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SubjectRe: [PATCH] rcu: remove needless struct notifier_block predeclaration
On Mon, Mar 29, 2010 at 10:33:38AM +0800, Lai Jiangshan wrote:
>
> cleanup: remove needless struct notifier_block predeclaration

Good catch!

These forward declarations used to be essential. ;-)

If they have been made available on purpose, I am all for applying
this patch. But if their appearance is accidental, perhaps to
disappear again in the next release, I would keep the forward
declarations.

Could you please check?

Thanx, Paul

> diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
> index a519587..ae7b05e 100644
> --- a/include/linux/rcutiny.h
> +++ b/include/linux/rcutiny.h
> @@ -86,8 +86,6 @@ static inline void synchronize_rcu_bh_expedited(void)
> synchronize_sched();
> }
>
> -struct notifier_block;
> -
> #ifdef CONFIG_NO_HZ
>
> extern void rcu_enter_nohz(void);
> diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
> index 42cc3a0..3be62e1 100644
> --- a/include/linux/rcutree.h
> +++ b/include/linux/rcutree.h
> @@ -30,8 +30,6 @@
> #ifndef __LINUX_RCUTREE_H
> #define __LINUX_RCUTREE_H
>
> -struct notifier_block;
> -
> extern void rcu_sched_qs(int cpu);
> extern void rcu_bh_qs(int cpu);
> extern int rcu_needs_cpu(int cpu);
> --
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