Messages in this thread | | | Date | Fri, 29 May 2020 17:40:38 +0000 | From | Sargun Dhillon <> | Subject | Re: [PATCH v2 1/3] seccomp: Add find_notification helper |
| |
> > While the comment is good, let's actually enforce this with: > > if (WARN_ON(!mutex_is_locked(&filter->notif_lock))) > return NULL; > I don't see much use of lockdep in seccomp (well, any), but wouldn't a stronger statement be to use lockdep, and just have:
lockdep_assert_held(&filter->notify_lock);
As that checks that the lock is held by the current task. Although, that does put this check behind lockdep, which means that running in "normal" circumstances is less safe (but faster?).
| |