lkml.org 
[lkml]   [2020]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [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?).

\
 
 \ /
  Last update: 2020-05-29 19:42    [W:0.093 / U:0.152 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site