The __u64 is 'unsigned long' on Power and 'unsigned long long' on x86_64.
Using PRI?64 does not help because, for instance, PRIu64 is 'lu'.

According to [1] the solution is to define __SANE_USERSPACE_TYPES__ for
Power builds

[1] http://thread.gmane.org/gmane.linux.kernel/1425475/focus=1427433Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Adrian Reber <areber@redhat.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>