diff options
| author | Marco Elver <[email protected]> | 2021-04-08 12:35:58 +0200 |
|---|---|---|
| committer | Peter Zijlstra <[email protected]> | 2021-04-16 16:32:40 +0200 |
| commit | 2b26f0aa004995f49f7b6f4100dd0e4c39a9ed5f (patch) | |
| tree | 27077a92806b93fffb58a3eaf0fad81cbf2e42c9 /include/linux | |
| parent | 47f661eca0700928012e11c57ea0328f5ccfc3b9 (diff) | |
perf: Support only inheriting events if cloned with CLONE_THREAD
Adds bit perf_event_attr::inherit_thread, to restricting inheriting
events only if the child was cloned with CLONE_THREAD.
This option supports the case where an event is supposed to be
process-wide only (including subthreads), but should not propagate
beyond the current process's shared environment.
Suggested-by: Peter Zijlstra <[email protected]>
Signed-off-by: Marco Elver <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Link: https://lore.kernel.org/lkml/YBvj6eJR%[email protected]/
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/perf_event.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 3d478abf411c..1660039199b2 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -958,7 +958,7 @@ extern void __perf_event_task_sched_in(struct task_struct *prev, struct task_struct *task); extern void __perf_event_task_sched_out(struct task_struct *prev, struct task_struct *next); -extern int perf_event_init_task(struct task_struct *child); +extern int perf_event_init_task(struct task_struct *child, u64 clone_flags); extern void perf_event_exit_task(struct task_struct *child); extern void perf_event_free_task(struct task_struct *task); extern void perf_event_delayed_put(struct task_struct *task); @@ -1449,7 +1449,8 @@ perf_event_task_sched_in(struct task_struct *prev, static inline void perf_event_task_sched_out(struct task_struct *prev, struct task_struct *next) { } -static inline int perf_event_init_task(struct task_struct *child) { return 0; } +static inline int perf_event_init_task(struct task_struct *child, + u64 clone_flags) { return 0; } static inline void perf_event_exit_task(struct task_struct *child) { } static inline void perf_event_free_task(struct task_struct *task) { } static inline void perf_event_delayed_put(struct task_struct *task) { } |