NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

thorpej
Mon Jun 16 13:21:58 PDT 1997
Update of /cvsroot/src/sys/vm
In directory netbsd1:/var/slash-tmp/cvs-serv28290

Modified Files:
        vm_swap.c 
Log Message:
Remove the code that sets dumpdev, for two reasons:
- It was incorrect.  A dev_t should _never_ be compared against
  NULL, as 0 is a valid value (major 0, minor 0).
- The operator mave have _intentionally_ set dumpdev to "none"
  (i.e. NODEV), and setting it the first time a VBLK swap device
  is added would break the semantics.
setroot() deals with all dump device selection.  Dumps and swap are now
in no way related.