linux-kernel - Re: [PATCH 06/17] lib: percpu_counter_init

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Date:	Tue, 17 Jul 2007 12:35:08 -0400
From:	Josef Sipek <jsipek@....cs.sunysb.edu>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	miklos@...redi.hu, akpm@...ux-foundation.org, neilb@...e.de,
	dgc@....com, tomoki.sekiyama.qu@...achi.com, nikita@...sterfs.com,
	trond.myklebust@....uio.no, yingchao.zhou@...il.com, andrea@...e.de
Subject: Re: [PATCH 06/17] lib: percpu_counter_init_irq

On Thu, Jun 14, 2007 at 11:58:23PM +0200, Peter Zijlstra wrote:
> provide a way to init percpu_counters that are supposed to be used from irq
> safe contexts.
> 
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> ---
>  include/linux/percpu_counter.h |    4 ++++
>  lib/percpu_counter.c           |    8 ++++++++
>  2 files changed, 12 insertions(+)
> 
> Index: linux-2.6/include/linux/percpu_counter.h
> ===================================================================
> --- linux-2.6.orig/include/linux/percpu_counter.h
> +++ linux-2.6/include/linux/percpu_counter.h
> @@ -31,6 +31,8 @@ struct percpu_counter {
>  #endif
>  
>  void percpu_counter_init(struct percpu_counter *fbc, s64 amount);
> +void percpu_counter_init_irq(struct percpu_counter *fbc, s64 amount);
> +
>  void percpu_counter_destroy(struct percpu_counter *fbc);
>  void percpu_counter_set(struct percpu_counter *fbc, s64 amount);
>  void __percpu_counter_mod(struct percpu_counter *fbc, s32 amount, s32 batch);
> @@ -89,6 +91,8 @@ static inline void percpu_counter_init(s
>  	fbc->count = amount;
>  }
>  
> +#define percpu_counter_init_irq percpu_counter_init

Huh? I'm confused. You have prototypes for both, and now a #define?

Josef 'Jeff' Sipek.

-- 
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