| Message ID | 1421836549-4539-2-git-send-email-Jammy.Zhou@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Op 21-01-15 om 11:35 schreef Jammy Zhou: > When specified timeout is zero for fence_wait_timeout, just check if the fence > is signaled or not without wait. > > Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com> > Reviewed-By: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Am 21.01.2015 um 11:35 schrieb Jammy Zhou: > When specified timeout is zero for fence_wait_timeout, just check if the fence > is signaled or not without wait. > > Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> > --- > drivers/dma-buf/fence.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/dma-buf/fence.c b/drivers/dma-buf/fence.c > index e554111..50ef8bd 100644 > --- a/drivers/dma-buf/fence.c > +++ b/drivers/dma-buf/fence.c > @@ -159,6 +159,9 @@ fence_wait_timeout(struct fence *fence, bool intr, signed long timeout) > if (WARN_ON(timeout < 0)) > return -EINVAL; > > + if (timeout == 0) > + return fence_is_signaled(fence); > + > trace_fence_wait_start(fence); > ret = fence->ops->wait(fence, intr, timeout); > trace_fence_wait_end(fence);
diff --git a/drivers/dma-buf/fence.c b/drivers/dma-buf/fence.c index e554111..50ef8bd 100644 --- a/drivers/dma-buf/fence.c +++ b/drivers/dma-buf/fence.c @@ -159,6 +159,9 @@ fence_wait_timeout(struct fence *fence, bool intr, signed long timeout) if (WARN_ON(timeout < 0)) return -EINVAL; + if (timeout == 0) + return fence_is_signaled(fence); + trace_fence_wait_start(fence); ret = fence->ops->wait(fence, intr, timeout); trace_fence_wait_end(fence);
When specified timeout is zero for fence_wait_timeout, just check if the fence is signaled or not without wait. Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com> --- drivers/dma-buf/fence.c | 3 +++ 1 file changed, 3 insertions(+)