Re: [PATCH 2/3] block: fail SCSI passthrough ioctls on partition devices

[Linus Torvalds]

On Thu, Jan 5, 2012 at 5:18 AM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
>
> Hence, changing scsi_verify_blk_ioctl to return ENOIOCTLCMD is not
> really possible.

What?

"We have a bug in the block IO layer, so we cannot possible fix
another problem?"

Whjat the f*ck is the logic there?

Just fix the *obvious* breakage in BLKROSET. It's clearly what the
code *intends* to do, it just didn't check for ENOIOCTLCMD.

In fact, fixing that BLKROSET case would make it much more obvious
*why* it has those error tests at all. And we really should try to
just remove the crazy EINVAL case, because it really is wrong - and
then fix any broken drivers that exposes.

It's a DISEASE how you seem to think that "we have ugly mistakes in
the kernel, SO LET'S ADD ANOTHER ONE".

That's not how we do things. We *fix* things, instead of making things
even *worse*.

Stop this insanity from spreading, instead of making it spread more!

                           Linus
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