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Subject[067/123] sched: Remove unused cpu_nr_migrations()
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

commit 9824a2b728b63e7ff586b9fd9293c819be79f0f3 upstream

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>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
include/linux/sched.h | 1 -
kernel/sched.c | 11 -----------
2 files changed, 12 deletions(-)

--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -145,7 +145,6 @@ extern unsigned long this_cpu_load(void)


extern void calc_global_load(void);
-extern u64 cpu_nr_migrations(int cpu);

extern unsigned long get_parent_ip(unsigned long addr);

--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -542,7 +542,6 @@ struct rq {
struct load_weight load;
unsigned long nr_load_updates;
u64 nr_switches;
- u64 nr_migrations_in;

struct cfs_rq cfs;
struct rt_rq rt;
@@ -2089,7 +2088,6 @@ void set_task_cpu(struct task_struct *p,
#endif
if (old_cpu != new_cpu) {
p->se.nr_migrations++;
- new_rq->nr_migrations_in++;
#ifdef CONFIG_SCHEDSTATS
if (task_hot(p, old_rq->clock, NULL))
schedstat_inc(p, se.nr_forced2_migrations);
@@ -3048,15 +3046,6 @@ static void calc_load_account_active(str
}

/*
- * 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
* scheduler tick (TICK_NSEC).
*/



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