From: Carlos Maiolino Subject: Re: [PATCH] ext4: trigger the lazy inode table initialization after resize Date: Mon, 14 Jan 2013 12:42:01 -0200 Message-ID: <20130114144201.GA10537@andromeda.usersys.redhat.com> References: <20130113133706.GA30477@thunk.org> <1358084571-3042-1-git-send-email-tytso@mit.edu> <20130114130415.GB3906@andromeda.usersys.redhat.com> <20130114143317.GE12052@thunk.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Ext4 Developers List , esandeen@redhat.com To: "Theodore Ts'o" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:11408 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756170Ab3ANOyL (ORCPT ); Mon, 14 Jan 2013 09:54:11 -0500 Content-Disposition: inline In-Reply-To: <20130114143317.GE12052@thunk.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: 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. > Thanks to catch the right question :) > Cheers, > > - Ted -- Carlos