linux-kernel - Re: [PATCH 7/7] jbd2: remove unneeded check of ret in jbd2_fc_get

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Message-ID: <20240730133853.h7y6uj4e5eaxsmxt@quack3>
Date: Tue, 30 Jul 2024 15:38:53 +0200
From: Jan Kara <jack@...e.cz>
To: Kemeng Shi <shikemeng@...weicloud.com>
Cc: tytso@....edu, jack@...e.com, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/7] jbd2: remove unneeded check of ret in jbd2_fc_get_buf

On Tue 30-07-24 19:33:35, Kemeng Shi wrote:
> Simply return -EINVAL if j_fc_off is invalid to avoid repeated check of
> ret.
> 
> Signed-off-by: Kemeng Shi <shikemeng@...weicloud.com>

Looks good. Feel free to add:

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

								Honza

> ---
>  fs/jbd2/journal.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index dc18b9f7c999..6f90f7b8e9e5 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -842,12 +842,8 @@ int jbd2_fc_get_buf(journal_t *journal, struct buffer_head **bh_out)
>  		fc_off = journal->j_fc_off;
>  		blocknr = journal->j_fc_first + fc_off;
>  		journal->j_fc_off++;
> -	} else {
> -		ret = -EINVAL;
> -	}
> -
> -	if (ret)
> -		return ret;
> +	} else
> +		return -EINVAL;
>  
>  	ret = jbd2_journal_bmap(journal, blocknr, &pblock);
>  	if (ret)
> -- 
> 2.30.0
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR