Re: [PATCH] ext4: use rb_entry_safe() instead of open-coding it

[Jan Kara]

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