futex: Fix locking imbalance

[safe/jmp/linux-2.6] / kernel / timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index 5c1e49e..bbb5107 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -721,7 +721,7 @@ int mod_timer(struct timer_list *timer, unsigned long expires)
         * networking code - if the timer is re-modified
         * to be the same thing then just return:
         */
-       if (timer->expires == expires && timer_pending(timer))
+       if (timer_pending(timer) && timer->expires == expires)
                return 1;
 
        return __mod_timer(timer, expires, false, TIMER_NOT_PINNED);
@@ -1023,8 +1023,8 @@ static inline void __run_timers(struct tvec_base *base)
 #ifdef CONFIG_NO_HZ
 /*
  * Find out when the next timer event is due to happen. This
- * is used on S/390 to stop all activity when a cpus is idle.
- * This functions needs to be called disabled.
+ * is used on S/390 to stop all activity when a CPU is idle.
+ * This function needs to be called with interrupts disabled.
  */
 static unsigned long __next_timer_interrupt(struct tvec_base *base)
 {
@@ -1174,8 +1174,7 @@ void update_process_times(int user_tick)
        /* Note: this timer irq context must be accounted for as well. */
        account_process_tick(p, user_tick);
        run_local_timers();
-       if (rcu_pending(cpu))
-               rcu_check_callbacks(cpu, user_tick);
+       rcu_check_callbacks(cpu, user_tick);
        printk_tick();
        scheduler_tick();
        run_posix_cpu_timers(p);