2017-04-26 Christian König <deathsimple@xxxxxxxxxxx>: > Am 26.04.2017 um 16:46 schrieb Andres Rodriguez: > > When a timeout of zero is specified, the caller is only interested in > > the fence status. > > > > In the current implementation, dma_fence_default_wait will always call > > schedule_timeout() at least once for an unsignaled fence. This adds a > > significant overhead to a fence status query. > > > > Avoid this overhead by returning early if a zero timeout is specified. > > > > v2: move early return after enable_signaling > > > > Signed-off-by: Andres Rodriguez <andresx7@xxxxxxxxx> > > Reviewed-by: Christian König <christian.koenig@xxxxxxx> pushed to drm-misc-next. Thanks all. Gustavo
