85 	if (!buf->grefs)  in xen_front_pgdir_shbuf_get_dir_start()
88 	return buf->grefs[0];  in xen_front_pgdir_shbuf_get_dir_start()
141 	if (buf->grefs) {  in xen_front_pgdir_shbuf_free()
145 			if (buf->grefs[i] != GRANT_INVALID_REF)  in xen_front_pgdir_shbuf_free()
146 				gnttab_end_foreign_access(buf->grefs[i],  in xen_front_pgdir_shbuf_free()
149 	kfree(buf->grefs);  in xen_front_pgdir_shbuf_free()
214 	if (!buf->pages || !buf->backend_map_handles || !buf->grefs)  in backend_unmap()
347 		page_dir->gref_dir_next_page = buf->grefs[i + 1];  in backend_fill_page_dir()
384 			page_dir->gref_dir_next_page = buf->grefs[i + 1];  in guest_fill_page_dir()
386 		memcpy(&page_dir->gref, &buf->grefs[cur_gref],  in guest_fill_page_dir()
418 		buf->grefs[gref_idx++] = cur_ref;  in guest_grant_refs_for_buffer()
458 		buf->grefs[j++] = cur_ref;  in grant_references()
479 	buf->grefs = kcalloc(buf->num_grefs, sizeof(*buf->grefs), GFP_KERNEL);  in alloc_storage()
480 	if (!buf->grefs)  in alloc_storage()