Commit 424c93fe authored by Nathan Zimmer's avatar Nathan Zimmer Committed by Ingo Molnar
Browse files

sched: Use this_rq() helper 



It is a few instructions more efficent to and slightly more
readable to use this_rq()-> instead of cpu_rq(smp_processor_id())-> .

Size comparison of kernel/sched/fair.o:

   text    data     bss     dec     hex filename
  27972     122      26   28120    6dd8 fair.o.before
  27956     122      26   28104    6dc8 fair.o.after

Signed-off-by: default avatarNathan Zimmer <nzimmer@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1368116643-87971-1-git-send-email-nzimmer@sgi.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 534c97b0

kernel/sched/fair.c

+2 −4
Original line number Diff line number Diff line
@@ -5418,10 +5418,9 @@ static inline void nohz_balance_exit_idle(int cpu) 
static inline void set_cpu_sd_state_busy(void)

{

	struct sched_domain *sd;

	int cpu = smp_processor_id();



	rcu_read_lock();

	sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd);

	sd = rcu_dereference_check_sched_domain(this_rq()->sd);



	if (!sd || !sd->nohz_idle)

		goto unlock;
@@ -5436,10 +5435,9 @@ unlock: 
void set_cpu_sd_state_idle(void)

{

	struct sched_domain *sd;

	int cpu = smp_processor_id();



	rcu_read_lock();

	sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd);

	sd = rcu_dereference_check_sched_domain(this_rq()->sd);



	if (!sd || sd->nohz_idle)

		goto unlock;

kernel/sched/rt.c

+1 −1
Original line number Diff line number Diff line
@@ -472,7 +472,7 @@ static int rt_se_boosted(struct sched_rt_entity *rt_se) 
#ifdef CONFIG_SMP

static inline const struct cpumask *sched_rt_period_mask(void)

{

	return cpu_rq(smp_processor_id())->rd->span;

	return this_rq()->rd->span;

}

#else

static inline const struct cpumask *sched_rt_period_mask(void)

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