radix_tree_next_chunk
void __rcu **radix_tree_next_chunk(const struct radix_tree_root *,
return radix_tree_next_chunk(root, iter, RADIX_TREE_ITER_CONTIG);
slot || (slot = radix_tree_next_chunk(root, iter, 0)) ; \
slot || (slot = radix_tree_next_chunk(root, iter, \
EXPORT_SYMBOL(radix_tree_next_chunk);