On Sat, 29 Sep 2007, Nick Piggin wrote: > > OK this was going to be a quick patch, but after sleeping on it, I think > it deserves a better analysis... I can prove the comment is incorrect with a > test program, but I'm not as sure about my thinking that leads me to call it > also misleading.
You're 100% right, that comment is total crap. An lfence is *not* a memory barrier, it's just a read memory barrier. Although on some microarchitectures they may of course end up being the same thing. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/