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sched: Remove unused cpu_nr_migrations()

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cpu_nr_migrations() is not used, remove it.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4AF12A66.6020609@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Hiroshi Shimamoto 2009-11-04 16:16:54 +09:00 committed by Ingo Molnar
parent 2a2bb3142d
commit 9824a2b728
2 changed files with 0 additions and 12 deletions
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1
include/linux/sched.h
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@ -145,7 +145,6 @@ extern unsigned long this_cpu_load(void);
extern void calc_global_load(void); extern void calc_global_load(void);
extern u64 cpu_nr_migrations(int cpu);
extern unsigned long get_parent_ip(unsigned long addr); extern unsigned long get_parent_ip(unsigned long addr);

11
kernel/sched.c
View file

@ -541,7 +541,6 @@ struct rq {
struct load_weight load; struct load_weight load;
unsigned long nr_load_updates; unsigned long nr_load_updates;
u64 nr_switches; u64 nr_switches;
u64 nr_migrations_in;
struct cfs_rq cfs; struct cfs_rq cfs;
struct rt_rq rt; struct rt_rq rt;
@ -2049,7 +2048,6 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
#endif #endif
if (old_cpu != new_cpu) { if (old_cpu != new_cpu) {
p->se.nr_migrations++; p->se.nr_migrations++;
new_rq->nr_migrations_in++;
#ifdef CONFIG_SCHEDSTATS #ifdef CONFIG_SCHEDSTATS
if (task_hot(p, old_rq->clock, NULL)) if (task_hot(p, old_rq->clock, NULL))
schedstat_inc(p, se.nr_forced2_migrations); schedstat_inc(p, se.nr_forced2_migrations);
@ -2988,15 +2986,6 @@ static void calc_load_account_active(struct rq *this_rq)
} }
} }
/*
* Externally visible per-cpu scheduler statistics:
* cpu_nr_migrations(cpu) - number of migrations into that cpu
*/
u64 cpu_nr_migrations(int cpu)
{
return cpu_rq(cpu)->nr_migrations_in;
}
/* /*
* Update rq->cpu_load[] statistics. This function is usually called every * Update rq->cpu_load[] statistics. This function is usually called every
* scheduler tick (TICK_NSEC). * scheduler tick (TICK_NSEC).