This allows it to call the function without the lock held.
Signed-off-by: Christian König christian.koenig@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)