linux-kernel - Re: [PATCH 2/4] x86: ioremap: fix physical address check

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Message-ID: <4C1676C0.60105@zytor.com>
Date:	Mon, 14 Jun 2010 11:36:48 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
CC:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, jbarnes@...tuousgeek.org
Subject: Re: [PATCH 2/4] x86: ioremap: fix physical address check

On 06/14/2010 04:06 AM, Kenji Kaneshige wrote:
> Index: linux-2.6.34/include/linux/vmalloc.h
> ===================================================================
> --- linux-2.6.34.orig/include/linux/vmalloc.h
> +++ linux-2.6.34/include/linux/vmalloc.h
> @@ -30,7 +30,7 @@ struct vm_struct {
>  	unsigned long		flags;
>  	struct page		**pages;
>  	unsigned int		nr_pages;
> -	unsigned long		phys_addr;
> +	phys_addr_t		phys_addr;
>  	void			*caller;
>  };

This really doesn't look right at all.  If this was required then it
would seem that anything using high addresses would be broken... as such
I can only assume it matters only for lowmem pages...

	-hpa
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