linux-kernel - Re: [PATCH 07/11] Memory compaction core

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Message-ID: <alpine.DEB.2.00.1003231253180.10178@router.home>
Date:	Tue, 23 Mar 2010 12:56:30 -0500 (CDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Mel Gorman <mel@....ul.ie>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Adam Litke <agl@...ibm.com>, Avi Kivity <avi@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	Minchan Kim <minchan.kim@...il.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 07/11] Memory compaction core

On Tue, 23 Mar 2010, Mel Gorman wrote:

> diff --git a/include/linux/swap.h b/include/linux/swap.h
> index 1f59d93..cf8bba7 100644
> --- a/include/linux/swap.h
> +++ b/include/linux/swap.h
> @@ -238,6 +239,11 @@ static inline void lru_cache_add_active_file(struct page *page)
>  	__lru_cache_add(page, LRU_ACTIVE_FILE);
>  }
>
> +/* LRU Isolation modes. */
> +#define ISOLATE_INACTIVE 0	/* Isolate inactive pages. */
> +#define ISOLATE_ACTIVE 1	/* Isolate active pages. */
> +#define ISOLATE_BOTH 2		/* Isolate both active and inactive pages. */
> +
>  /* linux/mm/vmscan.c */
>  extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
>  					gfp_t gfp_mask, nodemask_t *mask);
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index 79c8098..ef89600 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -839,11 +839,6 @@ keep:
>  	return nr_reclaimed;
>  }
>
> -/* LRU Isolation modes. */
> -#define ISOLATE_INACTIVE 0	/* Isolate inactive pages. */
> -#define ISOLATE_ACTIVE 1	/* Isolate active pages. */
> -#define ISOLATE_BOTH 2		/* Isolate both active and inactive pages. */
> -
>  /*
>   * Attempt to remove the specified page from its LRU.  Only take this page
>   * if it is of the appropriate PageActive status.  Pages which are being

Put the above in a separate patch?

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