From 1ec2772e0c3ca3159035c03165355e355efc326b Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Thu, 20 Aug 2015 17:28:44 +0200
Subject: s390/diag: add a statistic for diagnose calls

Introduce /sys/debug/kernel/diag_stat with a statistic how many diagnose
calls have been done by each CPU in the system.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/cpcmd.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'arch/s390/kernel/cpcmd.c')

diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c
index 199ec92..7f76891 100644
--- a/arch/s390/kernel/cpcmd.c
+++ b/arch/s390/kernel/cpcmd.c
@@ -14,6 +14,7 @@
 #include <linux/spinlock.h>
 #include <linux/stddef.h>
 #include <linux/string.h>
+#include <asm/diag.h>
 #include <asm/ebcdic.h>
 #include <asm/cpcmd.h>
 #include <asm/io.h>
@@ -70,6 +71,7 @@ int  __cpcmd(const char *cmd, char *response, int rlen, int *response_code)
 	memcpy(cpcmd_buf, cmd, cmdlen);
 	ASCEBC(cpcmd_buf, cmdlen);
 
+	diag_stat_inc(DIAG_STAT_X008);
 	if (response) {
 		memset(response, 0, rlen);
 		response_len = rlen;
-- 
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