On Thu, Feb 03, 2000 at 10:26:15 +0100, Guido van Rooij wrote:
> A collegue fo mine had the problem that it was possible to
> vnconfig -u a vn device that was currently in use. This strikes
> me as odd.
> When looking through the da device code, I notice a similar problem.
> Suppose I have a zip fdisk mounted with a disklabel and 2
> ufs partitions on it. When I mount both partitions, the disk
> will be locked. But it will be unlocked at the first unmount.
> I guess there should be a refcounter that keeps track of
> the amount of opens and only unlock devices at the last close.
>
> Same for vn.c.
>
> Any comments?
The reference counting should be handled by PHK's disk layer (which sits
above CAM), and the da driver's close routine should only get called on
final close.
I don't know about the vn device, though.
Ken
--
Kenneth Merry
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