tree 373565392487223665cc5c73b16a8742e7887a7c
parent b5cc6c0387b2f8d269c1df1e68c97c958dd22fed
author Daniel Vetter <daniel.vetter@ffwll.ch> 1356035047 +0100
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1358456871 +0100

drm/i915: wake up all pageflip waiters

Otherwise it seems like we can get stuck with concurrent waiters.
Right now this /shouldn't/ be a problem, since all pending pageflip
waiters are serialized by the one mode_config.mutex, so there's at
most on waiter. But better paranoid than sorry, since this is tricky
code.

v2: WARN_ON(waitqueue_active) before waiting, as suggested by Chris
Wilson.

Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>