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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-08-20 17:28:44 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-14 14:32:06 +0200 |
| commit | 1ec2772e0c3ca3159035c03165355e355efc326b (patch) | |
| tree | 469be3ba9032d367e4a796d6a31b25ccaab0d06a /drivers/watchdog | |
| parent | s390/bitops: implement cache friendly test_and_set_bit_lock (diff) | |
| download | linux-1ec2772e0c3ca3159035c03165355e355efc326b.tar.xz linux-1ec2772e0c3ca3159035c03165355e355efc326b.zip | |
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.c | 4 |
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; } |