PG_ZERO
atomic_clearbits_int(&pg->pg_flags, PG_ZERO);
atomic_clearbits_int(&pg[i].pg_flags, PG_ZERO);
flags_to_clear |= PQ_ANON|PQ_AOBJ|PQ_ENCRYPT|PG_ZERO|PG_FAKE|PG_BUSY|
if (pg->pg_flags & PG_ZERO)
if (found->pg_flags & PG_ZERO) {
if (found->pg_flags & PG_ZERO)
atomic_clearbits_int(&found->pg_flags, PG_ZERO|PQ_FREE);
atomic_clearbits_int(&pg[i].pg_flags, PG_ZERO);
atomic_clearbits_int(&pg->pg_flags, PG_ZERO);
atomic_setbits_int(&pg->pg_flags, PG_ZERO);
(((pg_flags) & ~(PQ_FREE|PG_ZERO|PG_PMAPMASK)) == 0x0)