__pgd_alloc        20 arch/arm/mm/pgd.c #define __pgd_alloc()	kmalloc_array(PTRS_PER_PGD, sizeof(pgd_t), GFP_KERNEL)
__pgd_alloc        23 arch/arm/mm/pgd.c #define __pgd_alloc()	(pgd_t *)__get_free_pages(GFP_KERNEL, 2)