[S390] qdio: add qdio interrupts to interrupt statistics

Count traditional qdio interrupts and adapter interrupts for qdio
in the interrupt statistics.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index 5fcfa7f..194ea8c 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -14,6 +14,7 @@
 #include <linux/timer.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
+#include <linux/kernel_stat.h>
 #include <asm/atomic.h>
 #include <asm/debug.h>
 #include <asm/qdio.h>
@@ -970,6 +971,7 @@
 		return;
 	}
 
+	kstat_cpu(smp_processor_id()).irqs[IOINT_QDI]++;
 	if (irq_ptr->perf_stat_enabled)
 		irq_ptr->perf_stat.qdio_int++;