When the sched thread is parked we assume ring_mirror_list is
not accessed from here.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
---
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 38bbad7..80ddbdf 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -647,9 +647,13 @@ static void drm_sched_cleanup_jobs(struct drm_gpu_scheduler *sched)
{
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;
--
2.7.4
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