Other cores don't busy wait any more and we removed the last user of checking the seqno for changes. Drop updating the number for shared fences altogether.
Signed-off-by: Christian König christian.koenig@amd.com --- drivers/dma-buf/reservation.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/drivers/dma-buf/reservation.c b/drivers/dma-buf/reservation.c index d59207ca72d2..6eaca469005f 100644 --- a/drivers/dma-buf/reservation.c +++ b/drivers/dma-buf/reservation.c @@ -206,9 +206,6 @@ void reservation_object_add_shared_fence(struct reservation_object *obj, fobj = reservation_object_get_list(obj); count = fobj->shared_count;
- preempt_disable(); - write_seqcount_begin(&obj->seq); - for (i = 0; i < count; ++i) {
old = rcu_dereference_protected(fobj->shared[i], @@ -226,9 +223,6 @@ void reservation_object_add_shared_fence(struct reservation_object *obj, RCU_INIT_POINTER(fobj->shared[i], fence); /* pointer update must be visible before we extend the shared_count */ smp_store_mb(fobj->shared_count, count); - - write_seqcount_end(&obj->seq); - preempt_enable(); dma_fence_put(old); } EXPORT_SYMBOL(reservation_object_add_shared_fence);