Equivalent of for_each_cpu_and, except it ORs the two masks together
so it iterates all the CPUs present in either mask.
Signed-off-by: NDave Chinner <dchinner@redhat.com>
Reviewed-by: NDarrick J. Wong <djwong@kernel.org>
Signed-off-by: NDarrick J. Wong <djwong@kernel.org>