When the sched thread is parked we assume ring_mirror_list is
not accessed from here.
Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com>
Reviewed-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/scheduler/sched_main.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c
b/drivers/gpu/drm/scheduler/sched_main.c
index d4cc728..6774955 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -635,9 +635,13 @@ drm_sched_get_cleanup_job(struct drm_gpu_scheduler *sched)
struct drm_sched_job *job;
unsigned long flags;
- /* Don't destroy jobs while the timeout worker is running */
- if (sched->timeout != MAX_SCHEDULE_TIMEOUT &&
- !cancel_delayed_work(&sched->work_tdr))
+ /*
+ * Don't destroy jobs while the timeout worker is running OR thread
+ * is being parked and hence assumed to not touch ring_mirror_list
+ */
+ if ((sched->timeout != MAX_SCHEDULE_TIMEOUT &&
+ !cancel_delayed_work(&sched->work_tdr)) ||
+ __kthread_should_park(sched->thread))
return NULL;
spin_lock_irqsave(&sched->job_list_lock, flags);
--
2.7.4
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