Make namei convertROtoRW'd volumes usable
Right now, if you convertROtoRW a volume on namei, the converted volume
appears to need a salvage before it is usable, and the header of the old
(now empty) RO volume is kept around. Fix this:
-- Set inUse = 0 on the converted volume, so the fileserver will be
able to attach the volume when we give it back
-- Unlink the RO header file, instead of trying to unlink the
VI_VOLINFO file twice
-- Log the actual error code (errno) in the error message for the last
unlink
Reviewed-on: http://gerrit.openafs.org/591
Tested-by: Derrick Brashear <shadow@dementia.org>
Reviewed-by: Derrick Brashear <shadow@dementia.org>