linux-kernel - Re: [PATCH] mm: move lru_to_page to mm

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Date:	Mon, 21 Dec 2015 11:14:53 +0100
From:	Vlastimil Babka <vbabka@...e.cz>
To:	Geliang Tang <geliangtang@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...hsingularity.net>,
	Jens Axboe <axboe@...com>, Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH] mm: move lru_to_page to mm_inline.h

On 12/19/2015 10:08 AM, Geliang Tang wrote:
> Move lru_to_page() from internal.h to mm_inline.h.

The file already contains functionality related to lru.

> Signed-off-by: Geliang Tang <geliangtang@....com>

Acked-by: Vlastimil Babka <vbabka@...e.cz>

> ---
>   include/linux/mm_inline.h | 2 ++
>   mm/internal.h             | 2 --
>   mm/readahead.c            | 1 +
>   3 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
> index cf55945..712e8c3 100644
> --- a/include/linux/mm_inline.h
> +++ b/include/linux/mm_inline.h
> @@ -100,4 +100,6 @@ static __always_inline enum lru_list page_lru(struct page *page)
>   	return lru;
>   }
>
> +#define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
> +
>   #endif
> diff --git a/mm/internal.h b/mm/internal.h
> index ca49922..5d8ec89 100644
> --- a/mm/internal.h
> +++ b/mm/internal.h
> @@ -87,8 +87,6 @@ extern int isolate_lru_page(struct page *page);
>   extern void putback_lru_page(struct page *page);
>   extern bool zone_reclaimable(struct zone *zone);
>
> -#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru))
> -
>   /*
>    * in mm/rmap.c:
>    */
> diff --git a/mm/readahead.c b/mm/readahead.c
> index 0aff760..20e58e8 100644
> --- a/mm/readahead.c
> +++ b/mm/readahead.c
> @@ -17,6 +17,7 @@
>   #include <linux/pagemap.h>
>   #include <linux/syscalls.h>
>   #include <linux/file.h>
> +#include <linux/mm_inline.h>
>
>   #include "internal.h"
>
>

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