| Date | Wed, 22 Apr 2020 13:27:27 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 08/23] sched,drm/scheduler: Convert to sched_set_fifo*() |
| |
Because SCHED_FIFO is a broken scheduler model (see previous patches) take away the priority field, the kernel can't possibly make an informed decision.
In this case, use fifo_low, because it only cares about being above SCHED_NORMAL. Effectively no change in behaviour.
Cc: alexander.deucher@amd.com Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Ingo Molnar <mingo@kernel.org> --- drivers/gpu/drm/scheduler/sched_main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -760,11 +760,10 @@ static bool drm_sched_blocked(struct drm */ static int drm_sched_main(void *param) { - struct sched_param sparam = {.sched_priority = 1}; struct drm_gpu_scheduler *sched = (struct drm_gpu_scheduler *)param; int r; - sched_setscheduler(current, SCHED_FIFO, &sparam); + sched_set_fifo_low(current); while (!kthread_should_stop()) { struct drm_sched_entity *entity = NULL;
|