3 files changed, 13 insertions, 3 deletions

diff --git a/net/core/dst.c b/net/core/dst.c
index 836ec6606925..1a53fb39b7e0 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -99,7 +99,14 @@ static void dst_run_gc(unsigned long dummy)
         printk("dst_total: %d/%d %ld\n",
                atomic_read(&dst_total), delayed,  dst_gc_timer_expires);
 #endif
-        mod_timer(&dst_gc_timer, jiffies + dst_gc_timer_expires);
+        /* if the next desired timer is more than 4 seconds in the future
+         * then round the timer to whole seconds
+         */
+        if (dst_gc_timer_expires > 4*HZ)
+                mod_timer(&dst_gc_timer,
+                        round_jiffies(jiffies + dst_gc_timer_expires));
+        else
+                mod_timer(&dst_gc_timer, jiffies + dst_gc_timer_expires);
 
 out:
         spin_unlock(&dst_lock);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 9e26f38ea6e5..054d46493d2b 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -696,7 +696,10 @@ next_elt:
         if (!expire)
                 expire = 1;
 
-        mod_timer(&tbl->gc_timer, now + expire);
+        if (expire>HZ)
+                mod_timer(&tbl->gc_timer, round_jiffies(now + expire));
+        else
+                mod_timer(&tbl->gc_timer, now + expire);
 
         write_unlock(&tbl->lock);
 }
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index bc116bd6937c..3b6e6a780927 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -209,7 +209,7 @@ static void dev_watchdog(unsigned long arg)
                                        dev->name);
                                 dev->tx_timeout(dev);
                         }
-                        if (!mod_timer(&dev->watchdog_timer, jiffies + dev->watchdog_timeo))
+                        if (!mod_timer(&dev->watchdog_timer, round_jiffies(jiffies + dev->watchdog_timeo)))
                                 dev_hold(dev);
                 }
         }