234 	struct ib_umem *umem;  in qib_reg_user_mr()  local
244 	umem = ib_umem_get(pd->uobject->context, start, length,  in qib_reg_user_mr()
246 	if (IS_ERR(umem))  in qib_reg_user_mr()
247 		return (void *) umem;  in qib_reg_user_mr()
249 	n = umem->nmap;  in qib_reg_user_mr()
254 		ib_umem_release(umem);  in qib_reg_user_mr()
261 	mr->mr.offset = umem->offset;  in qib_reg_user_mr()
263 	mr->umem = umem;  in qib_reg_user_mr()
265 	if (is_power_of_2(umem->page_size))  in qib_reg_user_mr()
266 		mr->mr.page_shift = ilog2(umem->page_size);  in qib_reg_user_mr()
269 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {  in qib_reg_user_mr()
278 			mr->mr.map[m]->segs[n].length = umem->page_size;  in qib_reg_user_mr()
317 	if (mr->umem)  in qib_dereg_mr()
318 		ib_umem_release(mr->umem);  in qib_dereg_mr()