[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_thinint.c b/drivers/s390/cio/qdio_thinint.c
index 5d9c666..64b59a5 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -8,6 +8,7 @@
  */
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/kernel_stat.h>
 #include <asm/atomic.h>
 #include <asm/debug.h>
 #include <asm/qdio.h>
@@ -127,6 +128,7 @@
 	struct qdio_q *q;
 
 	last_ai_time = S390_lowcore.int_clock;
+	kstat_cpu(smp_processor_id()).irqs[IOINT_QAI]++;
 
 	/*
 	 * SVS only when needed: issue SVS to benefit from iqdio interrupt