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From: Yongqiang Yang <xiaoqiangnk@gmail.com>
To: Ext4 Developers List <linux-ext4@vger.kernel.org>
Cc: "Ted Ts'o" <tytso@mit.edu>, Andreas Dilger <adilger@dilger.ca>
Subject: backup of the last group'descriptor when it is the 1st group of a meta_bg
Date: Tue, 27 Mar 2012 22:47:34 +0800	[thread overview]
Message-ID: <CAGBYx2bbucN5MN0MfRXK3=x74mY3-+foGuQc2Gd4oQzJAzPVKg@mail.gmail.com> (raw)

Hi Ted, Andreas and List,

As Andreas pointed out last year, if the last group is the 1st group
in a meta bg, then its group desc has no backup.
With meta_bg resizing inode is useless,  I had a thought that we store
a backup group descriptor of the last group in the resizing inode？
What's your opinions?

Yongqiang.
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             reply	other threads:[~2012-03-27 14:47 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-27 14:47 Yongqiang Yang [this message]
2012-03-28 16:08 ` backup of the last group'descriptor when it is the 1st group of a meta_bg Andreas Dilger
2012-04-02  5:04   ` Yongqiang Yang
2012-04-02  5:46     ` Andreas Dilger
2012-04-03 18:39   ` Ted Ts'o
2012-04-03 19:28     ` Andreas Dilger
2012-04-03 21:26       ` Ted Ts'o
2012-04-03 22:07         ` backup of the last group descriptor " Andreas Dilger
2012-04-04 19:28           ` Ted Ts'o

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