Messages in this thread | | | Date | Tue, 29 Oct 2013 11:21:31 +0100 | From | Peter Zijlstra <> | Subject | Re: perf events ring buffer memory barrier on powerpc |
| |
On Mon, Oct 28, 2013 at 10:58:58PM +0200, Victor Kaplansky wrote: > Oleg Nesterov <oleg@redhat.com> wrote on 10/28/2013 10:17:35 PM: > > > mb(); // XXXXXXXX: do we really need it? I think yes. > > Oh, it is hard to argue with feelings. Also, it is easy to be on > conservative side and put the barrier here just in case.
I'll make it a full mb for now and too am curious to see the end of this discussion explaining things ;-)
| |