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* [PATCH v4 0/4] compat: remove compat_alloc_user_space callers
@ 2021-07-20 15:09 Arnd Bergmann
  2021-07-20 15:09 ` [PATCH v4 1/4] kexec: avoid compat_alloc_user_space Arnd Bergmann
                   ` (3 more replies)
  0 siblings, 4 replies; 7+ messages in thread
From: Arnd Bergmann @ 2021-07-20 15:09 UTC (permalink / raw)
  To: linux-arch
  Cc: Arnd Bergmann, Christoph Hellwig, Alexander Viro, Andrew Morton,
	Borislav Petkov, Brian Gerst, Eric Biederman, Ingo Molnar,
	H. Peter Anvin, Thomas Gleixner, Linux ARM, linux-kernel,
	Linux-MM, kexec

From: Arnd Bergmann <arnd@arndb.de>

Going through compat_alloc_user_space() to convert indirect system call
arguments tends to add complexity compared to handling the native and
compat logic in the same code.

The drivers/media portion of the longer series is already merged,
and I just resubmitted the net/core and drivers/net portions, so this
is the last main bit.

       Arnd
---

Changes in v4:

- Rebase to v5.14-rc2
- Replace the kexec patch with a version based on Eric Biederman's
  prototype

Changes in v3:

- fix whitespace as pointed out by Christoph Hellwig
- minor build fixes
- rebase to v5.13-rc1

Link: https://lore.kernel.org/lkml/20210517203343.3941777-1-arnd@kernel.org/

Changes in v2:

- address review comments from Christoph Hellwig
- split syscall removal into a separate patch
- replace __X32_COND_SYSCALL() with individual macros for x32

Link: https://lore.kernel.org/lkml/20201208150614.GA15765@infradead.org/

Arnd Bergmann (4):
  kexec: avoid compat_alloc_user_space
  mm: simplify compat_sys_move_pages
  mm: simplify compat numa syscalls
  compat: remove some compat entry points

 arch/arm64/include/asm/unistd32.h         |  10 +-
 arch/mips/kernel/syscalls/syscall_n32.tbl |  10 +-
 arch/mips/kernel/syscalls/syscall_o32.tbl |  10 +-
 arch/parisc/kernel/syscalls/syscall.tbl   |   8 +-
 arch/powerpc/kernel/syscalls/syscall.tbl  |  10 +-
 arch/s390/kernel/syscalls/syscall.tbl     |  10 +-
 arch/sparc/kernel/syscalls/syscall.tbl    |  10 +-
 arch/x86/entry/syscalls/syscall_32.tbl    |   4 +-
 arch/x86/entry/syscalls/syscall_64.tbl    |   2 +-
 include/linux/compat.h                    |  37 +---
 include/uapi/asm-generic/unistd.h         |  10 +-
 kernel/kexec.c                            | 116 ++++++-------
 kernel/sys_ni.c                           |   5 -
 mm/mempolicy.c                            | 196 +++++-----------------
 mm/migrate.c                              |  50 +++---
 15 files changed, 182 insertions(+), 306 deletions(-)

-- 
2.29.2

Cc: Christoph Hellwig <hch@infradead.org>
Cc: linux-arch <linux-arch@vger.kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>
Cc: linux-kernel@vger.kernel.org
Cc: Linux-MM <linux-mm@kvack.org>
Cc: kexec@lists.infradead.org

^ permalink raw reply	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2021-07-21 21:22 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-07-20 15:09 [PATCH v4 0/4] compat: remove compat_alloc_user_space callers Arnd Bergmann
2021-07-20 15:09 ` [PATCH v4 1/4] kexec: avoid compat_alloc_user_space Arnd Bergmann
2021-07-20 15:37   ` Christoph Hellwig
2021-07-21 21:22     ` Arnd Bergmann
2021-07-20 15:09 ` [PATCH v4 2/4] mm: simplify compat_sys_move_pages Arnd Bergmann
2021-07-20 15:09 ` [PATCH v4 3/4] mm: simplify compat numa syscalls Arnd Bergmann
2021-07-20 15:09 ` [PATCH v4 4/4] compat: remove some compat entry points Arnd Bergmann

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