Received-SPF: pass (google.com: domain of linux-ext4+bounces-626-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
Date: Tue, 2 Jan 2024 14:06:41 +0100
From: Jan Kara <jack@suse.cz>
To: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 7/8] ext4: remove unused return value of
 ext4_mb_release_group_pa
Message-ID: <20240102130641.5mzf24ydmov3itxi@quack3>
References: <20231125161143.3945726-1-shikemeng@huaweicloud.com>
 <20231125161143.3945726-8-shikemeng@huaweicloud.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20231125161143.3945726-8-shikemeng@huaweicloud.com>

On Sun 26-11-23 00:11:42, Kemeng Shi wrote:
> Remove unused return value of ext4_mb_release_group_pa.
> 
> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@suse.cz>

								Honza

> ---
>  fs/ext4/mballoc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 1ed6d1d5a..e6561a09d 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -5330,7 +5330,7 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
>  	atomic_add(free, &sbi->s_mb_discarded);
>  }
>  
> -static noinline_for_stack int
> +static noinline_for_stack void
>  ext4_mb_release_group_pa(struct ext4_buddy *e4b,
>  				struct ext4_prealloc_space *pa)
>  {
> @@ -5344,13 +5344,11 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
>  	if (unlikely(group != e4b->bd_group && pa->pa_len != 0)) {
>  		ext4_warning(sb, "bad group: expected %u, group %u, pa_start %llu",
>  			     e4b->bd_group, group, pa->pa_pstart);
> -		return 0;
> +		return;
>  	}
>  	mb_free_blocks(pa->pa_inode, e4b, bit, pa->pa_len);
>  	atomic_add(pa->pa_len, &EXT4_SB(sb)->s_mb_discarded);
>  	trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);
> -
> -	return 0;
>  }
>  
>  /*
> -- 
> 2.30.0
> 
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR