to_ib_umem_dmabuf
return ib_umem_dmabuf_release(to_ib_umem_dmabuf(umem));
umem_dmabuf = to_ib_umem_dmabuf(iwmr->region);
struct ib_umem_dmabuf *umem_dmabuf = to_ib_umem_dmabuf(mr->umem);
!to_ib_umem_dmabuf(mr->umem)->pinned;
dma_resv_lock(to_ib_umem_dmabuf(mr->umem)->attach->dmabuf->resv,
to_ib_umem_dmabuf(mr->umem)->private = NULL;
to_ib_umem_dmabuf(mr->umem)->attach->dmabuf->resv);
!to_ib_umem_dmabuf(mr->umem)->pinned;
dma_resv_lock(to_ib_umem_dmabuf(mr->umem)->attach->dmabuf->resv,
to_ib_umem_dmabuf(mr->umem)->private = NULL;
to_ib_umem_dmabuf(mr->umem)->attach->dmabuf->resv);
struct ib_umem_dmabuf *umem_dmabuf = to_ib_umem_dmabuf(mr->umem);