diff options
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index e4d3640..82660a6 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -757,6 +757,12 @@ struct perf_event { int nr_siblings; int group_flags; struct perf_event *group_leader; + + /* + * Protect the pmu, attributes and context of a group leader. + * Note: does not protect the pointer to the group_leader. + */ + struct mutex group_leader_mutex; struct pmu *pmu; enum perf_event_active_state state; @@ -979,6 +985,8 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu, struct task_struct *task, perf_overflow_handler_t callback); +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); |