2023-04-11 10:44:45

by Jan Kara

[permalink] [raw]
Subject: Re: [PATCH] fs: jbd2: fix an incorrect warn log

On Tue 11-04-23 01:20:38, Guoqing Cai wrote:
> In jbd2_journal_load(), when journal_reset fails, it prints an incorrect
> warn log.
>
> Fix this by changing the goto statement to return statement.
>
> Signed-off-by: Guoqing Cai <[email protected]>
> Reviewed-by: Dongliang Mu <[email protected]>

...

> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index e80c781731f8..555f09ca1d99 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -2082,8 +2082,10 @@ int jbd2_journal_load(journal_t *journal)
>
> /* Let the recovery code check whether it needs to recover any
> * data from the journal. */
> - if (jbd2_journal_recover(journal))
> - goto recovery_error;
> + if (jbd2_journal_recover(journal)) {
> + printk(KERN_WARNING "JBD2: recovery failed\n");
> + return -EIO;
> + }
>
> if (journal->j_failed_commit) {
> printk(KERN_ERR "JBD2: journal transaction %u on %s "
> @@ -2101,14 +2103,10 @@ int jbd2_journal_load(journal_t *journal)
> * reinitialise the dynamic contents of the superblock in memory
> * and reset them on disk. */
> if (journal_reset(journal))
> - goto recovery_error;
> + return -EIO;

So when you touch this code it would make more sense to actually return the
error returned by journal_reset() - that is most definitely not going to be
EIO but most likely ENOMEM.

Honza
--
Jan Kara <[email protected]>
SUSE Labs, CR