[S390] vmur: add support for irq statistics
Add support for VMUR I/O interrupt statistics in /proc/interrupts.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index f7e4ae6..caef175 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -11,6 +11,7 @@
#define KMSG_COMPONENT "vmur"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+#include <linux/kernel_stat.h>
#include <linux/cdev.h>
#include <linux/slab.h>
@@ -302,6 +303,7 @@
{
struct urdev *urd;
+ kstat_cpu(smp_processor_id()).irqs[IOINT_VMR]++;
TRACE("ur_int_handler: intparm=0x%lx cstat=%02x dstat=%02x res=%u\n",
intparm, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat,
irb->scsw.cmd.count);