p4d_alloc_one      51 arch/s390/include/asm/pgalloc.h static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long address)
p4d_alloc_one     190 arch/x86/include/asm/pgalloc.h static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long addr)
p4d_alloc_one      51 include/asm-generic/pgtable-nop4d.h #define p4d_alloc_one(mm, address)		NULL