Re: [Xen-devel] [PATCH] xencommons: Attempt to load blktap driver

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 31.08.12 at 10:40, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> From what you say I think we want to modprobe blktap if blktap2 didn't
> exist.
> 
> blktap2 isn't actually a xenbus backend driver (since it uses blkback to
> do the guest facing bit) so I don't think a xen-backend: alias is
> available. I can't see any other aliases defined in the code in either
> the 2.6.18-xen tree, the SLES 2.6.32.12-0.7.1 kernel (which is the
> latest I happen to have to hand) or a mainline kernel. If there is
> something else we should be trying please let me know.

There's a "devname:xen/blktap-2/control" alias in our SLE11 SP2
and newer openSUSE ones (as of 2.6.35). Whether that's fully
appropriate to be there and/or to be used as a modprobe
argument I'm not sure though.

The bad thing about the "blktap" name is that that's also the
name of the blktap1 driver in the 2.6.18 tree and its forward
ports, but I don't think there's anything we can reasonably do
about that. So I'm fine with the change you suggest from that
perspective (whether to use the module alias pointed out ).

Jan


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