linux-kernel - Re: [PATCH 4.4 49/91] ext4: preserve the needs_recovery flag when the journal is aborted

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Date:   Fri, 10 Mar 2017 15:14:06 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Ben Hutchings <ben@...adent.org.uk>
Cc:     stable@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4.4 49/91] ext4: preserve the needs_recovery flag when
 the journal is aborted

On Fri, Mar 10, 2017 at 04:58:02PM +0000, Ben Hutchings wrote:
> > ---
> >  fs/ext4/super.c |    6 ++++--
> >  1 file changed, 4 insertions(+), 2 deletions(-)
> > 
> > --- a/fs/ext4/super.c
> > +++ b/fs/ext4/super.c
> [...]
> > @@ -802,9 +803,10 @@ static void ext4_put_super(struct super_
> >  	destroy_workqueue(sbi->rsv_conversion_wq);
> >  
> >  	if (sbi->s_journal) {
> > +		aborted = is_journal_aborted(sbi->s_journal);
> >  		err = jbd2_journal_destroy(sbi->s_journal);
> >  		sbi->s_journal = NULL;
> > -		if (err < 0)
> > +		if ((err < 0) && !aborted)
> >  			ext4_abort(sb, "Couldn't clean up the journal");
> [...]
> 
> Shouldn't the aborted flag also be set here when err < 0?

Nice catch.  That's a separate issue (the bug was there before this
commit), though I'll send a separate patch to fix this in mainline and
then cc stable, OK?

						- Ted