diff options
| author | Marco Elver <elver@google.com> | 2021-04-08 12:35:58 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-04-16 16:32:40 +0200 |
| commit | 2b26f0aa004995f49f7b6f4100dd0e4c39a9ed5f (patch) | |
| tree | 27077a92806b93fffb58a3eaf0fad81cbf2e42c9 /kernel/fork.c | |
| parent | perf: Apply PERF_EVENT_IOC_MODIFY_ATTRIBUTES to children (diff) | |
| download | linux-2b26f0aa004995f49f7b6f4100dd0e4c39a9ed5f.tar.xz linux-2b26f0aa004995f49f7b6f4100dd0e4c39a9ed5f.zip | |
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 <peterz@infradead.org>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/YBvj6eJR%2FDY2TsEB@hirez.programming.kicks-ass.net/
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 0acc8ed1076b..3728a645771c 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2078,7 +2078,7 @@ static __latent_entropy struct task_struct *copy_process( if (retval) goto bad_fork_cleanup_policy; - retval = perf_event_init_task(p); + retval = perf_event_init_task(p, clone_flags); if (retval) goto bad_fork_cleanup_policy; retval = audit_alloc(p); |