Benjamin Herrenschmidt <[EMAIL PROTECTED]> wrote: > > Note that some kind of read barrier or compiler barrier should be needed > regardless, or we are just not sync'ing with anything at all (we may > have loaded the value ages ago and thus operate on a totally stale > value). I prefer a full barrier to also ensure all previous stores are > pushed out.
We already have a compiler barrier there in the form of cpu_relax. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <[EMAIL PROTECTED]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - 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/
