__rb_is_black     107 include/linux/rbtree_augmented.h #define rb_is_black(rb)    __rb_is_black((rb)->__rb_parent_color)
__rb_is_black     159 include/linux/rbtree_augmented.h 			rebalance = __rb_is_black(pc) ? parent : NULL;
__rb_is_black     224 include/linux/rbtree_augmented.h 			rebalance = __rb_is_black(pc2) ? parent : NULL;