CVS commit: src/sys/miscfs/kernfs

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Tue Feb  4 04:19:24 UTC 2020

Modified Files:
        src/sys/miscfs/kernfs: kernfs.h kernfs_vfsops.c kernfs_vnops.c

Log Message:
Use specfs vnops for specnodes in kernfs.

While here, don't filter out rootdev and rrootdev merely because
they're not cached.

Fixes the elusive /kern/rootdev and /kern/rrootdev nodes, which only
appeared sometimes when they felt like it, and fixes operations on
/kern/rootdev and /kern/rrootdev always returning EOPNOTSUPP.

We didn't seem to have a single PR for these issues but the following
PRs are all relevant:

PR bin/13564
PR kern/38265
PR kern/38778
PR kern/45974

XXX pullup-9, pullup-8, pullup-7, pullup-6, pullup-5, pullup-4, pullup-3, pullup-2, pullup-1.4T...


To generate a diff of this commit:
cvs rdiff -u -r1.42 -r1.43 src/sys/miscfs/kernfs/kernfs.h
cvs rdiff -u -r1.97 -r1.98 src/sys/miscfs/kernfs/kernfs_vfsops.c
cvs rdiff -u -r1.162 -r1.163 src/sys/miscfs/kernfs/kernfs_vnops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.