On Mon, Nov 2, 2015 at 5:14 PM, Paul E. McKenney <paul...@linux.vnet.ibm.com> wrote: > > You would ask that question when I am many thousands of miles from my > copy of the Alpha reference manual! ;-)
I don't think I've touched a paper manual in years. Too m uch effort to index and search. Look here http://download.majix.org/dec/alpha_arch_ref.pdf > There is explicit wording in that manual that says that no multi-variable > ordering is implied without explicit memory-barrier instructions. Right. But the whole "read -> conditional -> write" ends up being a dependency chain to *every* single write that happens after the conditional. So there may be no "multi-variable ordering" implied in any individual access, but despite that a simple "read + conditional" orders every single store that comes after it. Even if it orders them "individually". Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
