p4d_page 1293 arch/s390/include/asm/pgtable.h #define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d)) p4d_page 923 arch/x86/include/asm/pgtable.h #define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d)) p4d_page 45 include/asm-generic/5level-fixup.h #define p4d_page(p4d) pgd_page(p4d) p4d_page 53 include/asm-generic/pgtable-nopud.h #define p4d_page(p4d) (pud_page((pud_t){ p4d }))