313 	struct grant *gnt_list_entry, *n;  in fill_grant_buffer()  local
317 		gnt_list_entry = kzalloc(sizeof(struct grant), GFP_NOIO);  in fill_grant_buffer()
318 		if (!gnt_list_entry)  in fill_grant_buffer()
324 				kfree(gnt_list_entry);  in fill_grant_buffer()
327 			gnt_list_entry->page = granted_page;  in fill_grant_buffer()
330 		gnt_list_entry->gref = INVALID_GRANT_REF;  in fill_grant_buffer()
331 		list_add(&gnt_list_entry->node, &rinfo->grants);  in fill_grant_buffer()
338 	list_for_each_entry_safe(gnt_list_entry, n,  in fill_grant_buffer()
340 		list_del(&gnt_list_entry->node);  in fill_grant_buffer()
342 			__free_page(gnt_list_entry->page);  in fill_grant_buffer()
343 		kfree(gnt_list_entry);  in fill_grant_buffer()
352 	struct grant *gnt_list_entry;  in get_free_grant()  local
355 	gnt_list_entry = list_first_entry(&rinfo->grants, struct grant,  in get_free_grant()
357 	list_del(&gnt_list_entry->node);  in get_free_grant()
359 	if (gnt_list_entry->gref != INVALID_GRANT_REF)  in get_free_grant()
362 	return gnt_list_entry;  in get_free_grant()
365 static inline void grant_foreign_access(const struct grant *gnt_list_entry,  in grant_foreign_access()  argument
368 	gnttab_page_grant_foreign_access_ref_one(gnt_list_entry->gref,  in grant_foreign_access()
370 						 gnt_list_entry->page,  in grant_foreign_access()
378 	struct grant *gnt_list_entry = get_free_grant(rinfo);  in get_grant()  local
381 	if (gnt_list_entry->gref != INVALID_GRANT_REF)  in get_grant()
382 		return gnt_list_entry;  in get_grant()
385 	gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head);  in get_grant()
386 	BUG_ON(gnt_list_entry->gref == -ENOSPC);  in get_grant()
388 		grant_foreign_access(gnt_list_entry, info);  in get_grant()
391 		gnttab_grant_foreign_access_ref(gnt_list_entry->gref,  in get_grant()
396 	return gnt_list_entry;  in get_grant()
402 	struct grant *gnt_list_entry = get_free_grant(rinfo);  in get_indirect_grant()  local
405 	if (gnt_list_entry->gref != INVALID_GRANT_REF)  in get_indirect_grant()
406 		return gnt_list_entry;  in get_indirect_grant()
409 	gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head);  in get_indirect_grant()
410 	BUG_ON(gnt_list_entry->gref == -ENOSPC);  in get_indirect_grant()
419 		gnt_list_entry->page = indirect_page;  in get_indirect_grant()
421 	grant_foreign_access(gnt_list_entry, info);  in get_indirect_grant()
423 	return gnt_list_entry;  in get_indirect_grant()
599 	struct grant *gnt_list_entry;  in blkif_setup_rw_req_grant()  local
629 		gnt_list_entry = get_indirect_grant(&setup->gref_head, rinfo);  in blkif_setup_rw_req_grant()
630 		shadow->indirect_grants[n] = gnt_list_entry;  in blkif_setup_rw_req_grant()
631 		setup->segments = kmap_atomic(gnt_list_entry->page);  in blkif_setup_rw_req_grant()
632 		ring_req->u.indirect.indirect_grefs[n] = gnt_list_entry->gref;  in blkif_setup_rw_req_grant()
635 	gnt_list_entry = get_grant(&setup->gref_head, gfn, rinfo);  in blkif_setup_rw_req_grant()
636 	ref = gnt_list_entry->gref;  in blkif_setup_rw_req_grant()
641 	shadow->grants_used[setup->grant_idx] = gnt_list_entry;  in blkif_setup_rw_req_grant()
646 		shared_data = kmap_atomic(gnt_list_entry->page);  in blkif_setup_rw_req_grant()
2531 		struct grant *gnt_list_entry, *tmp;  in purge_persistent_grants()  local
2541 		list_for_each_entry_safe(gnt_list_entry, tmp, &rinfo->grants,  in purge_persistent_grants()
2543 			if (gnt_list_entry->gref == INVALID_GRANT_REF ||  in purge_persistent_grants()
2544 			    !gnttab_try_end_foreign_access(gnt_list_entry->gref))  in purge_persistent_grants()
2547 			list_del(&gnt_list_entry->node);  in purge_persistent_grants()
2549 			gnt_list_entry->gref = INVALID_GRANT_REF;  in purge_persistent_grants()
2550 			list_add_tail(&gnt_list_entry->node, &grants);  in purge_persistent_grants()