David Schultz d8c6e674a4 Factor out the process of freeing ``directory caches'', which unionfs
directory vnodes use to refer to their constituent vnodes, into
union_dircache_free().  Also s/union_dircache/union_dircache_get/ and
tweak the structure of union_dircache_r().

MFC after:	3 days
2003-06-14 23:27:29 +00:00
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