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From: Arnd Bergmann <arnd@arndb.de>
To: Christoph Hellwig <hch@infradead.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Eric Biederman <ebiederm@xmission.com>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-arch@vger.kernel.org,
	linux-mm@kvack.org, kexec@lists.infradead.org,
	Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 0/4] syscalls: remove compat_alloc_user_space callers
Date: Fri, 18 Sep 2020 15:24:35 +0200	[thread overview]
Message-ID: <20200918132439.1475479-1-arnd@arndb.de> (raw)

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.

I have patches for all other uses of compat_alloc_user_space() as well,
and would expect that we can subsequently remove the interface itself.

      Arnd

Arnd Bergmann (4):
  x86: add __X32_COND_SYSCALL() macro
  kexec: remove compat_sys_kexec_load syscall
  mm: remove compat_sys_move_pages
  mm: remove compat numa syscalls

 arch/arm64/include/asm/unistd32.h         |  12 +-
 arch/mips/kernel/syscalls/syscall_n32.tbl |  12 +-
 arch/mips/kernel/syscalls/syscall_o32.tbl |  12 +-
 arch/parisc/kernel/syscalls/syscall.tbl   |  10 +-
 arch/powerpc/kernel/syscalls/syscall.tbl  |  12 +-
 arch/s390/kernel/syscalls/syscall.tbl     |  12 +-
 arch/sparc/kernel/syscalls/syscall.tbl    |  12 +-
 arch/x86/entry/syscalls/syscall_32.tbl    |   6 +-
 arch/x86/entry/syscalls/syscall_64.tbl    |   4 +-
 arch/x86/include/asm/syscall_wrapper.h    |   5 +
 include/linux/compat.h                    |  26 ---
 include/uapi/asm-generic/unistd.h         |  12 +-
 kernel/kexec.c                            |  77 +++------
 kernel/sys_ni.c                           |   5 -
 mm/mempolicy.c                            | 193 +++++-----------------
 mm/migrate.c                              |  45 +++--
 16 files changed, 143 insertions(+), 312 deletions(-)

-- 
2.27.0


             reply	other threads:[~2020-09-18 13:25 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-18 13:24 Arnd Bergmann [this message]
2020-09-18 13:24 ` [PATCH 1/4] x86: add __X32_COND_SYSCALL() macro Arnd Bergmann
2020-09-19  5:35   ` Christoph Hellwig
2020-09-19 16:23     ` Andy Lutomirski
2020-09-19 17:14       ` hpa
2020-09-19 17:39         ` Andy Lutomirski
2020-09-19 17:45         ` Brian Gerst
2020-09-18 13:24 ` [PATCH 2/4] kexec: remove compat_sys_kexec_load syscall Arnd Bergmann
2020-09-19  5:37   ` Christoph Hellwig
2020-09-26 21:10     ` Arnd Bergmann
2020-09-18 13:24 ` [PATCH 3/4] mm: remove compat_sys_move_pages Arnd Bergmann
2020-09-19  5:38   ` Christoph Hellwig
2020-09-26 15:21     ` Arnd Bergmann
2020-09-18 13:24 ` [PATCH 4/4] mm: remove compat numa syscalls Arnd Bergmann
2020-09-19  5:41   ` Christoph Hellwig
2020-09-26 15:14     ` Arnd Bergmann

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