linux-kernel - Re: XFS status update for January 2011

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Message-ID: <4D5890B6.2090105@tao.ma>
Date:	Mon, 14 Feb 2011 10:17:26 +0800
From:	Tao Ma <tm@....ma>
To:	Christoph Hellwig <hch@...radead.org>
CC:	xfs@....sgi.com, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: XFS status update for January 2011

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.

Regards,
Tao
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