linux-kernel - [PATCH 00/18] x86: Ticket lock + cmpxchg cleanup

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Date:	Wed, 24 Aug 2011 14:36:57 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Nick Piggin <npiggin@...nel.dk>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
Subject: [PATCH 00/18] x86: Ticket lock + cmpxchg cleanup

From: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>

Hi all,

Another spin of the cmpxchg/xadd/ticketlock cleanups.

Changes from last post:
  - reorder all the cmpxchg/xadd patches first
  - change xadd to return prev rather than implicitly update arg
  - recast ticketlock cleanup in terms of xadd
  - drop conversion of unlock to C

This is also available at:
  git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git upstream/ticketlock-cleanup

 arch/x86/include/asm/atomic.h         |    8 +-
 arch/x86/include/asm/atomic64_64.h    |    6 +-
 arch/x86/include/asm/cacheflush.h     |    2 +-
 arch/x86/include/asm/cmpxchg.h        |  232 +++++++++++++++++++++++++++++++++
 arch/x86/include/asm/cmpxchg_32.h     |  128 ++----------------
 arch/x86/include/asm/cmpxchg_64.h     |  131 -------------------
 arch/x86/include/asm/rwsem.h          |   15 +--
 arch/x86/include/asm/spinlock.h       |  110 ++++------------
 arch/x86/include/asm/spinlock_types.h |   22 +++-
 arch/x86/include/asm/uv/uv_bau.h      |    6 +-
 arch/x86/kernel/acpi/boot.c           |   10 +-
 arch/x86/kernel/cpu/mcheck/mce.c      |    2 +-
 arch/x86/xen/p2m.c                    |   10 +-
 13 files changed, 311 insertions(+), 371 deletions(-)

Thanks,
	J

Jeremy Fitzhardinge (18):
  x86/ticketlock: clean up types and accessors
  x86/ticketlock: convert spin loop to C
  x86/ticketlock: Use C for __ticket_spin_unlock
  x86/ticketlock: make large and small ticket versions of spin_lock the
    same
  x86/ticketlock: make __ticket_spin_lock common
  x86/ticketlock: make __ticket_spin_trylock common
  x86: add xadd helper macro
  x86/ticketlock: use xadd helper
  x86/cmpxchg: linux/alternative.h has LOCK_PREFIX
  x86/cmpxchg: move 32-bit __cmpxchg_wrong_size to match 64 bit.
  x86/cmpxchg: move 64-bit set64_bit() to match 32-bit
  x86/cmpxchg: unify cmpxchg into cmpxchg.h
  x86: add cmpxchg_flag() variant
  x86/ticketlocks: use cmpxchg_flag for trylock
  x86: use cmpxchg_flag() where applicable
  x86: report xchg/cmpxchg/xadd usage errors consistently
  x86: add local and sync variants of xadd
  x86: use xadd helper more widely

 arch/x86/include/asm/atomic.h         |    4 +-
 arch/x86/include/asm/atomic64_64.h    |    4 +-
 arch/x86/include/asm/cacheflush.h     |    2 +-
 arch/x86/include/asm/cmpxchg.h        |  223 +++++++++++++++++++++++++++++++++
 arch/x86/include/asm/cmpxchg_32.h     |  128 ++-----------------
 arch/x86/include/asm/cmpxchg_64.h     |  131 -------------------
 arch/x86/include/asm/rwsem.h          |   11 +--
 arch/x86/include/asm/spinlock.h       |  140 +++++++--------------
 arch/x86/include/asm/spinlock_types.h |   22 +++-
 arch/x86/include/asm/uv/uv_bau.h      |    4 +-
 arch/x86/kernel/acpi/boot.c           |   10 +-
 arch/x86/kernel/cpu/mcheck/mce.c      |    2 +-
 arch/x86/xen/p2m.c                    |   10 +-
 13 files changed, 321 insertions(+), 370 deletions(-)

-- 
1.7.6

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