linux-kernel - Re: [ckrm-tech] [PATCH 6/7] BC: kernel memory (core)

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Date:	Wed, 30 Aug 2006 12:25:26 -0700
From:	Chandra Seetharaman <sekharan@...ibm.com>
To:	Kirill Korotaev <dev@...ru>
Cc:	Andrew Morton <akpm@...l.org>, Rik van Riel <riel@...hat.com>,
	CKRM-Tech <ckrm-tech@...ts.sourceforge.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Christoph Hellwig <hch@...radead.org>,
	Andrey Savochkin <saw@...ru>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Matt Helsley <matthltc@...ibm.com>,
	Alexey Dobriyan <adobriyan@...l.ru>,
	Oleg Nesterov <oleg@...sign.ru>, devel@...nvz.org,
	Pavel Emelianov <xemul@...nvz.org>
Subject: Re: [ckrm-tech] [PATCH 6/7] BC: kernel memory (core)

On Tue, 2006-08-29 at 18:58 +0400, Kirill Korotaev wrote:
> --- ./include/bc/beancounter.h.bckmem	2006-08-28 12:47:52.000000000 +0400
> +++ ./include/bc/beancounter.h	2006-08-28 12:59:28.000000000 +0400
> @@ -12,7 +12,9 @@
>   *	Resource list.
>   */
>  
> -#define BC_RESOURCES	0
> +#define BC_KMEMSIZE	0
> +
> +#define BC_RESOURCES	1

<snip>

> --- ./kernel/bc/beancounter.c.bckmem	2006-08-28 12:52:11.000000000 +0400
> +++ ./kernel/bc/beancounter.c	2006-08-28 12:59:28.000000000 +0400
> @@ -20,6 +20,7 @@ static void init_beancounter_struct(stru
>  struct beancounter init_bc;
>  
>  const char *bc_rnames[] = {
> +	"kmemsize",	/* 0 */
>  };
>  
>  static struct hlist_head bc_hash[BC_HASH_SIZE];
> @@ -221,6 +222,8 @@ static void init_beancounter_syslimits(s
>  {
>  	int k;
>  
> +	bc->bc_parms[BC_KMEMSIZE].limit = 32 * 1024 * 1024;
> +
>  	for (k = 0; k < BC_RESOURCES; k++)
>  		bc->bc_parms[k].barrier = bc->bc_parms[k].limit;
>  }

As I mentioned in one of my earlier email
(http://marc.theaimsgroup.com/?l=linux-kernel&m=115619384500289&w=2),
IMHO, this way of defining an interface is not clean/clear (for
controller writers).

<snip>
-- 

----------------------------------------------------------------------
    Chandra Seetharaman               | Be careful what you choose....
              - sekharan@...ibm.com   |      .......you may get it.
----------------------------------------------------------------------


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