On an exclusive line on Athlon a lock cycle is near enough free, its
just an ordering constraint. Since the line is in E state no other bus
master can hold a copy in cache so the atomicity is there. Ditto for newer
Intel processors
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/