linux-kernel - [tip:sched/core] sched: Remove unused cpu_nr

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Message-ID: <tip-9824a2b728b63e7ff586b9fd9293c819be79f0f3@git.kernel.org>
Date:	Wed, 4 Nov 2009 11:10:40 GMT
From:	tip-bot for Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, h-shimamoto@...jp.nec.com,
	hpa@...or.com, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:sched/core] sched: Remove unused cpu_nr_migrations()

Commit-ID:  9824a2b728b63e7ff586b9fd9293c819be79f0f3
Gitweb:     http://git.kernel.org/tip/9824a2b728b63e7ff586b9fd9293c819be79f0f3
Author:     Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
AuthorDate: Wed, 4 Nov 2009 16:16:54 +0900
Committer:  Ingo Molnar <mingo@...e.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@...jp.nec.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
LKML-Reference: <4AF12A66.6020609@...jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@...e.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).
  */
--
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