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From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, clameter@sgi.com
Subject: Re: [PATCH] 2/2 Prezeroing large blocks of pages during allocation Version 4
Date: Tue, 08 Mar 2005 15:14:23 +0900	[thread overview]
Message-ID: <422D42BF.4060506@jp.fujitsu.com> (raw)
In-Reply-To: <20050307194021.E6A86E594@skynet.csn.ul.ie>

Hi,

Mel Gorman wrote:

>+#define BITS_PER_ALLOC_TYPE 5
> #define ALLOC_KERNNORCLM 0
> #define ALLOC_KERNRCLM 1
> #define ALLOC_USERRCLM 2
> #define ALLOC_FALLBACK 3
>+#define ALLOC_USERZERO 4
>+#define ALLOC_KERNZERO 5
>

Now, 5bits per  MAX_ORDER pages.
I think it is simpler to use "char[]" for representing type of  memory 
alloc type than bitmap.

Thanks
-- Kame <kamezawa.hiroyu@jp.fujitsu.com>



WARNING: multiple messages have this Message-ID (diff)
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Mel Gorman <mel@csn.ul.ie>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, clameter@sgi.com
Subject: Re: [PATCH] 2/2 Prezeroing large blocks of pages during allocation Version 4
Date: Tue, 08 Mar 2005 15:14:23 +0900	[thread overview]
Message-ID: <422D42BF.4060506@jp.fujitsu.com> (raw)
In-Reply-To: <20050307194021.E6A86E594@skynet.csn.ul.ie>

Hi,

Mel Gorman wrote:

>+#define BITS_PER_ALLOC_TYPE 5
> #define ALLOC_KERNNORCLM 0
> #define ALLOC_KERNRCLM 1
> #define ALLOC_USERRCLM 2
> #define ALLOC_FALLBACK 3
>+#define ALLOC_USERZERO 4
>+#define ALLOC_KERNZERO 5
>

Now, 5bits per  MAX_ORDER pages.
I think it is simpler to use "char[]" for representing type of  memory 
alloc type than bitmap.

Thanks
-- Kame <kamezawa.hiroyu@jp.fujitsu.com>


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  reply	other threads:[~2005-03-08  6:13 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-07 19:40 [PATCH] 2/2 Prezeroing large blocks of pages during allocation Version 4 Mel Gorman
2005-03-07 19:40 ` Mel Gorman
2005-03-08  6:14 ` KAMEZAWA Hiroyuki [this message]
2005-03-08  6:14   ` KAMEZAWA Hiroyuki
2005-03-08 10:22   ` Mel Gorman
2005-03-08 10:22     ` Mel Gorman
2005-03-08 11:40     ` KAMEZAWA Hiroyuki
2005-03-08 11:40       ` KAMEZAWA Hiroyuki
2005-03-08 15:04       ` Mel Gorman
2005-03-08 15:04         ` Mel Gorman

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