On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true).
