hammer_ino_rb_compare
int hammer_ino_rb_compare(hammer_inode_t ip1, hammer_inode_t ip2);
hammer_ino_rb_compare);
hammer_ino_rb_compare, hammer_inode_info_t);
hammer_ino_rb_compare);
RB_GENERATE(hammer_ino_rb_tree, hammer_inode, rb_node, hammer_ino_rb_compare);