On Thu 25-07-19 21:16:58, Weitao Hou wrote:
> use rb_entry_safe() to make it clean
>
> Signed-off-by: Weitao Hou <houweitaoo@xxxxxxxxx>
Thanks for the patch. It looks good. You can add:
Reviewed-by: Jan Kara <jack@xxxxxxx>
Honza
> ---
> fs/ext4/extents_status.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
> index 7521de2dcf3a..08ce5ded3538 100644
> --- a/fs/ext4/extents_status.c
> +++ b/fs/ext4/extents_status.c
> @@ -228,8 +228,7 @@ static struct extent_status *__es_tree_search(struct rb_root *root,
>
> if (es && lblk > ext4_es_end(es)) {
> node = rb_next(&es->rb_node);
> - return node ? rb_entry(node, struct extent_status, rb_node) :
> - NULL;
> + return rb_entry_safe(node, struct extent_status, rb_node);
> }
>
> return NULL;
> --
> 2.18.0
>
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR
