thorpej
Mon Nov  6 12:28:12 PST 1995
Update of /a/cvsroot/src/sys/dev
In directory pain.lcs.mit.edu:/b/tmp/cvs-serv25151

Modified Files:
	vnd.c 
Log Message:
Bring in several changes from the ccd:
	* Be a bit better with prototypes
	* Use struct dkdevice in vnd_softc.
	* Prevent the unit from being unconfigured while open.
	* Implement a simple locking mechanism and use it for sanity's
	  sake.
Still needs more work; needs to support disklabels and the like.