linux-ext4 - Re: [PATCH] ext4: trigger the lazy inode table initialization after resize

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Message-ID: <20130114144531.GA10738@andromeda.usersys.redhat.com>
Date:	Mon, 14 Jan 2013 12:45:31 -0200
From:	Carlos Maiolino <cmaiolino@...hat.com>
To:	"Theodore Ts'o" <tytso@....edu>
Cc:	Ext4 Developers List <linux-ext4@...r.kernel.org>,
	esandeen@...hat.com
Subject: Re: [PATCH] ext4: trigger the lazy inode table initialization after
 resize

On Mon, Jan 14, 2013 at 09:33:17AM -0500, Theodore Ts'o wrote:
> On Mon, Jan 14, 2013 at 11:04:15AM -0200, Carlos Maiolino wrote:
> > > @@ -388,6 +392,11 @@ group_add_out:
> > >  		if (err == 0)
> > >  			err = err2;
> > >  		mnt_drop_write_file(filp);
> > > +		if (!err && (o_group > EXT4_SB(sb)->s_groups_count) &&
> > 
> > Maybe a n00b question Ted, but can o_group here be bigger than ->s_groups_count
> > in any chance? 
> 
> o_group can never be smaller than s_groups_count (since we don't
> support online shrink).  o_group can be larger than s_groups_count if
> ext4_resize_fs() has added one or more block groups to the file system
> --- which is when we might need to kick off the lazy init thread.
> 
> Cheers,
> 
s/bigger/smaller

Thanks to catch the right question.

-- 
Carlos
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