linux-kernel - Re: [PATCH 5/5] jbd2: remove j_format

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Message-ID: <20230313111315.hw32swlzb3bfxk3y@quack3>
Date:   Mon, 13 Mar 2023 12:13:15 +0100
From:   Jan Kara <jack@...e.cz>
To:     Zhihao Cheng <chengzhihao1@...wei.com>
Cc:     tytso@....edu, adilger.kernel@...ger.ca, jack@...e.com,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        yi.zhang@...wei.com
Subject: Re: [PATCH 5/5] jbd2: remove j_format_version

On Fri 10-03-23 20:52:06, Zhihao Cheng wrote:
> From: Zhang Yi <yi.zhang@...wei.com>
> 
> journal->j_format_version is no longer used, remove it.
> 
> Signed-off-by: Zhang Yi <yi.zhang@...wei.com>
> Signed-off-by: Zhihao Cheng <chengzhihao1@...wei.com>

Looks good. Feel free to add:

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

								Honza

> ---
>  fs/jbd2/journal.c    | 9 ---------
>  include/linux/jbd2.h | 5 -----
>  2 files changed, 14 deletions(-)
> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index cd94d068b4e6..fbada835b6b7 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -1997,15 +1997,6 @@ static int load_superblock(journal_t *journal)
>  
>  	sb = journal->j_superblock;
>  
> -	switch (be32_to_cpu(sb->s_header.h_blocktype)) {
> -	case JBD2_SUPERBLOCK_V1:
> -		journal->j_format_version = 1;
> -		break;
> -	case JBD2_SUPERBLOCK_V2:
> -		journal->j_format_version = 2;
> -		break;
> -	}
> -
>  	journal->j_tail_sequence = be32_to_cpu(sb->s_sequence);
>  	journal->j_tail = be32_to_cpu(sb->s_start);
>  	journal->j_first = be32_to_cpu(sb->s_first);
> diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
> index 7095c0f17ad0..b7c79f68f7ca 100644
> --- a/include/linux/jbd2.h
> +++ b/include/linux/jbd2.h
> @@ -792,11 +792,6 @@ struct journal_s
>  	 */
>  	journal_superblock_t	*j_superblock;
>  
> -	/**
> -	 * @j_format_version: Version of the superblock format.
> -	 */
> -	int			j_format_version;
> -
>  	/**
>  	 * @j_state_lock: Protect the various scalars in the journal.
>  	 */
> -- 
> 2.31.1
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR