This allows it to call the function without the lock held.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/ttm/ttm_bo.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index c1104c8857b7..e12fc2c2d165 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -429,22 +429,24 @@ static int ttm_bo_individualize_resv(struct
ttm_buffer_object *bo)
static void ttm_bo_flush_all_fences(struct ttm_buffer_object *bo)
{
+ struct dma_resv *resv = &bo->base._resv;
struct dma_resv_list *fobj;
struct dma_fence *fence;
int i;
- fobj = dma_resv_get_list(&bo->base._resv);
- fence = dma_resv_get_excl(&bo->base._resv);
+ rcu_read_lock();
+ fobj = rcu_dereference(resv->fence);
+ fence = rcu_dereference(resv->fence_excl);
if (fence && !fence->ops->signaled)
dma_fence_enable_sw_signaling(fence);
for (i = 0; fobj && i < fobj->shared_count; ++i) {
- fence = rcu_dereference_protected(fobj->shared[i],
- dma_resv_held(bo->base.resv));
+ fence = rcu_dereference(fobj->shared[i]);
if (!fence->ops->signaled)
dma_fence_enable_sw_signaling(fence);
}
+ rcu_read_unlock();
}
static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo)
--
2.17.1
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