On 2017年08月21日 20:58, Christian König wrote:
From: Christian König <christian.koe...@amd.com>
When a process is killed we shouldn't submit all waiting jobs, but instead
clean up as fast as possible.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 23 +++++++++++++++++++----
1 file changed, 19 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 38cea6f..97c94f9 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -205,17 +205,32 @@ void amd_sched_entity_fini(struct amd_gpu_scheduler
*sched,
struct amd_sched_entity *entity)
{
struct amd_sched_rq *rq = entity->rq;
+ int r;
if (!amd_sched_entity_is_initialized(sched, entity))
return;
-
/**
* The client will not queue more IBs during this fini, consume existing
- * queued IBs
+ * queued IBs or discard them on SIGKILL
*/
- wait_event(sched->job_scheduled, amd_sched_entity_is_idle(entity));
-
+ if ((current->flags & PF_SIGNALED) && current->exit_code == SIGKILL)
+ r = -ERESTARTSYS;
+ else
+ r = wait_event_killable(sched->job_scheduled,
+ amd_sched_entity_is_idle(entity));
amd_sched_rq_remove_entity(rq, entity);
+ if (r) {
+ struct amd_sched_job *job;
+
+ /* Park the kernel for a moment to make sure it isn't processing
+ * our enity.
+ */
+ kthread_park(sched->thread);
+ kthread_unpark(sched->thread);
When entity has been removed, how does sched process entity? seems not
need here.
otherwise looks good to me.
Regards,
David Zhou
+ while (kfifo_out(&entity->job_queue, &job, sizeof(job)))
+ sched->ops->free_job(job);
+
+ }
kfifo_free(&entity->job_queue);
}
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