Re: [PATCH 11/21] ext4: remove unnecessary e4b->bd_buddy_page check in ext4_mb_load_buddy_gfp

From: Ojaswin Mujoo
Date: Mon Feb 13 2023 - 14:48:59 EST


On Fri, Feb 10, 2023 at 03:48:15AM +0800, Kemeng Shi wrote:
> e4b->bd_buddy_page is only set if we initialize ext4_buddy successfully. So
> e4b->bd_buddy_page is always NULL in error handle branch. Just remove the
> dead check.
>
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
> ---
> fs/ext4/mballoc.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 15fc7105becc..74da24c9bf14 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -1555,8 +1555,7 @@ ext4_mb_load_buddy_gfp(struct super_block *sb, ext4_group_t group,
> put_page(page);
> if (e4b->bd_bitmap_page)
> put_page(e4b->bd_bitmap_page);
> - if (e4b->bd_buddy_page)
> - put_page(e4b->bd_buddy_page);
> +
> e4b->bd_buddy = NULL;
> e4b->bd_bitmap = NULL;
> return ret;
> --
> 2.30.0
>
Feel free to add:

Reviewed-by: Ojaswin Mujoo <ojaswin@xxxxxxxxxxxxx>