tree bb8f2dce7b5d0aa6ffe68aa6b97920d2ce32e164
parent dacb16b1a034fa7a0b868ee30758119fbfd90bc1
author Jan Beulich <JBeulich@novell.com> 1130713167 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1130722631 -0800

[PATCH] x86: cmpxchg improvements

This adjusts i386's cmpxchg patterns so that

- for word and long cmpxchg-es the compiler can utilize all possible
  registers

- cmpxchg8b gets disabled when the minimum specified hardware architectur
  doesn't support it (like was already happening for the byte, word, and
  long ones).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>