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