273 nfs_page_group_init(struct nfs_page *req, struct nfs_page *prev)  in nfs_page_group_init()  argument
276 	WARN_ON_ONCE(prev == req);  in nfs_page_group_init()
278 	if (!prev) {  in nfs_page_group_init()
284 		WARN_ON_ONCE(prev->wb_this_page != prev->wb_head);  in nfs_page_group_init()
285 		WARN_ON_ONCE(!test_bit(PG_HEADLOCK, &prev->wb_head->wb_flags));  in nfs_page_group_init()
286 		req->wb_head = prev->wb_head;  in nfs_page_group_init()
287 		req->wb_this_page = prev->wb_this_page;  in nfs_page_group_init()
288 		prev->wb_this_page = req;  in nfs_page_group_init()
297 		if (test_bit(PG_INODE_REF, &prev->wb_head->wb_flags)) {  in nfs_page_group_init()
495 			   struct nfs_page *prev, struct nfs_page *req)  in nfs_generic_pg_test()  argument
931 static bool nfs_can_coalesce_requests(struct nfs_page *prev,  in nfs_can_coalesce_requests()  argument
938 	if (prev) {  in nfs_can_coalesce_requests()
939 		if (!nfs_match_open_context(req->wb_context, prev->wb_context))  in nfs_can_coalesce_requests()
946 					    prev->wb_lock_context))  in nfs_can_coalesce_requests()
948 		if (req_offset(req) != req_offset(prev) + prev->wb_bytes)  in nfs_can_coalesce_requests()
950 		if (req->wb_page == prev->wb_page) {  in nfs_can_coalesce_requests()
951 			if (req->wb_pgbase != prev->wb_pgbase + prev->wb_bytes)  in nfs_can_coalesce_requests()
955 			    prev->wb_pgbase + prev->wb_bytes != PAGE_CACHE_SIZE)  in nfs_can_coalesce_requests()
959 	size = pgio->pg_ops->pg_test(pgio, prev, req);  in nfs_can_coalesce_requests()
979 	struct nfs_page *prev = NULL;  in nfs_pageio_do_add_request()  local
982 		prev = nfs_list_entry(mirror->pg_list.prev);  in nfs_pageio_do_add_request()
988 	if (!nfs_can_coalesce_requests(prev, req, desc))  in nfs_pageio_do_add_request()
1273 	struct nfs_page *prev;  in nfs_pageio_cond_complete()  local
1279 			prev = nfs_list_entry(mirror->pg_list.prev);  in nfs_pageio_cond_complete()
1280 			if (index != prev->wb_index + 1)  in nfs_pageio_cond_complete()