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Date: Fri, 11 Feb 2022 09:46:03 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Arnd Bergmann <arnd@...nel.org> Cc: Stafford Horne <shorne@...il.com>, Michal Simek <michal.simek@...inx.com>, Linux-Arch <linux-arch@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, Christoph Hellwig <hch@...radead.org>, "Eric W . Biederman" <ebiederm@...ssion.com>, Al Viro <viro@...iv.linux.org.uk>, Arnd Bergmann <arnd@...db.de>, Geert Uytterhoeven <geert@...ux-m68k.org>, "Peter Zijlstra (Intel)" <peterz@...radead.org>, Catalin Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com> Subject: Re: [PATCH] microblaze: remove CONFIG_SET_FS On Fri, Feb 11, 2022 at 9:00 AM Arnd Bergmann <arnd@...nel.org> wrote: > > I have now uploaded a cleanup series to > https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=set_fs > > This uses the same access_ok() function across almost all > architectures, with the exception of those that need something else, > and I then I went further and killed off set_fs for everything other > than ia64. Thanks, looks good to me. Can you say why you didn't convert ia64? I don't see any set_fs() use there, except for the unaligned handler, which looks trivial to remove. It looks like the only reason for it is kernel-mode unaligned exceptions, which we should just turn fatal, I suspect (they already get logged). And ia64 people could make the unaligned handling do the kernel mode case in emulate_load/store_int() - it doesn't look *that* painful. But maybe you noticed something else? It would be really good to just be able to say that set_fs() no longer exists at all. Linus
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