Merge "X86_64: Replace x86_64 xchg instruction use" am: a1eff4f am: 01098af
am: 540d0a1

* commit '540d0a16691b8c5c296c55f301438452d6ed2113':
  X86_64: Replace x86_64 xchg instruction use

Change-Id: I2a42d461bcbe2ee2a2750f30bcc69d4f70d96beb