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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2015-08-20 18:28:44 +0300
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2015-10-14 15:32:06 +0300
commit1ec2772e0c3ca3159035c03165355e355efc326b (patch)
tree469be3ba9032d367e4a796d6a31b25ccaab0d06a /drivers/watchdog
parentacdc9fc9a8121ce2ebcd7533bd72852c20b353f3 (diff)
downloadlinux-1ec2772e0c3ca3159035c03165355e355efc326b.tar.xz
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>
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/diag288_wdt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/watchdog/diag288_wdt.c b/drivers/watchdog/diag288_wdt.c
index a9a5210143ae..3db9d0e0673d 100644
--- a/drivers/watchdog/diag288_wdt.c
+++ b/drivers/watchdog/diag288_wdt.c
@@ -29,6 +29,7 @@
#include <linux/watchdog.h>
#include <linux/suspend.h>
#include <asm/ebcdic.h>
+#include <asm/diag.h>
#include <linux/io.h>
#include <linux/uaccess.h>
@@ -94,12 +95,14 @@ static int __diag288(unsigned int func, unsigned int timeout,
static int __diag288_vm(unsigned int func, unsigned int timeout,
char *cmd, size_t len)
{
+ diag_stat_inc(DIAG_STAT_X288);
return __diag288(func, timeout, virt_to_phys(cmd), len);
}
static int __diag288_lpar(unsigned int func, unsigned int timeout,
unsigned long action)
{
+ diag_stat_inc(DIAG_STAT_X288);
return __diag288(func, timeout, action, 0);
}
@@ -141,6 +144,7 @@ static int wdt_stop(struct watchdog_device *dev)
{
int ret;
+ diag_stat_inc(DIAG_STAT_X288);
ret = __diag288(WDT_FUNC_CANCEL, 0, 0, 0);
return ret;
}