As the macro verifies the value is positive, rename it
to make the function clearer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit 3476436a44)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>