From: Andreas Dilger <adilger@clusterfs.com>
To: "Jose R. Santos" <jrs@us.ibm.com>
Cc: Theodore Tso <tytso@mit.edu>, linux-ext4 <linux-ext4@vger.kernel.org>
Subject: Re: Initial results of FLEX_BG feature.
Date: Mon, 16 Jul 2007 00:34:57 -0600 [thread overview]
Message-ID: <20070716063457.GA5992@schatzie.adilger.int> (raw)
In-Reply-To: <20070712100906.2e2afb9c@gara>
On Jul 12, 2007 10:09 -0500, Jose R. Santos wrote:
> @@ -1271,6 +1271,9 @@ static int ext4_check_descriptors (struc
>
> ext4_debug ("Checking group descriptors");
>
> + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG))
> + return 1;
> +
> for (i = 0; i < sbi->s_groups_count; i++)
> {
> if (i == sbi->s_groups_count - 1)
It looks pretty straight forward to just change this code to leave
first_block at s_first_data_block, and leave last_block at ext4_blocks_count()
if FLEX_BG is set.
Even with FLEX_BG we want to keep the group metadata within the bounds of
the filesystem.
Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.
next prev parent reply other threads:[~2007-07-16 6:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-10 16:23 Initial results of FLEX_BG feature Jose R. Santos
2007-07-11 4:12 ` Andreas Dilger
2007-07-11 5:30 ` Jose R. Santos
2007-07-11 5:39 ` Eric Sandeen
2007-07-11 12:41 ` Andreas Dilger
2007-07-11 22:09 ` Theodore Tso
2007-07-11 22:14 ` Theodore Tso
2007-07-12 15:02 ` Jose R. Santos
2007-07-12 15:09 ` Jose R. Santos
2007-07-16 6:34 ` Andreas Dilger [this message]
2007-07-16 12:27 ` Jose R. Santos
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