clocksource: Add CPU info to clocksource watchdog reporting

The clocksource watchdog reporting was improved by 0b046b217ad4c6.
I want to add the info of CPU where the watchdog detects a
deviation because it is necessary to identify the trouble spot
if the clocksource is TSC.

Signed-off-by: Seiichi Ikarashi <s.ikarashi@jp.fujitsu.com>
[jstultz: Tweaked commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 1347882..664de53 100644 (file)
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -218,8 +218,8 @@ static void clocksource_watchdog(unsigned long data)
 
                /* Check the deviation from the watchdog clocksource. */
                if (abs(cs_nsec - wd_nsec) > WATCHDOG_THRESHOLD) {
-                       pr_warn("timekeeping watchdog: Marking clocksource '%s' as unstable because the skew is too large:\n",
-                               cs->name);
+                       pr_warn("timekeeping watchdog on CPU%d: Marking clocksource '%s' as unstable because the skew is too large:\n",
+                               smp_processor_id(), cs->name);
                        pr_warn("                      '%s' wd_now: %llx wd_last: %llx mask: %llx\n",
                                watchdog->name, wdnow, wdlast, watchdog->mask);
                        pr_warn("                      '%s' cs_now: %llx cs_last: %llx mask: %llx\n",