On 16/3/07 11:41, "Andrew Morton" <[EMAIL PROTECTED]> wrote:
>> It's needed for writing data /after/ reading the consumer index that shows >> you have space to write. Looking through xenbus_comms.c I think all the >> barriers are correct except there is a spurious extra mb() in xb_read(), >> where there is a later rmb() which is sufficient by itself. All the others >> have a purpose. >> > > If Ingo couldn't work this out from reading the code then nobody else can, > and we have a maintainability problem which can only be solved with > adequate commenting. Agreed. I've fixed up the commenting, removed the spurious mb(), and I just need Jeremy to merge that change into the Xen pv_ops patchset. :-) -- Keir - 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/
