x86: consolidate xchg and xadd macros
authorJeremy Fitzhardinge <jeremy@goop.org>
Fri, 30 Sep 2011 19:14:10 +0000 (12:14 -0700)
committerJeremy Fitzhardinge <jeremy@goop.org>
Fri, 25 Nov 2011 18:43:12 +0000 (10:43 -0800)
They both have a basic "put new value in location, return old value"
pattern, so they can use the same macro easily.

Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>

No differences found