linux-kernel - [GIT PULL] x86/percpu changes for v6.10

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Message-ID: <ZkHH0E9XmbUSEzA6@gmail.com>
Date: Mon, 13 May 2024 09:57:04 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, the arch/x86 maintainers <x86@...nel.org>,
	Uros Bizjak <ubizjak@...il.com>
Subject: [GIT PULL] x86/percpu changes for v6.10

Linus,

Please pull the latest x86/percpu Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-percpu-2024-05-13

   # HEAD: 93cfa544cf9e4771def159002304a2e366cd97af x86/percpu: Introduce raw_cpu_read_long() to reduce ifdeffery

x86/percpu changes for v6.10:

 - Expand the named address spaces optimizations down to
   GCC 9.1+.

 - Re-enable named address spaces with sanitizers for GCC 13.3+

 - Generate better this_percpu_xchg_op() code

 - Introduce raw_cpu_read_long() to reduce ifdeffery

 - Simplify the x86_this_cpu_test_bit() et al macros

 - Address Sparse warnings

 - Misc cleanups & fixes

 Thanks,

	Ingo

------------------>
Uros Bizjak (11):
      x86/percpu: Convert this_percpu_xchg_op() from asm() to C code, to generate better code
      x86/percpu: Move raw_percpu_xchg_op() to a better place
      x86/percpu: Re-enable named address spaces with KASAN for GCC 13.3+
      x86/percpu: Enable named address spaces for GCC 9.1+
      x86/percpu: Unify arch_raw_cpu_ptr() defines
      x86/percpu: Do not use this_cpu_read_stable_8() for 32-bit targets
      x86/percpu: Use __force to cast from __percpu address space
      x86/percpu: Re-enable named address spaces with sanitizers for GCC 13.3+
      x86/percpu: Fix x86_this_cpu_variable_test_bit() asm template
      x86/percpu: Rewrite x86_this_cpu_test_bit() and friends as macros
      x86/percpu: Introduce raw_cpu_read_long() to reduce ifdeffery


 arch/um/include/asm/cpufeature.h  |   3 +-
 arch/x86/Kconfig                  |  14 ++--
 arch/x86/include/asm/cpufeature.h |   3 +-
 arch/x86/include/asm/percpu.h     | 157 +++++++++++++++++---------------------
 4 files changed, 78 insertions(+), 99 deletions(-)