K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2008-06-16T17:34:59.239900Z
K 7
svn:log
V 293
Struct cdev is always the member of the struct cdev_priv. When devfs
needed to promote cdev to cdev_priv, the si_priv pointer was followed.

Use member2struct() to calculate address of the wrapping cdev_priv.
Rename si_priv to __si_reserved.

Tested by:	pho
Reviewed by:	ed
MFC after:	2 weeks

END