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Message-ID: <20240102130046.uc4iubviimhgpmis@quack3>
Date: Tue, 2 Jan 2024 14:00:46 +0100
From: Jan Kara <jack@...e.cz>
To: Kemeng Shi <shikemeng@...weicloud.com>
Cc: tytso@....edu, adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/8] ext4: remove unused return value of __mb_check_buddy

On Sun 26-11-23 00:11:36, Kemeng Shi wrote:
> Remove unused return value of __mb_check_buddy.
> 
> Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>

Looks good. Feel free to add:

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

								Honza

> ---
>  fs/ext4/mballoc.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index 454d56126..9f9b8dd06 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -677,7 +677,7 @@ do {									\
>  	}								\
>  } while (0)
>  
> -static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
> +static void __mb_check_buddy(struct ext4_buddy *e4b, char *file,
>  				const char *function, int line)
>  {
>  	struct super_block *sb = e4b->bd_sb;
> @@ -696,7 +696,7 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
>  	void *buddy2;
>  
>  	if (e4b->bd_info->bb_check_counter++ % 10)
> -		return 0;
> +		return;
>  
>  	while (order > 1) {
>  		buddy = mb_find_buddy(e4b, order, &max);
> @@ -758,7 +758,7 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
>  
>  	grp = ext4_get_group_info(sb, e4b->bd_group);
>  	if (!grp)
> -		return NULL;
> +		return;
>  	list_for_each(cur, &grp->bb_prealloc_list) {
>  		ext4_group_t groupnr;
>  		struct ext4_prealloc_space *pa;
> @@ -768,7 +768,6 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
>  		for (i = 0; i < pa->pa_len; i++)
>  			MB_CHECK_ASSERT(mb_test_bit(k + i, buddy));
>  	}
> -	return 0;
>  }
>  #undef MB_CHECK_ASSERT
>  #define mb_check_buddy(e4b) __mb_check_buddy(e4b,	\
> -- 
> 2.30.0
> 
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR

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