Garrett Wollman bbf3a56610 Add four more filesystem flags:
VFCF_NETWORK (this FS goes over the net)
	VFCF_READONLY (read-write mounts do not make any sense)
	VFCF_SYNTHETIC (data in this FS is not real)
	VFCF_LOOPBACK (this FS aliases something else)

cd9660 is readonly; nullfs, umapfs, and union are loopback; NFS is netowkr;
procfs, kernfs, and fdesc are synthetic.
1995-03-16 20:23:48 +00:00
..
1994-08-02 07:55:43 +00:00
1994-05-24 10:09:53 +00:00
1995-03-16 20:23:48 +00:00

If you plan on using union mounts, then you should consider replacing
"libc/gen/opendir.c" in the C library with the file "libc.opendir.c"
in this directory.  The replacement version of opendir() automatically
removes duplicate names when a union stack is encountered.  You will
then need to rebuild the C library and all commands.

@(#)README	8.1 (Berkeley) 2/15/94