[PATCH] nbd: maintain compatibility with existing nbd tools

[Paul Clements]

This is a MIME-formatted message.  If you see this text it means that your
E-mail software does not support MIME-formatted messages.

--=_courier-23761-1056820994-0001-2
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit

On Wed, 25 Jun 2003, Lou Langholtz wrote:

> [ ... ] In the meantime, the nbd-client tool currently can't correctly set 
> the size of the device and either that needs to be worked around in the 
> driver (I'd done that in the original jumbo patch), or the nbd-client 
> tool needs to be updated (the patch I'd mailed out for nbd-client works 
> around the sizing issue by re-opening the nbd). To be clear, that's not 
> something any of the changes that have gone in so far broke nor address. 
> It's a consequence of how bd_set_size() is called in fs/block_dev.c 
> do_open().

And here's the (tiny) patch for nbd to maintain compatibility with the
existing nbd-client tool. Compiled and tested on a couple machines.
Please apply.

Thanks,
Paul

--=_courier-23761-1056820994-0001-2
Content-Type: text/plain; charset=us-ascii; name="nbd_2_5_compat.diff"
Content-Transfer-Encoding: base64
Content-ID: <[e-mail]>
Content-Description: nbd patch
Content-Disposition: attachment; filename="nbd_2_5_compat.diff"
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--=_courier-23761-1056820994-0001-2--