Gerd Hoffmann <kra...@redhat.com> writes: > On 02/25/10 11:23, Markus Armbruster wrote: >> You're supposed to use scsi-generic for that. Which rejects anything >> but /dev/sg*. > > Well, it isn't *that* easy. The SG_IO ioctl used by scsi-generic > works on tons of devices in linux, not only /dev/sg*. I've seen
Yes, the existing check in scsi-generic is pretty cheesy. My patch just makes scsi-disk consistently cheesy ;) > patches floading around which change the check bdrv_is_sg() into "try > SG_IO and see if it works", which would allow to use /dev/sda with > both scsi-disk and scsi-generic depending on what you want. Which > makes alot of sense. > > Making that change needs some extra care though to avoid existing > configurations switching from scsi-disk to scsi-generic unnoticed. Would be nice to have some day.
