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Re: clearing 'flag unwritten extents'

To: Roger Willcocks <willcor@xxxxxxxxx>
Subject: Re: clearing 'flag unwritten extents'
From: Nathan Scott <nathans@xxxxxxx>
Date: Fri, 11 Nov 2005 07:34:35 +1100
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <cfac95650511101111w7e48e397w13bd8c9627e1aefd@xxxxxxxxxxxxxx>; from willcor@xxxxxxxxx on Thu, Nov 10, 2005 at 07:11:32PM +0000
References: <cfac95650511101111w7e48e397w13bd8c9627e1aefd@xxxxxxxxxxxxxx>
Sender: linux-xfs-bounce@xxxxxxxxxxx
User-agent: Mutt/1.2.5i
On Thu, Nov 10, 2005 at 07:11:32PM +0000, Roger Willcocks wrote:
> xfs_db has an option (version extflg) for setting the 'flag unwritten
> extents' bit in the superblock(s), but no way of clearing it.
> Is this deliberate?

Yes, once set unwritten extents may have been used, and there's
no going back at that point.



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