| Message ID | 20181004131250.2373-3-christian.koenig@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/8] dma-buf: remove shared fence staging in reservation object | expand |
diff --git a/include/linux/reservation.h b/include/linux/reservation.h index 5ddb0e143721..2f0ffca35780 100644 --- a/include/linux/reservation.h +++ b/include/linux/reservation.h @@ -214,6 +214,11 @@ reservation_object_trylock(struct reservation_object *obj) static inline void reservation_object_unlock(struct reservation_object *obj) { +#ifdef CONFIG_DEBUG_MUTEXES + /* Test shared fence slot reservation */ + if (obj->fence) + obj->fence->shared_max = obj->fence->shared_count; +#endif ww_mutex_unlock(&obj->lock); }
Set shared_max to the number of shared fences right before we release the lock. This way every attempt to add a shared fence without previously reserving a slot will cause an error. Signed-off-by: Christian König <christian.koenig@amd.com> --- include/linux/reservation.h | 5 +++++ 1 file changed, 5 insertions(+)