MDB_PG_FLAGS_FAST_LEAVE
if (flags & MDB_PG_FLAGS_FAST_LEAVE)
pg->flags |= MDB_PG_FLAGS_FAST_LEAVE;
pg->flags |= MDB_PG_FLAGS_FAST_LEAVE;
p->flags |= MDB_PG_FLAGS_FAST_LEAVE;
p->flags |= MDB_PG_FLAGS_FAST_LEAVE;