Re: [PATCH 09/14] m68k: drop custom __access_ok()
From: Christoph Hellwig <hch@lst.de>
Date: 2022-02-15 06:29:53
Also in:
linux-alpha, linux-api, linux-arch, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, lkml, sparclinux
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).