tree 041c1013f123fb3177bed6b70375fdc4f6c0ddff
parent 4a7f340c6a75ec5fca23d9c80a59f3f28cc4a61e
author Jeremy Fitzhardinge <jeremy@goop.org> 1317235768 -0700
committer Jeremy Fitzhardinge <jeremy@goop.org> 1322246579 -0800

x86/cmpxchg: add a locked add() helper

Mostly to remove some conditional code in spinlock.h.

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