forked from Minki/linux
5bb0c9be2a
drivers/xen/xenbus/xenbus_comms.c uses full memory barriers to communicate with the other side. For guests compiled with CONFIG_SMP, smp_wmb and smp_mb would be sufficient, so mb() and wmb() here are only needed if a non-SMP guest runs on an SMP host. Switch to virt_xxx barriers which serve this exact purpose. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> |
||
---|---|---|
.. | ||
Makefile | ||
xenbus_client.c | ||
xenbus_comms.c | ||
xenbus_comms.h | ||
xenbus_dev_backend.c | ||
xenbus_dev_frontend.c | ||
xenbus_probe_backend.c | ||
xenbus_probe_frontend.c | ||
xenbus_probe.c | ||
xenbus_probe.h | ||
xenbus_xs.c |