[dm-devel] [PATCH v4] dm: don't allow ioctls to targets that don't map to whole devices

[Jens Axboe]

On 02/04/2017 02:45 AM, Christoph Hellwig wrote:
> .. at least for unprivileged users.  Before we called into the SCSI
> ioctl code to allow excemptions for a few SCSI passthrough ioctls,
> but this is pretty unsafe and except for this call dm knows nothing
> about SCSI ioctls.
> 
> As the SCSI ioctl code is now optional, we really don't want to
> drag it in for DM, and the exception is not very useful anyway.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> Acked-by: Mike Snitzer <snitzer at redhat.com>

Added, with the acks/reviews from Johannes and Pablo added.

-- 
Jens Axboe