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Re: XFS status update for January 2011

To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Subject: Re: XFS status update for January 2011
From: Tao Ma <tm@xxxxxx>
Date: Mon, 14 Feb 2011 10:17:26 +0800
Cc: xfs@xxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
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Hi Christoph,
On 02/14/2011 02:42 AM, Christoph Hellwig wrote:
On the 4th of January we saw the release of Linux 2.6.37, which contains a
large XFS update:

     67 files changed, 1424 insertions(+), 1524 deletions(-)

User visible changes are the new XFS_IOC_ZERO_RANGE ioctl which allows
to convert already allocated space into unwritten extents that return
zeros on a read,
would you mind describing some scenario that this ioctl can be used. I am
just wondering whether ocfs2 can implement it as well.


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