time: Replace __get_cpu_var uses

Convert uses of __get_cpu_var for creating a address from a percpu
offset to this_cpu_ptr.

The two cases where get_cpu_var is used to actually access a percpu
variable are changed to use this_cpu_read/raw_cpu_read.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

6 files changed, 19 insertions, 19 deletions

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 1c2fe7de2842..5f2229ba53d6 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -1144,7 +1144,7 @@ static void __hrtimer_init(struct hrtimer *timer, clockid_t clock_id,
 
         memset(timer, 0, sizeof(struct hrtimer));
 
-        cpu_base = &__raw_get_cpu_var(hrtimer_bases);
+        cpu_base = raw_cpu_ptr(&hrtimer_bases);
 
         if (clock_id == CLOCK_REALTIME && mode != HRTIMER_MODE_ABS)
                 clock_id = CLOCK_MONOTONIC;
@@ -1187,7 +1187,7 @@ int hrtimer_get_res(const clockid_t which_clock, struct timespec *tp)
         struct hrtimer_cpu_base *cpu_base;
         int base = hrtimer_clockid_to_base(which_clock);
 
-        cpu_base = &__raw_get_cpu_var(hrtimer_bases);
+        cpu_base = raw_cpu_ptr(&hrtimer_bases);
         *tp = ktime_to_timespec(cpu_base->clock_base[base].resolution);
 
         return 0;
@@ -1376,7 +1376,7 @@ static void __hrtimer_peek_ahead_timers(void)
         if (!hrtimer_hres_active())
                 return;
 
-        td = &__get_cpu_var(tick_cpu_device);
+        td = this_cpu_ptr(&tick_cpu_device);
         if (td && td->evtdev)
                 hrtimer_interrupt(td->evtdev);
 }
diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 64c5990fd500..066f0ec05e48 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -554,7 +554,7 @@ int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
 void tick_check_oneshot_broadcast_this_cpu(void)
 {
         if (cpumask_test_cpu(smp_processor_id(), tick_broadcast_oneshot_mask)) {
-                struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+                struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
 
                 /*
                  * We might be in the middle of switching over from
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 0a0608edeb26..decfb5f6edb0 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -224,7 +224,7 @@ static void tick_setup_device(struct tick_device *td,
 
 void tick_install_replacement(struct clock_event_device *newdev)
 {
-        struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+        struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
         int cpu = smp_processor_id();
 
         clockevents_exchange_device(td->evtdev, newdev);
@@ -374,14 +374,14 @@ void tick_shutdown(unsigned int *cpup)
 
 void tick_suspend(void)
 {
-        struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+        struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
 
         clockevents_shutdown(td->evtdev);
 }
 
 void tick_resume(void)
 {
-        struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+        struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
         int broadcast = tick_resume_broadcast();
 
         clockevents_set_mode(td->evtdev, CLOCK_EVT_MODE_RESUME);
diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c
index 824109060a33..7ce740e78e1b 100644
--- a/kernel/time/tick-oneshot.c
+++ b/kernel/time/tick-oneshot.c
@@ -59,7 +59,7 @@ void tick_setup_oneshot(struct clock_event_device *newdev,
  */
 int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *))
 {
-        struct tick_device *td = &__get_cpu_var(tick_cpu_device);
+        struct tick_device *td = this_cpu_ptr(&tick_cpu_device);
         struct clock_event_device *dev = td->evtdev;
 
         if (!dev || !(dev->features & CLOCK_EVT_FEAT_ONESHOT) ||
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 99aa6ee3908f..73f90932282b 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -205,7 +205,7 @@ static void tick_nohz_restart_sched_tick(struct tick_sched *ts, ktime_t now);
  */
 void __tick_nohz_full_check(void)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
 
         if (tick_nohz_full_cpu(smp_processor_id())) {
                 if (ts->tick_stopped && !is_idle_task(current)) {
@@ -545,7 +545,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
         unsigned long seq, last_jiffies, next_jiffies, delta_jiffies;
         ktime_t last_update, expires, ret = { .tv64 = 0 };
         unsigned long rcu_delta_jiffies;
-        struct clock_event_device *dev = __get_cpu_var(tick_cpu_device).evtdev;
+        struct clock_event_device *dev = __this_cpu_read(tick_cpu_device.evtdev);
         u64 time_delta;
 
         time_delta = timekeeping_max_deferment();
@@ -813,7 +813,7 @@ void tick_nohz_idle_enter(void)
 
         local_irq_disable();
 
-        ts = &__get_cpu_var(tick_cpu_sched);
+        ts = this_cpu_ptr(&tick_cpu_sched);
         ts->inidle = 1;
         __tick_nohz_idle_enter(ts);
 
@@ -831,7 +831,7 @@ EXPORT_SYMBOL_GPL(tick_nohz_idle_enter);
  */
 void tick_nohz_irq_exit(void)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
 
         if (ts->inidle)
                 __tick_nohz_idle_enter(ts);
@@ -846,7 +846,7 @@ void tick_nohz_irq_exit(void)
  */
 ktime_t tick_nohz_get_sleep_length(void)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
 
         return ts->sleep_length;
 }
@@ -959,7 +959,7 @@ static int tick_nohz_reprogram(struct tick_sched *ts, ktime_t now)
  */
 static void tick_nohz_handler(struct clock_event_device *dev)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
         struct pt_regs *regs = get_irq_regs();
         ktime_t now = ktime_get();
 
@@ -979,7 +979,7 @@ static void tick_nohz_handler(struct clock_event_device *dev)
  */
 static void tick_nohz_switch_to_nohz(void)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
         ktime_t next;
 
         if (!tick_nohz_enabled)
@@ -1115,7 +1115,7 @@ early_param("skew_tick", skew_tick);
  */
 void tick_setup_sched_timer(void)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
         ktime_t now = ktime_get();
 
         /*
@@ -1184,7 +1184,7 @@ void tick_clock_notify(void)
  */
 void tick_oneshot_notify(void)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
 
         set_bit(0, &ts->check_clocks);
 }
@@ -1199,7 +1199,7 @@ void tick_oneshot_notify(void)
  */
 int tick_check_oneshot_change(int allow_nohz)
 {
-        struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
+        struct tick_sched *ts = this_cpu_ptr(&tick_cpu_sched);
 
         if (!test_and_clear_bit(0, &ts->check_clocks))
                 return 0;
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index aca5dfe2fa3d..04d8ed8399b0 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -655,7 +655,7 @@ static inline void debug_assert_init(struct timer_list *timer)
 static void do_init_timer(struct timer_list *timer, unsigned int flags,
                           const char *name, struct lock_class_key *key)
 {
-        struct tvec_base *base = __raw_get_cpu_var(tvec_bases);
+        struct tvec_base *base = raw_cpu_read(tvec_bases);
 
         timer->entry.next = NULL;
         timer->base = (void *)((unsigned long)base | flags);