linux-ext4 - Re: [PATCH][e2fsprogs] New bitmap and inode table allocation for FLEX

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Message-ID: <20080403092858.5e3a7bb2@gara.konoha.net>
Date:	Thu, 3 Apr 2008 09:28:58 -0500
From:	"Jose R. Santos" <jrs@...ibm.com>
To:	Theodore Tso <tytso@....edu>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: [PATCH][e2fsprogs] New bitmap and inode table allocation for
 FLEX_BG

On Thu, 3 Apr 2008 09:12:40 -0400
Theodore Tso <tytso@....edu> wrote:

> On Mon, Mar 31, 2008 at 10:13:11PM -0500, Jose R. Santos wrote:
> > From: Jose R. Santos <jrs@...ibm.com>
> > 
> > New bitmap and inode table allocation for FLEX_BG
> > 
> > Change the way we allocate bitmaps and inode tables if the FLEX_BG
> > feature is used at mke2fs time.  It places calculates a new offset for
> > bitmaps and inode table base on the number of groups that the user
> > wishes to pack together using the new "-G" option.  Creating a
> > filesystem with 64 block groups in a flex group can be done by:
> 
> I was just testing out this patch, and it looks like it creates a
> filesystem with an incorrect free blocks count when creating a
> filesystem with both uninit_groups and flex_bg.  Can you look at this,
> please?
> 
> 						- Ted

I blame Undo Manager for being so slow that cause me to skip some of
the testing needed to be done.  I was incorrectly checking the feature
flag instead of checking the value of fs->super->s_log_groups_per_flex.

Fixed patch is on its way.

 -JRS
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