-static void reada_walk_down(struct btrfs_root *root,
- struct extent_buffer *node, int slot)
-{
- struct btrfs_fs_info *fs_info = root->fs_info;
- u64 bytenr;
- u64 ptr_gen;
- u32 nritems;
- int i;
- int level;
-
- level = btrfs_header_level(node);
- if (level != 1)
- return;
-
- nritems = btrfs_header_nritems(node);
- for (i = slot; i < nritems; i++) {
- bytenr = btrfs_node_blockptr(node, i);
- ptr_gen = btrfs_node_ptr_generation(node, i);
- readahead_tree_block(fs_info, bytenr, ptr_gen);
- }
-}
-