STABLE14-lih-host-hold-20050113

STABLE14-lih-host-hold-20050113

FIXES 17211

"lih_r now leaves the current lih_host held, and h_Releases those for which
it changed mind during h_Enumerate. It also closes the window that
ClearHostCallbacks_r opens.

The problem was: due to the leak on the h_Hold table, rx connections and
host and client structures stopped being garbage collected once the
fileserver went through GetSomeSpace_r. Only relevant for "busy" servers,
many would never even invoke this routine."

(cherry picked from commit e4961402747d02f51b0ea82aad7f0d4f774dbeac)