diff options
| author | Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com> | 2021-08-02 18:59:57 +0800 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-08-05 12:08:15 +0200 |
| commit | 649839d7cf978f08377ba6486c46683d09a3e05d (patch) | |
| tree | ff25e707e89e7905e6392380c5c3c5e20a744e37 /tools/perf/scripts/python/libxed.py | |
| parent | d19c81378829e5d774c951219c5a973965b9202c (diff) | |
drm: add lockdep assert to drm_is_current_master_locked
In drm_is_current_master_locked, accessing drm_file.master should be
protected by either drm_file.master_lookup_lock or
drm_device.master_mutex. This was previously awkward to assert with
lockdep.
Following patch ("locking/lockdep: Provide lockdep_assert{,_once}()
helpers"), this assertion is now convenient. So we add in the
assertion and explain this lock design in the kerneldoc.
Signed-off-by: Desmond Cheong Zhi Xi <desmondcheongzx@gmail.com>
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Waiman Long <longman@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210802105957.77692-3-desmondcheongzx@gmail.com
Diffstat (limited to 'tools/perf/scripts/python/libxed.py')
0 files changed, 0 insertions, 0 deletions