diff options
| -rw-r--r-- | arch/x86/kernel/pvclock.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index eda37df016f0..5a2a517dd61b 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -102,10 +102,9 @@ u64 pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) */ last = atomic64_read(&last_value); do { - if (ret < last) + if (ret <= last) return last; - last = atomic64_cmpxchg(&last_value, last, ret); - } while (unlikely(last != ret)); + } while (!atomic64_try_cmpxchg(&last_value, &last, ret)); return ret; } |