epfn_ro 415 arch/x86/mm/pageattr.c unsigned long epfn_ro, spfn_ro = PFN_DOWN(__pa_symbol(__start_rodata)); epfn_ro 421 arch/x86/mm/pageattr.c epfn_ro = PFN_DOWN(__pa_symbol(__end_rodata)) - 1; epfn_ro 423 arch/x86/mm/pageattr.c if (kernel_set_to_readonly && overlaps(spfn, epfn, spfn_ro, epfn_ro))