peter c56ef69f56 Unbreak MNT_UPDATE when running with cd as root. Detect mountroot by ... checking for "path == NULL" (like ffs) rather than MNT_ROOT. Otherwise when you try and do an update or mountd does an NFS export, the remount fails because the code tries to mount a fresh rootfs and gets an EBUSY. The same bug is in 4.x (which is where I found it). Sanity check by: mux		2002-11-02 20:16:55 +00:00
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cd9660	Unbreak MNT_UPDATE when running with cd as root. Detect mountroot by	2002-11-02 20:16:55 +00:00