tools/virtio: use {READ,WRITE}_ONCE() in uaccess.h

As a step towards killing off ACCESS_ONCE, use {READ,WRITE}_ONCE() for the
virtio tools uaccess primitives, pulling these in from <linux/compiler.h>.

With this done, we can kill off the now-unused ACCESS_ONCE() definition.

Signed-off-by: Mark Rutland <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: Michael S. Tsirkin <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Reviewed-by: Jason Wang <[email protected]>

0 files changed, 0 insertions, 0 deletions