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-rw-r--r--kernel/softlockup.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 708d4882c0c3..68f7606b4160 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -40,14 +40,16 @@ static struct notifier_block panic_block = {
40 * resolution, and we don't need to waste time with a big divide when 40 * resolution, and we don't need to waste time with a big divide when
41 * 2^30ns == 1.074s. 41 * 2^30ns == 1.074s.
42 */ 42 */
43static unsigned long get_timestamp(void) 43static unsigned long get_timestamp(int this_cpu)
44{ 44{
45 return sched_clock() >> 30; /* 2^30 ~= 10^9 */ 45 return cpu_clock(this_cpu) >> 30; /* 2^30 ~= 10^9 */
46} 46}
47 47
48void touch_softlockup_watchdog(void) 48void touch_softlockup_watchdog(void)
49{ 49{
50 __raw_get_cpu_var(touch_timestamp) = get_timestamp(); 50 int this_cpu = raw_smp_processor_id();
51
52 __raw_get_cpu_var(touch_timestamp) = get_timestamp(this_cpu);
51} 53}
52EXPORT_SYMBOL(touch_softlockup_watchdog); 54EXPORT_SYMBOL(touch_softlockup_watchdog);
53 55
@@ -91,7 +93,7 @@ void softlockup_tick(void)
91 return; 93 return;
92 } 94 }
93 95
94 now = get_timestamp(); 96 now = get_timestamp(this_cpu);
95 97
96 /* Wake up the high-prio watchdog task every second: */ 98 /* Wake up the high-prio watchdog task every second: */
97 if (now > (touch_timestamp + 1)) 99 if (now > (touch_timestamp + 1))