diff options
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index d7e8ea690864..ae6fa6050925 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -808,6 +808,12 @@ struct perf_event_context { struct rcu_head rcu_head; }; +/* + * Number of contexts where an event can trigger: + * task, softirq, hardirq, nmi. + */ +#define PERF_NR_CONTEXTS 4 + /** * struct perf_event_cpu_context - per cpu event context structure */ @@ -821,12 +827,8 @@ struct perf_cpu_context { struct mutex hlist_mutex; int hlist_refcount; - /* - * Recursion avoidance: - * - * task, softirq, irq, nmi context - */ - int recursion[4]; + /* Recursion avoidance in each contexts */ + int recursion[PERF_NR_CONTEXTS]; }; struct perf_output_handle { |