sz2ord
settings.hugepages[sz2ord(pmdsize, pagesize)].enabled = THP_NEVER;
settings.hugepages[sz2ord(size, pagesize)].enabled = THP_ALWAYS;
default_settings.hugepages[sz2ord(pmdsize, pagesize)].enabled = THP_INHERIT;
orders = 1UL << sz2ord(pmdsize, pagesize);
self->settings.hugepages[sz2ord(self->pmdsize, getpagesize())].enabled = THP_INHERIT;
self->settings.hugepages[sz2ord(self->pmdsize, getpagesize())].enabled = THP_INHERIT;
pmd_order = sz2ord(pmd_pagesize, pagesize);
settings.hugepages[sz2ord(size, pagesize)].enabled = THP_ALWAYS;
settings.shmem_hugepages[sz2ord(size, pagesize)].enabled = SHMEM_ALWAYS;