KPF_THP
u |= 1 << KPF_THP;
u |= 1 << KPF_THP;
[KPF_THP] = "t:thp",
if (!(page_flags & KPF_THP)) {
const uint64_t folio_head_flags = KPF_THP | KPF_COMPOUND_HEAD;
const uint64_t folio_tail_flags = KPF_THP | KPF_COMPOUND_TAIL;
if (!(pfn_flags & KPF_THP))