tunnels: fix netns vs proto registration ordering

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

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index 931a4d9..0086628 100644 (file)
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -127,11 +127,11 @@ struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer,
        for (;;) {
                base = timer->base;
                if (likely(base != NULL)) {
-                       spin_lock_irqsave(&base->cpu_base->lock, *flags);
+                       raw_spin_lock_irqsave(&base->cpu_base->lock, *flags);
                        if (likely(base == timer->base))
                                return base;
                        /* The timer has migrated to another CPU: */
-                       spin_unlock_irqrestore(&base->cpu_base->lock, *flags);
+                       raw_spin_unlock_irqrestore(&base->cpu_base->lock, *flags);
                }
                cpu_relax();
        }
@@ -208,13 +208,13 @@ again:
 
                /* See the comment in lock_timer_base() */
                timer->base = NULL;
-               spin_unlock(&base->cpu_base->lock);
-               spin_lock(&new_base->cpu_base->lock);
+               raw_spin_unlock(&base->cpu_base->lock);
+               raw_spin_lock(&new_base->cpu_base->lock);
 
                if (cpu != this_cpu && hrtimer_check_target(timer, new_base)) {
                        cpu = this_cpu;
-                       spin_unlock(&new_base->cpu_base->lock);
-                       spin_lock(&base->cpu_base->lock);
+                       raw_spin_unlock(&new_base->cpu_base->lock);
+                       raw_spin_lock(&base->cpu_base->lock);
                        timer->base = base;
                        goto again;
                }
@@ -230,7 +230,7 @@ lock_hrtimer_base(const struct hrtimer *timer, unsigned long *flags)
 {
        struct hrtimer_clock_base *base = timer->base;
 
-       spin_lock_irqsave(&base->cpu_base->lock, *flags);
+       raw_spin_lock_irqsave(&base->cpu_base->lock, *flags);
 
        return base;
 }
@@ -628,12 +628,12 @@ static void retrigger_next_event(void *arg)
        base = &__get_cpu_var(hrtimer_bases);
 
        /* Adjust CLOCK_REALTIME offset */
-       spin_lock(&base->lock);
+       raw_spin_lock(&base->lock);
        base->clock_base[CLOCK_REALTIME].offset =
                timespec_to_ktime(realtime_offset);
 
        hrtimer_force_reprogram(base, 0);
-       spin_unlock(&base->lock);
+       raw_spin_unlock(&base->lock);
 }
 
 /*
@@ -694,9 +694,9 @@ static inline int hrtimer_enqueue_reprogram(struct hrtimer *timer,
 {
        if (base->cpu_base->hres_active && hrtimer_reprogram(timer, base)) {
                if (wakeup) {
-                       spin_unlock(&base->cpu_base->lock);
+                       raw_spin_unlock(&base->cpu_base->lock);
                        raise_softirq_irqoff(HRTIMER_SOFTIRQ);
-                       spin_lock(&base->cpu_base->lock);
+                       raw_spin_lock(&base->cpu_base->lock);
                } else
                        __raise_softirq_irqoff(HRTIMER_SOFTIRQ);
 
@@ -756,17 +756,33 @@ static inline void hrtimer_init_timer_hres(struct hrtimer *timer) { }
 
 #endif /* CONFIG_HIGH_RES_TIMERS */
 
-#ifdef CONFIG_TIMER_STATS
-void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer, void *addr)
+static inline void timer_stats_hrtimer_set_start_info(struct hrtimer *timer)
 {
+#ifdef CONFIG_TIMER_STATS
        if (timer->start_site)
                return;
-
-       timer->start_site = addr;
+       timer->start_site = __builtin_return_address(0);
        memcpy(timer->start_comm, current->comm, TASK_COMM_LEN);
        timer->start_pid = current->pid;
+#endif
 }
+
+static inline void timer_stats_hrtimer_clear_start_info(struct hrtimer *timer)
+{
+#ifdef CONFIG_TIMER_STATS
+       timer->start_site = NULL;
 #endif
+}
+
+static inline void timer_stats_account_hrtimer(struct hrtimer *timer)
+{
+#ifdef CONFIG_TIMER_STATS
+       if (likely(!timer_stats_active))
+               return;
+       timer_stats_update_stats(timer, timer->start_pid, timer->start_site,
+                                timer->function, timer->start_comm, 0);
+#endif
+}
 
 /*
  * Counterpart to lock_hrtimer_base above:
@@ -774,7 +790,7 @@ void __timer_stats_hrtimer_set_start_info(struct hrtimer *timer, void *addr)
 static inline
 void unlock_hrtimer_base(const struct hrtimer *timer, unsigned long *flags)
 {
-       spin_unlock_irqrestore(&timer->base->cpu_base->lock, *flags);
+       raw_spin_unlock_irqrestore(&timer->base->cpu_base->lock, *flags);
 }
 
 /**
@@ -1107,7 +1123,7 @@ ktime_t hrtimer_get_next_event(void)
        unsigned long flags;
        int i;
 
-       spin_lock_irqsave(&cpu_base->lock, flags);
+       raw_spin_lock_irqsave(&cpu_base->lock, flags);
 
        if (!hrtimer_hres_active()) {
                for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++, base++) {
@@ -1124,7 +1140,7 @@ ktime_t hrtimer_get_next_event(void)
                }
        }
 
-       spin_unlock_irqrestore(&cpu_base->lock, flags);
+       raw_spin_unlock_irqrestore(&cpu_base->lock, flags);
 
        if (mindelta.tv64 < 0)
                mindelta.tv64 = 0;
@@ -1206,11 +1222,11 @@ static void __run_hrtimer(struct hrtimer *timer, ktime_t *now)
         * they get migrated to another cpu, therefore its safe to unlock
         * the timer base.
         */
-       spin_unlock(&cpu_base->lock);
+       raw_spin_unlock(&cpu_base->lock);
        trace_hrtimer_expire_entry(timer, now);
        restart = fn(timer);
        trace_hrtimer_expire_exit(timer);
-       spin_lock(&cpu_base->lock);
+       raw_spin_lock(&cpu_base->lock);
 
        /*
         * Note: We clear the CALLBACK bit after enqueue_hrtimer and
@@ -1245,7 +1261,7 @@ void hrtimer_interrupt(struct clock_event_device *dev)
 retry:
        expires_next.tv64 = KTIME_MAX;
 
-       spin_lock(&cpu_base->lock);
+       raw_spin_lock(&cpu_base->lock);
        /*
         * We set expires_next to KTIME_MAX here with cpu_base->lock
         * held to prevent that a timer is enqueued in our queue via
@@ -1301,7 +1317,7 @@ retry:
         * against it.
         */
        cpu_base->expires_next = expires_next;
-       spin_unlock(&cpu_base->lock);
+       raw_spin_unlock(&cpu_base->lock);
 
        /* Reprogramming necessary ? */
        if (expires_next.tv64 == KTIME_MAX ||
@@ -1441,7 +1457,7 @@ void hrtimer_run_queues(void)
                        gettime = 0;
                }
 
-               spin_lock(&cpu_base->lock);
+               raw_spin_lock(&cpu_base->lock);
 
                while ((node = base->first)) {
                        struct hrtimer *timer;
@@ -1453,7 +1469,7 @@ void hrtimer_run_queues(void)
 
                        __run_hrtimer(timer, &base->softirq_time);
                }
-               spin_unlock(&cpu_base->lock);
+               raw_spin_unlock(&cpu_base->lock);
        }
 }
 
@@ -1609,7 +1625,7 @@ static void __cpuinit init_hrtimers_cpu(int cpu)
        struct hrtimer_cpu_base *cpu_base = &per_cpu(hrtimer_bases, cpu);
        int i;
 
-       spin_lock_init(&cpu_base->lock);
+       raw_spin_lock_init(&cpu_base->lock);
 
        for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++)
                cpu_base->clock_base[i].cpu_base = cpu_base;
@@ -1667,16 +1683,16 @@ static void migrate_hrtimers(int scpu)
         * The caller is globally serialized and nobody else
         * takes two locks at once, deadlock is not possible.
         */
-       spin_lock(&new_base->lock);
-       spin_lock_nested(&old_base->lock, SINGLE_DEPTH_NESTING);
+       raw_spin_lock(&new_base->lock);
+       raw_spin_lock_nested(&old_base->lock, SINGLE_DEPTH_NESTING);
 
        for (i = 0; i < HRTIMER_MAX_CLOCK_BASES; i++) {
                migrate_hrtimer_list(&old_base->clock_base[i],
                                     &new_base->clock_base[i]);
        }
 
-       spin_unlock(&old_base->lock);
-       spin_unlock(&new_base->lock);
+       raw_spin_unlock(&old_base->lock);
+       raw_spin_unlock(&new_base->lock);
 
        /* Check, if we got expired work to do */
        __hrtimer_peek_ahead_timers();