linux-ext4 - Re: [PATCH 2/5] jbd2: Replace journal state flag by checking errseq

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Message-ID: <20231212143704.5sf3nrluy2klx7d4@quack3>
Date: Tue, 12 Dec 2023 15:37:04 +0100
From: Jan Kara <jack@...e.cz>
To: Zhihao Cheng <chengzhihao1@...wei.com>
Cc: tytso@....edu, jack@...e.com, linux-ext4@...r.kernel.org,
	yi.zhang@...wei.com
Subject: Re: [PATCH 2/5] jbd2: Replace journal state flag by checking errseq

On Fri 03-11-23 22:52:47, Zhihao Cheng wrote:
> Now JBD2 detects metadata writeback error of fs dev according to errseq.
> Replace journal state flag by checking errseq.
> 
> Signed-off-by: Zhihao Cheng <chengzhihao1@...wei.com>
> Suggested-by: Jan Kara <jack@...e.cz>

Looks good. Feel free to add:

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

								Honza

> ---
>  fs/jbd2/journal.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index a655d9a88f79..b60d19505f8a 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -1850,7 +1850,7 @@ int jbd2_journal_update_sb_log_tail(journal_t *journal, tid_t tail_tid,
>  
>  	if (is_journal_aborted(journal))
>  		return -EIO;
> -	if (test_bit(JBD2_CHECKPOINT_IO_ERROR, &journal->j_atomic_flags)) {
> +	if (jbd2_check_fs_dev_write_error(journal)) {
>  		jbd2_journal_abort(journal, -EIO);
>  		return -EIO;
>  	}
> @@ -2148,12 +2148,12 @@ int jbd2_journal_destroy(journal_t *journal)
>  
>  	/*
>  	 * OK, all checkpoint transactions have been checked, now check the
> -	 * write out io error flag and abort the journal if some buffer failed
> -	 * to write back to the original location, otherwise the filesystem
> -	 * may become inconsistent.
> +	 * writeback errseq of fs dev and abort the journal if some buffer
> +	 * failed to write back to the original location, otherwise the
> +	 * filesystem may become inconsistent.
>  	 */
>  	if (!is_journal_aborted(journal) &&
> -	    test_bit(JBD2_CHECKPOINT_IO_ERROR, &journal->j_atomic_flags))
> +	    jbd2_check_fs_dev_write_error(journal))
>  		jbd2_journal_abort(journal, -EIO);
>  
>  	if (journal->j_sb_buffer) {
> -- 
> 2.39.2
> 
-- 
Jan Kara <jack@...e.com>
SUSE Labs, CR