Two cleanups: * The data_size is the new added size, not the new size after extend. Make the description more clear. * The var data_end is not used anymore after the data shift. Remove the useless assignment. Signed-off-by: Wang Sheng-Hui <shhuiw@xxxxxxxxx> --- fs/btrfs/ctree.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index eea5da7..c4f295e 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -4376,7 +4376,8 @@ void btrfs_truncate_item(struct btrfs_trans_handle *trans, } /* - * make the item pointed to by the path bigger, data_size is the new size. + * make the item pointed to by the path bigger. + * data_size is the to be extended size. */ void btrfs_extend_item(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, @@ -4432,7 +4433,6 @@ void btrfs_extend_item(struct btrfs_trans_handle *trans, data_end - data_size, btrfs_leaf_data(leaf) + data_end, old_data - data_end); - data_end = old_data; old_size = btrfs_item_size_nr(leaf, slot); item = btrfs_item_nr(leaf, slot); btrfs_set_item_size(leaf, item, old_size + data_size); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
