Re: [PATCH v2 07/15] xfs: mount-api - refactor xfs_fs_fill_super()

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On Tue, 2019-08-27 at 08:42 -0400, Brian Foster wrote:
> On Fri, Aug 23, 2019 at 08:59:54AM +0800, Ian Kent wrote:
> > Much of the code in xfs_fs_fill_super() will be used by the fill
> > super
> > function of the new mount-api.
> > 
> > So refactor the common code into a helper in an attempt to show
> > what's
> > actually changed.
> > 
> > Signed-off-by: Ian Kent <raven@xxxxxxxxxx>
> > ---
> >  fs/xfs/xfs_super.c |   65 ++++++++++++++++++++++++++++++++++----
> > --------------
> >  1 file changed, 42 insertions(+), 23 deletions(-)
> > 
> > diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> > index 7cdda17ee0ff..d3fc9938987d 100644
> > --- a/fs/xfs/xfs_super.c
> > +++ b/fs/xfs/xfs_super.c
> ...
> > @@ -1885,6 +1868,42 @@ xfs_fs_fill_super(
> >  	goto out_free_sb;
> >  }
> >  
> > +STATIC int
> > +xfs_fs_fill_super(
> > +	struct super_block	*sb,
> > +	void			*data,
> > +	int			silent)
> > +{
> > +	struct xfs_mount	*mp = NULL;
> > +	int			error = -ENOMEM;
> > +
> > +	/*
> > +	 * allocate mp and do all low-level struct initializations
> > before we
> > +	 * attach it to the super
> > +	 */
> > +	mp = xfs_mount_alloc(sb);
> > +	if (!mp)
> > +		goto out;
> > +	sb->s_fs_info = mp;
> > +
> > +	error = xfs_parseargs(mp, (char *)data);
> > +	if (error)
> > +		goto out_free_fsname;
> > +
> > +	error = __xfs_fs_fill_super(mp, silent);
> > +	if (error)
> > +		goto out_free_fsname;
> > +
> > +	return 0;
> > +
> > + out_free_fsname:
> > +	sb->s_fs_info = NULL;
> > +	xfs_free_fsname(mp);
> > +	kfree(mp);
> > +out:
> > +	return error;
> 
> I know this is copied from the existing function, but there's really
> no
> need for an out label here. We can just return -ENOMEM in the one
> user
> above. Aside from that nit the rest looks fine to me.

That's sensible, I'll do that.

And btw, thanks for spending the time to look at the patches.

Ian
> 
> Brian
> 
> > +}
> > +
> >  STATIC void
> >  xfs_fs_put_super(
> >  	struct super_block	*sb)
> > 




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