Btrfs: clean up for insert_state()

		tree->ops->clear_bit_hook(tree->mapping->host, state, bits);

}

static void set_state_bits(struct extent_io_tree *tree,

			   struct extent_state *state, int *bits);

/*

 * insert an extent_state struct into the tree.  'bits' are set on the

 * struct before it is inserted.

			int *bits)

{

	struct rb_node *node;

	int bits_to_set = *bits & ~EXTENT_CTLBITS;

	if (end < start) {

		printk(KERN_ERR "btrfs end < start %llu %llu\n",

	}

	state->start = start;

	state->end = end;

	set_state_cb(tree, state, bits);

	if (bits_to_set & EXTENT_DIRTY)

		tree->dirty_bytes += end - start + 1;

	state->state |= bits_to_set;

	set_state_bits(tree, state, bits);

	node = tree_insert(&tree->state, end, &state->rb_node);

	if (node) {

		struct extent_state *found;