linux-kernel - Re: [RFC mm][PATCH 1/5] mm counter cleanup

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Message-ID: <alpine.DEB.2.00.0912101126480.5481@router.home>
Date:	Thu, 10 Dec 2009 11:30:46 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	minchan.kim@...il.com, mingo@...e.hu
Subject: Re: [RFC mm][PATCH 1/5] mm counter cleanup

On Thu, 10 Dec 2009, KAMEZAWA Hiroyuki wrote:

> This patch modifies it to
>   - Define them in mm.h as inline functions
>   - Use array instead of macro's name creation. For making easier to add
>     new coutners.

Reviewed-by: Christoph Lameter <cl@...ux-foundation.org>

> @@ -454,8 +456,8 @@ static struct mm_struct * mm_init(struct
>  		(current->mm->flags & MMF_INIT_MASK) : default_dump_filter;
>  	mm->core_state = NULL;
>  	mm->nr_ptes = 0;
> -	set_mm_counter(mm, file_rss, 0);
> -	set_mm_counter(mm, anon_rss, 0);
> +	for (i = 0; i < NR_MM_COUNTERS; i++)
> +		set_mm_counter(mm, i, 0);


memset? Or add a clear_mm_counter function? This also occurred earlier in
init_rss_vec().

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