SL_META_OPENED
(sl->sl_flags & SL_META_OPENED)) {
sl->sl_flags &= ~SL_META_OPENED;
sl->sl_flags &= ~SL_META_OPENED;
sl->sl_flags |= SL_META_OPENED;
sl->sl_flags |= SL_META_OPENED;
ASSERT(sl->sl_flags & SL_META_OPENED);
ASSERT(sl->sl_flags & SL_META_OPENED);