Re: [patch 4/6] ps3: Disk Storage Driver

[Christoph Hellwig]

On Mon, Jun 18, 2007 at 11:07:31PM -0700, David Miller wrote:
> The main disk I/O block read and write is done using descriptors
> sent to the disk server.  SCSI pass-through is provided (optionally)
> so that disk analysis tools can do things like MODE_SENSE on the
> disk.

SG_IO can easily be implemented for block devices.  See cciss in
current mainline for an example.
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