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[Xen-devel] [GIT PULL] ticketlock + cmpxchg cleanups


This is the final version of the ticketlock+cmpxchg series.  I dropped
the cmpxchg_flag() stuff, since it is not a clear win and not really
germane to the rest of the series.


The following changes since commit 61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf:

  Linux 2.6.39 (2011-05-18 21:06:34 -0700)

are available in the git repository at:

Jeremy Fitzhardinge (10):
      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 xadd helper macro
      x86: use xadd helper more widely
      x86/ticketlock: clean up types and accessors
      x86/ticketlock: convert spin loop to C
      x86/ticketlock: convert __ticket_spin_lock to use xadd()
      x86/ticketlock: make __ticket_spin_trylock common

 arch/x86/include/asm/atomic.h         |    8 +-
 arch/x86/include/asm/atomic64_64.h    |    6 +-
 arch/x86/include/asm/cmpxchg.h        |  198 +++++++++++++++++++++++++++++++++
 arch/x86/include/asm/cmpxchg_32.h     |  114 -------------------
 arch/x86/include/asm/cmpxchg_64.h     |  131 ----------------------
 arch/x86/include/asm/rwsem.h          |    8 +-
 arch/x86/include/asm/spinlock.h       |  110 +++++--------------
 arch/x86/include/asm/spinlock_types.h |   22 ++++-
 arch/x86/include/asm/uv/uv_bau.h      |    6 +-
 9 files changed, 250 insertions(+), 353 deletions(-)

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