linux-kernel - [PATCH] idle_at_tick is only used when CONFIG

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Date:	Fri, 13 Feb 2009 20:35:45 +0100
From:	Henrik Austad <henrik@...tad.us>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterez@...radead.org>,
	Henrik Austad <henrik@...tad.us>
Subject: [PATCH] idle_at_tick is only used when CONFIG_SMP is set

The idle_at_tick in struct rq is only used in SMP settings
and it does not make sense to have this in the rq in an UP setup.

Signed-off-by: Henrik Austad <henrik@...tad.us>
---
 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 8ee437a..a8a4abc 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -549,7 +549,6 @@ struct rq {
 	unsigned long nr_running;
 	#define CPU_LOAD_IDX_MAX 5
 	unsigned long cpu_load[CPU_LOAD_IDX_MAX];
-	unsigned char idle_at_tick;
 #ifdef CONFIG_NO_HZ
 	unsigned long last_tick_seen;
 	unsigned char in_nohz_recently;
@@ -590,6 +589,7 @@ struct rq {
 	struct root_domain *rd;
 	struct sched_domain *sd;
 
+	unsigned char idle_at_tick;
 	/* For active balancing */
 	int active_balance;
 	int push_cpu;
-- 
1.6.1

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