Kulikov Vasiliy segooon@gmail.com writes:

set_current_state() is called only once before the first iteration. After return from schedule_timeout() current state is TASK_RUNNING. If we are going to wait again, set_current_state() must be called.

Signed-off-by: Kulikov Vasiliy segooon@gmail.com

drivers/gpu/drm/nouveau/nouveau_fence.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)

Thanks, I've pushed this patch to the Nouveau kernel tree.

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 813d853..b7777ae 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -186,7 +186,6 @@ nouveau_fence_wait(void *sync_obj, void *sync_arg, bool lazy, bool intr) unsigned long timeout = jiffies + (3 * DRM_HZ); int ret = 0;

• __set_current_state(intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);

  while (1) { if (nouveau_fence_signalled(sync_obj, sync_arg))

@@ -197,6 +196,8 @@ nouveau_fence_wait(void *sync_obj, void *sync_arg, bool lazy, bool intr) break; }

• __set_current_state(intr ? TASK_INTERRUPTIBLE
  

• 	: TASK_UNINTERRUPTIBLE);
  

  if (lazy) schedule_timeout(1);