A couple of two more fixes, on top of tip:locking/urgent, to Alpha's
implementations of xchg() and cmpxchg():

  - The first, suggested by Will, removing the macro '__ASM__MB'
    in favour of smp_mb();

  - The second, reported by Will, adding a leading smp_mb().

Compile tested only.


Andrea Parri (2):
  locking/xchg/alpha: Use smp_mb() in place of __ASM__MB
  locking/xchg/alpha: Add leading smp_mb() to xchg(), cmpxchg()

 arch/alpha/include/asm/cmpxchg.h |  6 ------
 arch/alpha/include/asm/xchg.h    | 37 ++++++++++++++++++++++++++-----------
 2 files changed, 26 insertions(+), 17 deletions(-)


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