From 878ae1274944908e1863b06b03a2c94907afaa20 Mon Sep 17 00:00:00 2001
From: Richard Kennedy <richard@rsk.demon.co.uk>
Date: Mon, 9 Aug 2010 17:20:34 -0700
Subject: stop_machine: struct cpu_stopper, remove alignment padding on 64 bits

Reorder elements in structure cpu_stopper to remove alignment padding on
64 bit builds, this shrinks its size from 40 to 32 bytes saving 8 bytes
per cpu.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/stop_machine.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel')

diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 70f8d90331e..4372ccb2512 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -35,9 +35,9 @@ struct cpu_stop_done {
 /* the actual stopper, one per every possible cpu, enabled on online cpus */
 struct cpu_stopper {
 	spinlock_t		lock;
+	bool			enabled;	/* is this stopper enabled? */
 	struct list_head	works;		/* list of pending works */
 	struct task_struct	*thread;	/* stopper thread */
-	bool			enabled;	/* is this stopper enabled? */
 };
 
 static DEFINE_PER_CPU(struct cpu_stopper, cpu_stopper);
-- 
cgit v1.2.3-70-g09d2