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time: Replace __get_cpu_var uses

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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>
This commit is contained in:
Christoph Lameter
2014-08-17 12:30:25 -05:00
committed by Tejun Heo
parent bb964a92ce
commit 22127e93c5
10 changed files with 29 additions and 29 deletions
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20
kernel/time/tick-sched.c
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@@ -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;