linux-ext4 - Re: [PATCH 3/4] jbd2: make shure that we do not miss aborted state

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Message-ID: <20130521162114.GF11616@quack.suse.cz>
Date:	Tue, 21 May 2013 18:21:14 +0200
From:	Jan Kara <jack@...e.cz>
To:	Dmitry Monakhov <dmonakhov@...nvz.org>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH 3/4] jbd2: make shure that we do not miss aborted state

On Thu 16-05-13 16:28:09, Dmitry Monakhov wrote:
> 
> Signed-off-by: Dmitry Monakhov <dmonakhov@...nvz.org>
  Can you elaborate a bit more on how the aborted state could be missed so
that it would cause any problems?

								Honza
> ---
>  fs/jbd2/journal.c |    3 +--
>  1 files changed, 1 insertions(+), 2 deletions(-)
> 
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index 886ec2f..57b9120 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -700,12 +700,11 @@ int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
>  				!tid_gt(tid, journal->j_commit_sequence));
>  		read_lock(&journal->j_state_lock);
>  	}
> -	read_unlock(&journal->j_state_lock);
> -
>  	if (unlikely(is_journal_aborted(journal))) {
>  		printk(KERN_EMERG "journal commit I/O error\n");
>  		err = -EIO;
>  	}
> +	read_unlock(&journal->j_state_lock);
>  	return err;
>  }
>  
> -- 
> 1.7.1
> 
> --
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-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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