linux-kernel - Re: [PATCHv3 1/5] mm: drop page->slab

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Message-ID: <55DB3149.7040605@suse.cz>
Date:	Mon, 24 Aug 2015 16:59:21 +0200
From:	Vlastimil Babka <vbabka@...e.cz>
To:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hughd@...gle.com>
Cc:	Andrea Arcangeli <aarcange@...hat.com>,
	Dave Hansen <dave.hansen@...el.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.cz>,
	David Rientjes <rientjes@...gle.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCHv3 1/5] mm: drop page->slab_page

On 08/19/2015 11:21 AM, Kirill A. Shutemov wrote:
> Since 8456a648cf44 ("slab: use struct page for slab management") nobody
> uses slab_page field in struct page.
>
> Let's drop it.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> Acked-by: Christoph Lameter <cl@...ux.com>
> Acked-by: David Rientjes <rientjes@...gle.com>
> Cc: Joonsoo Kim <iamjoonsoo.kim@....com>
> Cc: Andi Kleen <ak@...ux.intel.com>

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

> ---
>   include/linux/mm_types.h | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
> index 0038ac7466fd..58620ac7f15c 100644
> --- a/include/linux/mm_types.h
> +++ b/include/linux/mm_types.h
> @@ -140,7 +140,6 @@ struct page {
>   #endif
>   		};
>
> -		struct slab *slab_page; /* slab fields */
>   		struct rcu_head rcu_head;	/* Used by SLAB
>   						 * when destroying via RCU
>   						 */
>

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