It's write-only variable, used only inside ufs_lookup.c (looked in
src/sys/ufs/ subtree only).  Seems like t's a debugging left-over. Is it
for anything or should it be GC'ed ?

-- 
Jaromir Dolecek <dolecek@ics.muni.cz>	http://www.ics.muni.cz/~dolecek/
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It is better never to have been born.  But who among us has such luck?
One in a million, perhaps.