf_event.h')
-rw-r--r--include/linux/perf_event.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 1ce887abcc5c..76c5c8b724a7 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -1107,6 +1107,8 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr,
struct task_struct *task,
perf_overflow_handler_t callback,
void *context);
+extern void perf_pmu_migrate_context(struct pmu *pmu,
+ int src_cpu, int dst_cpu);
extern u64 perf_event_read_value(struct perf_event *event,
u64 *enabled, u64 *running);