1 files changed, 5 insertions, 2 deletions

diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c
index 0fd93107ff9a..a37654991788 100644
--- a/arch/i386/kernel/tsc.c
+++ b/arch/i386/kernel/tsc.c
@@ -314,7 +314,8 @@ static struct clocksource clocksource_tsc = {
         .mult                   = 0, /* to be set */
         .shift                  = 22,
         .update_callback        = tsc_update_callback,
-        .is_continuous          = 1,
+        .flags                  = CLOCK_SOURCE_IS_CONTINUOUS |
+                                  CLOCK_SOURCE_MUST_VERIFY,
 };
 
 static int tsc_update_callback(void)
@@ -434,8 +435,10 @@ static int __init init_tsc_clocksource(void)
                 clocksource_tsc.mult = clocksource_khz2mult(current_tsc_khz,
                                                         clocksource_tsc.shift);
                 /* lower the rating if we already know its unstable: */
-                if (check_tsc_unstable())
+                if (check_tsc_unstable()) {
                         clocksource_tsc.rating = 0;
+                        clocksource_tsc.flags &= ~CLOCK_SOURCE_IS_CONTINUOUS;
+                }
 
                 init_timer(&verify_tsc_freq_timer);
                 verify_tsc_freq_timer.function = verify_tsc_freq;