Linus Torvalds writes: > > If you ask me, the need for mmiowb on some platforms merely shows that > > those platforms' implementations of spinlocks and read*/write* are > > buggy... > > You could also state that same as > > "If you ask me, the need for mmiowb on some platforms merely shows > that those platforms perform like a bat out of hell, and I think > they should be slower" > > because the fact is, x86 memory barrier rules are just about optimal for > performance.
... and x86 mmiowb is a no-op. It's not x86 that I think is buggy. Paul. - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
