862 int posix_lock_file(struct file *filp, struct file_lock *caller,  in posix_lock_file()  argument
884 	if (caller->fl_type != F_UNLCK) {  in posix_lock_file()
889 			if (!posix_locks_conflict(caller, fl))  in posix_lock_file()
895 			if (posix_locks_deadlock(caller, fl))  in posix_lock_file()
898 			error = locks_block_on(fl, caller);  in posix_lock_file()
917 				  !locks_same_owner(caller, fl))) {  in posix_lock_file()
923 	while ((fl = *before) && locks_same_owner(caller, fl)) {  in posix_lock_file()
926 		if (caller->fl_type == fl->fl_type) {  in posix_lock_file()
927 			if (fl->fl_end < caller->fl_start - 1)  in posix_lock_file()
932 			if (fl->fl_start > caller->fl_end + 1)  in posix_lock_file()
940 			if (fl->fl_start > caller->fl_start)  in posix_lock_file()
941 				fl->fl_start = caller->fl_start;  in posix_lock_file()
943 				caller->fl_start = fl->fl_start;  in posix_lock_file()
944 			if (fl->fl_end < caller->fl_end)  in posix_lock_file()
945 				fl->fl_end = caller->fl_end;  in posix_lock_file()
947 				caller->fl_end = fl->fl_end;  in posix_lock_file()
952 			caller = fl;  in posix_lock_file()
959 			if (fl->fl_end < caller->fl_start)  in posix_lock_file()
961 			if (fl->fl_start > caller->fl_end)  in posix_lock_file()
963 			if (caller->fl_type == F_UNLCK)  in posix_lock_file()
965 			if (fl->fl_start < caller->fl_start)  in posix_lock_file()
970 			if (fl->fl_end > caller->fl_end) {  in posix_lock_file()
974 			if (fl->fl_start >= caller->fl_start) {  in posix_lock_file()
988 				fl->fl_start = caller->fl_start;  in posix_lock_file()
989 				fl->fl_end = caller->fl_end;  in posix_lock_file()
990 				fl->fl_type = caller->fl_type;  in posix_lock_file()
991 				fl->fl_u = caller->fl_u;  in posix_lock_file()
992 				caller = fl;  in posix_lock_file()
1004 		if (caller->fl_type == F_UNLCK)  in posix_lock_file()
1006 		locks_copy_lock(new_fl, caller);  in posix_lock_file()
1020 		right->fl_start = caller->fl_end + 1;  in posix_lock_file()
1024 		left->fl_end = caller->fl_start - 1;  in posix_lock_file()