Re: [RFC Patch] virtio: export model and type in /sys

From: Cong Wang
Date: Fri Feb 04 2011 - 01:31:37 EST


ä 2011å02æ02æ 01:37, Christoph Hellwig åé:
On Mon, Jan 31, 2011 at 10:53:00AM +0800, Amerigo Wang wrote:
Our kdump script needs /sys/block/X/device/{vendor, model, type},
but virtio devices don't have {model, type}, this patch adds them.
Actually, I don't know how to fill the model field, other block devices
seem read it from SCSI. Any comments?

It does not make any sense to fill this at all in virtio. The
attributes are simply exporting the SCSI INQUIRY data, and do not make
any sense at all outside a SCSI context. In fact the type field even
contains numbers from the scsi protocol spec that just don't make sense.


Hmm, so other non-SCSI devices don't have these neither?
Do you have any suggestions to find another way to identify a disk?

Thanks.
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