72 static col_t *col_head;  variable
79 	for (col = col_head; col != NULL; col = col->col_next)  in col_find()
97 	new_col->col_next = col_head;  in col_insert()
99 	if (col_head != NULL)  in col_insert()
100 		col_head->col_prev = new_col;  in col_insert()
101 	col_head = new_col;  in col_insert()
113 	if (col_head == col)  in col_remove()
114 		col_head = col->col_next;  in col_remove()
183 	for (col = col_head; col != NULL; col = col->col_next) {  in read_stats()
243 	col = col_head;  in read_stats()
266 	col = col_head;  in print_unformatted_stats()
325 	for (col = col_head; col != NULL; col = col->col_next) {  in print_stats()