229 	struct grant *gnt_list_entry, *n;  in fill_grant_buffer()  local
233 		gnt_list_entry = kzalloc(sizeof(struct grant), GFP_NOIO);  in fill_grant_buffer()
234 		if (!gnt_list_entry)  in fill_grant_buffer()
240 				kfree(gnt_list_entry);  in fill_grant_buffer()
243 			gnt_list_entry->page = granted_page;  in fill_grant_buffer()
246 		gnt_list_entry->gref = GRANT_INVALID_REF;  in fill_grant_buffer()
247 		list_add(&gnt_list_entry->node, &info->grants);  in fill_grant_buffer()
254 	list_for_each_entry_safe(gnt_list_entry, n,  in fill_grant_buffer()
256 		list_del(&gnt_list_entry->node);  in fill_grant_buffer()
258 			__free_page(gnt_list_entry->page);  in fill_grant_buffer()
259 		kfree(gnt_list_entry);  in fill_grant_buffer()
268 	struct grant *gnt_list_entry;  in get_free_grant()  local
271 	gnt_list_entry = list_first_entry(&info->grants, struct grant,  in get_free_grant()
273 	list_del(&gnt_list_entry->node);  in get_free_grant()
275 	if (gnt_list_entry->gref != GRANT_INVALID_REF)  in get_free_grant()
278 	return gnt_list_entry;  in get_free_grant()
281 static inline void grant_foreign_access(const struct grant *gnt_list_entry,  in grant_foreign_access()  argument
284 	gnttab_page_grant_foreign_access_ref_one(gnt_list_entry->gref,  in grant_foreign_access()
286 						 gnt_list_entry->page,  in grant_foreign_access()
294 	struct grant *gnt_list_entry = get_free_grant(info);  in get_grant()  local
296 	if (gnt_list_entry->gref != GRANT_INVALID_REF)  in get_grant()
297 		return gnt_list_entry;  in get_grant()
300 	gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head);  in get_grant()
301 	BUG_ON(gnt_list_entry->gref == -ENOSPC);  in get_grant()
303 		grant_foreign_access(gnt_list_entry, info);  in get_grant()
306 		gnttab_grant_foreign_access_ref(gnt_list_entry->gref,  in get_grant()
311 	return gnt_list_entry;  in get_grant()
317 	struct grant *gnt_list_entry = get_free_grant(info);  in get_indirect_grant()  local
319 	if (gnt_list_entry->gref != GRANT_INVALID_REF)  in get_indirect_grant()
320 		return gnt_list_entry;  in get_indirect_grant()
323 	gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head);  in get_indirect_grant()
324 	BUG_ON(gnt_list_entry->gref == -ENOSPC);  in get_indirect_grant()
333 		gnt_list_entry->page = indirect_page;  in get_indirect_grant()
335 	grant_foreign_access(gnt_list_entry, info);  in get_indirect_grant()
337 	return gnt_list_entry;  in get_indirect_grant()
505 	struct grant *gnt_list_entry;  in blkif_setup_rw_req_grant()  local
519 		gnt_list_entry = get_indirect_grant(&setup->gref_head, info);  in blkif_setup_rw_req_grant()
520 		shadow->indirect_grants[n] = gnt_list_entry;  in blkif_setup_rw_req_grant()
521 		setup->segments = kmap_atomic(gnt_list_entry->page);  in blkif_setup_rw_req_grant()
522 		ring_req->u.indirect.indirect_grefs[n] = gnt_list_entry->gref;  in blkif_setup_rw_req_grant()
525 	gnt_list_entry = get_grant(&setup->gref_head, gfn, info);  in blkif_setup_rw_req_grant()
526 	ref = gnt_list_entry->gref;  in blkif_setup_rw_req_grant()
527 	shadow->grants_used[grant_idx] = gnt_list_entry;  in blkif_setup_rw_req_grant()
532 		shared_data = kmap_atomic(gnt_list_entry->page);  in blkif_setup_rw_req_grant()