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From: Peter Zijlstra on 5 Aug 2010 07:50
On Thu, 2010-08-05 at 12:11 +0100, Richard Kennedy wrote:
> 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(a)rsk.demon.co.uk>

Looks good to me. Tejun will you take it or should I send it Ingo wards?

> ---
> diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
> index 70f8d90..4372ccb 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);
>
>


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