[tip:sched/core] sched: Remove unused cpu_nr_migrations()

tip-bot for Hiroshi Shimamoto
2009-11-04T11:11:10Z

Commit-ID: 9824a2b728b63e7ff586b9fd9293c819be79f0f3
Gitweb: http://git.kernel.org/tip/9824a2b728b63e7ff586b9fd9293c819be79f0f3
Author: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
AuthorDate: Wed, 4 Nov 2009 16:16:54 +0900
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Wed, 4 Nov 2009 11:43:43 +0100

sched: Remove unused cpu_nr_migrations()

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>
---
include/linux/sched.h | 1 -
kernel/sched.c | 11 -----------
2 files changed, 0 insertions(+), 12 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 754b3de..dfc21fb 100644
--- 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);

diff --git a/kernel/sched.c b/kernel/sched.c
index 67be4d0..30fd0ba 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -541,7 +541,6 @@ 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;
@@ -2049,7 +2048,6 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
#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);
@@ -2989,15 +2987,6 @@ 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
* scheduler tick (TICK_NSEC).
*/