Re: [PATCH 10/14] uaccess: remove most CONFIG_SET_FS users

[PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
[PATCH 01/14] uaccess: fix integer overflow on access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 01/14] uaccess: fix integer overflow on access_ok() · Christoph Hellwig <hch@infradead.org> · 2022-02-14
[PATCH 02/14] sparc64: add __{get,put}_kernel_nocheck() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
[PATCH 03/14] nds32: fix access_ok() checks in get/put_user · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 03/14] nds32: fix access_ok() checks in get/put_user · Christoph Hellwig <hch@infradead.org> · 2022-02-14
RE: [PATCH 03/14] nds32: fix access_ok() checks in get/put_user · David Laight <hidden> · 2022-02-14
Re: [PATCH 03/14] nds32: fix access_ok() checks in get/put_user · Arnd Bergmann <arnd@kernel.org> · 2022-02-15
Re: [PATCH 03/14] nds32: fix access_ok() checks in get/put_user · Greg KH <gregkh@linuxfoundation.org> · 2022-02-15
[PATCH 04/14] x86: use more conventional access_ok() definition · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Christoph Hellwig <hch@infradead.org> · 2022-02-14
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Christoph Hellwig <hch@lst.de> · 2022-02-14
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Linus Torvalds <torvalds@linux-foundation.org> · 2022-02-14
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-14
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-15
Re: [PATCH 04/14] x86: use more conventional access_ok() definition · Linus Torvalds <torvalds@linux-foundation.org> · 2022-02-14
RE: [PATCH 04/14] x86: use more conventional access_ok() definition · David Laight <hidden> · 2022-02-14
[PATCH 05/14] uaccess: add generic __{get,put}_kernel_nofault · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 05/14] uaccess: add generic __{get,put}_kernel_nofault · Christoph Hellwig <hch@infradead.org> · 2022-02-14
Re: [PATCH 05/14] uaccess: add generic __{get,put}_kernel_nofault · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-15
Re: [PATCH 05/14] uaccess: add generic __{get,put}_kernel_nofault · Arnd Bergmann <arnd@kernel.org> · 2022-02-15
[PATCH 07/14] uaccess: generalize access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 07/14] uaccess: generalize access_ok() · Christoph Hellwig <hch@infradead.org> · 2022-02-14
Re: [PATCH 07/14] uaccess: generalize access_ok() · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-14
Re: [PATCH 07/14] uaccess: generalize access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 07/14] uaccess: generalize access_ok() · Mark Rutland <mark.rutland@arm.com> · 2022-02-15
[PATCH 06/14] mips: use simpler access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
[PATCH 08/14] arm64: simplify access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 08/14] arm64: simplify access_ok() · Robin Murphy <robin.murphy@arm.com> · 2022-02-14
Re: [PATCH 08/14] arm64: simplify access_ok() · Ard Biesheuvel <ardb@kernel.org> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Ard Biesheuvel <ardb@kernel.org> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Mark Rutland <mark.rutland@arm.com> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Mark Rutland <mark.rutland@arm.com> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Christophe Leroy <hidden> · 2022-02-16
RE: [PATCH 08/14] arm64: simplify access_ok() · David Laight <hidden> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Mark Rutland <mark.rutland@arm.com> · 2022-02-15
Re: [PATCH 08/14] arm64: simplify access_ok() · Mark Rutland <mark.rutland@arm.com> · 2022-02-15
[PATCH 09/14] m68k: drop custom __access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 09/14] m68k: drop custom __access_ok() · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-15
Re: [PATCH 09/14] m68k: drop custom __access_ok() · Christoph Hellwig <hch@lst.de> · 2022-02-15
Re: [PATCH 09/14] m68k: drop custom __access_ok() · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-15
Re: [PATCH 09/14] m68k: drop custom __access_ok() · Arnd Bergmann <arnd@kernel.org> · 2022-02-15
RE: [PATCH 09/14] m68k: drop custom __access_ok() · David Laight <hidden> · 2022-02-15
[PATCH 10/14] uaccess: remove most CONFIG_SET_FS users · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 10/14] uaccess: remove most CONFIG_SET_FS users · Christoph Hellwig <hch@infradead.org> · 2022-02-14
Re: [PATCH 10/14] uaccess: remove most CONFIG_SET_FS users · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
[PATCH 11/14] sparc64: remove CONFIG_SET_FS support · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 11/14] sparc64: remove CONFIG_SET_FS support · Christoph Hellwig <hch@infradead.org> · 2022-02-14
Re: [PATCH 11/14] sparc64: remove CONFIG_SET_FS support · Arnd Bergmann <arnd@kernel.org> · 2022-02-16
Re: [PATCH 11/14] sparc64: remove CONFIG_SET_FS support · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-15
Re: [PATCH 11/14] sparc64: remove CONFIG_SET_FS support · Arnd Bergmann <arnd@kernel.org> · 2022-02-16
[PATCH 12/14] sh: remove CONFIG_SET_FS support · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
[PATCH 13/14] ia64: remove CONFIG_SET_FS support · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
[PATCH 14/14] uaccess: drop set_fs leftovers · Arnd Bergmann <arnd@kernel.org> · 2022-02-14
Re: [PATCH 14/14] uaccess: drop set_fs leftovers · Al Viro <viro@zeniv.linux.org.uk> · 2022-02-15
Re: [PATCH 14/14] uaccess: drop set_fs leftovers · Helge Deller <deller@gmx.de> · 2022-02-15
Re: [PATCH 14/14] uaccess: drop set_fs leftovers · Arnd Bergmann <arnd@kernel.org> · 2022-02-15
Re: [PATCH 00/14] clean up asm/uaccess.h, kill set_fs for good · Linus Torvalds <torvalds@linux-foundation.org> · 2022-02-14

From: Christoph Hellwig <hch@infradead.org>
Date: 2022-02-14 17:06:15
Also in: linux-api, linux-arch, linux-arm-kernel, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux

On Mon, Feb 14, 2022 at 05:34:48PM +0100, Arnd Bergmann wrote:

From: Arnd Bergmann <arnd@arndb.de>

On almost all architectures, there are no remaining callers
of set_fs(), so CONFIG_SET_FS can be disabled, along with
removing the thread_info field and any references to it.

This turns access_ok() into a cheaper check against TASK_SIZE_MAX.

Wouldn't it make more sense to just merge this into the last patch?

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