On 10/01/16 14:21, Michael S. Tsirkin wrote: > drivers/xen/events/events_fifo.c uses rmb() to communicate with the > other side. > > For guests compiled with CONFIG_SMP, smp_rmb would be sufficient, so > rmb() here is only needed if a non-SMP guest runs on an SMP host. > > Switch to the virt_rmb barrier which serves this exact purpose. > > Pull in asm/barrier.h here to make sure the file is self-contained. > > Suggested-by: David Vrabel <david.vra...@citrix.com> > Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Acked-by: David Vrabel <david.vra...@citrix.com> David _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
