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Subject[tip:timers/core] timers: Use this_cpu_read
Commit-ID:  7496351ad87e61e96b49dd7b43c6534e3401f566
Gitweb: http://git.kernel.org/tip/7496351ad87e61e96b49dd7b43c6534e3401f566
Author: Christoph Lameter <cl@linux.com>
AuthorDate: Tue, 30 Nov 2010 14:05:53 -0600
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sun, 12 Dec 2010 18:38:09 +0100

timers: Use this_cpu_read

Eric asked for this.

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

Signed-off-by: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: linux-mm@kvack.org
LKML-Reference: <alpine.DEB.2.00.1011301404490.4039@router.home>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
kernel/timer.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/timer.c b/kernel/timer.c
index 483e54b..beb97fd 100644
--- 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();


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