Re: [Qemu-devel] [PATCH 1/5] block: Add top level BSG support

[Nicholas A. Bellinger]

On Wed, 2010-11-24 at 17:48 +0100, Christoph Hellwig wrote:
> Nick,
> 
> can we wait a bit with this series?  With the threadlets currently
> pending for inclusion I can get my rewrite of the generic-generic
> to not abuse the qemu block layer out of the closet again, which
> should simplify a lot of the things you're touching here.
> 

Sure, no big rush on this series now that it's been updated to run
against recent v2 QEMU SCSI changes and latest megasas emulation code.
I must have missed your threadlets block rewrite series, but am
interested to see how this can simply things wrt to scsi-generic and
scsi-bsg -> accessing kernel backend devices.

But yeah, the lack of a proper bsg_rq_map_user_iov() handler in
block/bsg.c:bsg_map_hdr() still needs to be addressed in the mainline
kernel, so that SCSIDeviceInfo->alloc_req_iov() generated SCSIRequest
can function properly in patch #5.

--nab