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From: Seth Jennings <sjenning@linux.vnet.ibm.com>
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Bob Liu <bob.liu@oracle.com>, Mel Gorman <mgorman@suse.de>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Tomasz Stanislawski <t.stanislaws@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Minchan Kim <minchan@kernel.org>
Subject: Re: [PATCH v3 4/6] zbud: memset zbud_header to 0 during init
Date: Tue, 8 Oct 2013 15:48:19 -0500	[thread overview]
Message-ID: <20131008204819.GC8798@medulla.variantweb.net> (raw)
In-Reply-To: <1381238980-2491-5-git-send-email-k.kozlowski@samsung.com>

On Tue, Oct 08, 2013 at 03:29:38PM +0200, Krzysztof Kozlowski wrote:
> memset zbud_header to 0 during init instead of manually assigning 0 to
> members. Currently only two members needs to be initialized to 0 but
> further patches will add more of them.

Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>

> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
> ---
>  mm/zbud.c |    3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/mm/zbud.c b/mm/zbud.c
> index 6db0557..0edd880 100644
> --- a/mm/zbud.c
> +++ b/mm/zbud.c
> @@ -133,8 +133,7 @@ static int size_to_chunks(int size)
>  static struct zbud_header *init_zbud_page(struct page *page)
>  {
>  	struct zbud_header *zhdr = page_address(page);
> -	zhdr->first_chunks = 0;
> -	zhdr->last_chunks = 0;
> +	memset(zhdr, 0, sizeof(*zhdr));
>  	INIT_LIST_HEAD(&zhdr->buddy);
>  	INIT_LIST_HEAD(&zhdr->lru);
>  	return zhdr;
> -- 
> 1.7.9.5
> 

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  reply	other threads:[~2013-10-08 20:48 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-08 13:29 [PATCH v3 0/6] mm: migrate zbud pages Krzysztof Kozlowski
2013-10-08 13:29 ` [PATCH v3 1/6] zbud: use page ref counter for " Krzysztof Kozlowski
2013-10-08 20:43   ` Seth Jennings
2013-10-09  7:08     ` Krzysztof Kozlowski
2013-10-08 13:29 ` [PATCH v3 2/6] zbud: make freechunks a block local variable Krzysztof Kozlowski
2013-10-08 20:46   ` Seth Jennings
2013-10-08 13:29 ` [PATCH v3 3/6] mm: use mapcount for identifying zbud pages Krzysztof Kozlowski
2013-10-08 13:29 ` [PATCH v3 4/6] zbud: memset zbud_header to 0 during init Krzysztof Kozlowski
2013-10-08 20:48   ` Seth Jennings [this message]
2013-10-08 13:29 ` [PATCH v3 5/6] zswap: replace tree in zswap with radix tree in zbud Krzysztof Kozlowski
2013-10-09 15:30   ` Seth Jennings
2013-10-09 17:16     ` Seth Jennings
2013-10-10  7:01       ` Krzysztof Kozlowski
2013-10-08 13:29 ` [PATCH v3 6/6] mm: migrate zbud pages Krzysztof Kozlowski

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