AcoSail/kernel_optimize_test
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sched: eliminate __rq_clock() use

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eliminate __rq_clock() use by changing it to:

   __update_rq_clock(rq)
   now = rq->clock;

identity transformation - no change in behavior.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2007-08-09 11:16:47 +02:00
parent 2ab81159fa
commit c1b3da3ecd
2 changed files with 13 additions and 4 deletions
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8
kernel/sched.c
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@ -1967,9 +1967,12 @@ static void update_cpu_load(struct rq *this_rq)
unsigned long total_load = this_rq->ls.load.weight;
unsigned long this_load = total_load;
struct load_stat *ls = &this_rq->ls;
u64 now = __rq_clock(this_rq);
u64 now;
int i, scale;
__update_rq_clock(this_rq);
now = this_rq->clock;
this_rq->nr_load_updates++;
if (unlikely(!(sysctl_sched_features & SCHED_FEAT_PRECISE_CPU_LOAD)))
goto do_avg;
@ -3458,7 +3461,8 @@ asmlinkage void __sched schedule(void)
spin_lock_irq(&rq->lock);
clear_tsk_need_resched(prev);
now = __rq_clock(rq);
__update_rq_clock(rq);
now = rq->clock;
if (prev->state && !(preempt_count() & PREEMPT_ACTIVE)) {
if (unlikely((prev->state & TASK_INTERRUPTIBLE) &&

9
kernel/sched_fair.c
View File

@ -672,7 +672,10 @@ static void entity_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr)
{
struct rq *rq = rq_of(cfs_rq);
struct sched_entity *next;
u64 now = __rq_clock(rq);
u64 now;
__update_rq_clock(rq);
now = rq->clock;
/*
* Dequeue and enqueue the task to update its
@ -824,8 +827,10 @@ dequeue_task_fair(struct rq *rq, struct task_struct *p, int sleep, u64 now)
static void yield_task_fair(struct rq *rq, struct task_struct *p)
{
struct cfs_rq *cfs_rq = task_cfs_rq(p);
u64 now = __rq_clock(rq);
u64 now;
__update_rq_clock(rq);
now = rq->clock;
/*
* Dequeue and enqueue the task to update its
* position within the tree: