Introduced by 84b233ad ("workqueue: implement current_is_async()").

Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: NLukas Wunner <lukas@wunner.de>
Acked-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>