linux-kernel - Re: [RFC PATCH v2, part4 09/39] mm: use totalram_pages instead of num

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Message-ID: <514EF10E.6070506@cogentembedded.com>
Date:	Sun, 24 Mar 2013 16:26:54 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Jiang Liu <liuj97@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	Jiang Liu <jiang.liu@...wei.com>,
	Wen Congyang <wency@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Minchan Kim <minchan@...nel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	Jianguo Wu <wujianguo@...wei.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Miklos Szeredi <miklos@...redi.hu>,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	fuse-devel@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: Re: [RFC PATCH v2, part4 09/39] mm: use totalram_pages instead of
 num_physpages at runtime

Hello.

On 24-03-2013 11:24, Jiang Liu wrote:

> The global variable num_physpages is scheduled to be removed, so use
> totalram_pages instead of num_physpages at runtime.

> Signed-off-by: Jiang Liu <jiang.liu@...wei.com>
> Cc: Miklos Szeredi <miklos@...redi.hu>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Alexey Kuznetsov <kuznet@....inr.ac.ru>
> Cc: James Morris <jmorris@...ei.org>
> Cc: Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>
> Cc: Patrick McHardy <kaber@...sh.net>
> Cc: fuse-devel@...ts.sourceforge.net
> Cc: linux-kernel@...r.kernel.org
> Cc: netdev@...r.kernel.org
[...]

> diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
> index 4750d2b..94a99a1 100644
> --- a/net/ipv4/inet_fragment.c
> +++ b/net/ipv4/inet_fragment.c
> @@ -60,7 +60,7 @@ void inet_frags_init(struct inet_frags *f)
>
>   	rwlock_init(&f->lock);
>
> -	f->rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^
> +	f->rnd = (u32) ((totalram_pages ^ (totalram_pages>>7)) ^

    Wouldn't hurt to add spaces around >> for consistency's sake.

>   				   (jiffies ^ (jiffies >> 6)));
>
>   	setup_timer(&f->secret_timer, inet_frag_secret_rebuild,

WBR, Sergei

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