455 		struct nfs_page *subreq = destroy_list;  in nfs_destroy_unlinked_subrequests()  local
457 		destroy_list = (subreq->wb_this_page == old_head) ?  in nfs_destroy_unlinked_subrequests()
458 				   NULL : subreq->wb_this_page;  in nfs_destroy_unlinked_subrequests()
461 		nfs_page_set_headlock(subreq);  in nfs_destroy_unlinked_subrequests()
462 		WARN_ON_ONCE(old_head != subreq->wb_head);  in nfs_destroy_unlinked_subrequests()
465 		subreq->wb_this_page = subreq;  in nfs_destroy_unlinked_subrequests()
466 		subreq->wb_head = subreq;  in nfs_destroy_unlinked_subrequests()
468 		clear_bit(PG_REMOVE, &subreq->wb_flags);  in nfs_destroy_unlinked_subrequests()
471 		if (!kref_read(&subreq->wb_kref)) {  in nfs_destroy_unlinked_subrequests()
473 			if (test_and_clear_bit(PG_TEARDOWN, &subreq->wb_flags)) {  in nfs_destroy_unlinked_subrequests()
474 				nfs_page_clear_headlock(subreq);  in nfs_destroy_unlinked_subrequests()
475 				nfs_free_request(subreq);  in nfs_destroy_unlinked_subrequests()
477 				nfs_page_clear_headlock(subreq);  in nfs_destroy_unlinked_subrequests()
480 		nfs_page_clear_headlock(subreq);  in nfs_destroy_unlinked_subrequests()
484 		if (test_and_clear_bit(PG_INODE_REF, &subreq->wb_flags)) {  in nfs_destroy_unlinked_subrequests()
485 			nfs_release_request(subreq);  in nfs_destroy_unlinked_subrequests()
491 		nfs_unlock_and_release_request(subreq);  in nfs_destroy_unlinked_subrequests()
509 	struct nfs_page *subreq;  in nfs_join_page_group()  local
516 	for (subreq = head->wb_this_page; subreq != head;  in nfs_join_page_group()
517 			subreq = subreq->wb_this_page) {  in nfs_join_page_group()
519 		if (pgbase > subreq->wb_pgbase) {  in nfs_join_page_group()
520 			off -= pgbase - subreq->wb_pgbase;  in nfs_join_page_group()
521 			bytes += pgbase - subreq->wb_pgbase;  in nfs_join_page_group()
522 			pgbase = subreq->wb_pgbase;  in nfs_join_page_group()
524 		bytes = max(subreq->wb_pgbase + subreq->wb_bytes  in nfs_join_page_group()
535 	subreq = head;  in nfs_join_page_group()
537 		nfs_clear_request_commit(cinfo, subreq);  in nfs_join_page_group()
538 		subreq = subreq->wb_this_page;  in nfs_join_page_group()
539 	} while (subreq != head);  in nfs_join_page_group()