9b2c0b7fb4
The previous patch reintroduced a race condition whereby a failure in one reader may allow a second reader to see out-of-order events. Introduce a mutex to serialise readers so that an event is completed in its entirety before another reader may process an event. The two readers may race against each other, but the events each retrieves are in the correct order. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1448462343-2072-2-git-send-email-chris@chris-wilson.co.uk Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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