[Gllug] DD Ext3 Move

[Richard Jones]

On Tue, Mar 07, 2006 at 03:06:49PM +0000, Daniel P. Berrange wrote:
> I've seen multiple TB sparse files on 64-bit systems. Reading several
> terrabytes of data to determine where the zeros are is crazy. Of course
> the app creating the multi-TB sparse file is pretty crazy too, but since
> the kernel knows the allocation pattern it ought not to be too difficult
> to let userspace know too, to avoid having to byte scan.

I thought it was already possible to get the file's bmap, using (IIRC)
ioctl (fd, FIBMAP, ...)?

Rich.

-- 
Richard Jones, CTO Merjis Ltd.
Merjis - web marketing and technology - http://merjis.com
Team Notepad - intranets and extranets for business - http://team-notepad.com
-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug