pgd_pgtable_alloc_init_mm_gfp
return pgd_pgtable_alloc_init_mm_gfp(pgtable_type, GFP_PGTABLE_KERNEL);
pte_phys = pgd_pgtable_alloc_init_mm_gfp(TABLE_PTE, gfp);
pmd_phys = pgd_pgtable_alloc_init_mm_gfp(TABLE_PMD, gfp);