Re: [RFC PATCH 35/35] Add Xen virtual block device driver.

Christoph Hellwig
2006-03-22T16:54:51Z

On Wed, Mar 22, 2006 at 10:39:25AM -0600, Anthony Liguori wrote:
> This is another thing that has always put me off. The virtual block
> device driver has the ability to masquerade as other types of block
> devices. It actually claims to be an IDE or SCSI device allocating the
> appropriate major/minor numbers.
>
> This seems to be pretty evil and creating interesting failure conditions
> for users who load IDE or SCSI modules. I've seen it trip up a number
> of people in the past. I think we should only ever use the major number
> that was actually allocated to us.

Exactly. We vetoed crap like that in the ibm vio drivers already so
it was removed before merging those drivers.