* Wei Yang <richard.weiyang@xxxxxxxxx> [241018 22:37]:
> Currently for an empty tree, it would print:
>
> maple_tree(0x7ffcd02c6ee0) flags 1, height 0 root (nil)
> 0: (nil)
>
> This is a little misleading.
>
> Let's print (empty) for an empty tree.
>
> Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
> CC: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
> CC: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
> CC: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>
Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
> ---
> lib/maple_tree.c | 8 +++++---
> 1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/lib/maple_tree.c b/lib/maple_tree.c
> index 3619301dda2e..21e6895b7aef 100644
> --- a/lib/maple_tree.c
> +++ b/lib/maple_tree.c
> @@ -7287,10 +7287,12 @@ void mt_dump(const struct maple_tree *mt, enum mt_dump_format format)
>
> pr_info("maple_tree(%p) flags %X, height %u root %p\n",
> mt, mt->ma_flags, mt_height(mt), entry);
> - if (!xa_is_node(entry))
> - mt_dump_entry(entry, 0, 0, 0, format);
> - else if (entry)
> + if (xa_is_node(entry))
> mt_dump_node(mt, entry, 0, mt_node_max(entry), 0, format);
> + else if (entry)
> + mt_dump_entry(entry, 0, 0, 0, format);
> + else
> + pr_info("(empty)\n");
> }
> EXPORT_SYMBOL_GPL(mt_dump);
>
> --
> 2.34.1
>
