timers: Use this_cpu_read

Eric asked for this.

[tglx: Because it generates faster code according to Erics ]

Signed-off-by: Christoph Lameter <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: [email protected]
LKML-Reference: <alpine.DEB.2.00.1011301404490[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>

diff --git a/kernel/timer.c b/kernel/timer.c
index 483e54ba5c935d1f19c9fb52c7640de650ad164b..beb97fd11ac23646d548b9a87d726540f6f8eff5 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1227,7 +1227,7 @@ static unsigned long cmp_next_hrtimer_event(unsigned long now,
  */
 unsigned long get_next_timer_interrupt(unsigned long now)
 {
-       struct tvec_base *base = __get_cpu_var(tvec_bases);
+       struct tvec_base *base = __this_cpu_read(tvec_bases);
        unsigned long expires;
 
        spin_lock(&base->lock);
@@ -1267,7 +1267,7 @@ void update_process_times(int user_tick)
  */
 static void run_timer_softirq(struct softirq_action *h)
 {
-       struct tvec_base *base = __get_cpu_var(tvec_bases);
+       struct tvec_base *base = __this_cpu_read(tvec_bases);
 
        hrtimer_run_pending();