XFS status update for January 2011

[Tao Ma]

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