linux-kernel - Re: [PATCH] x86: fix virt_addr_valid() with CONFIG_DEBUG

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Message-ID: <20081001165246.GY25711@one.firstfloor.org>
Date:	Wed, 1 Oct 2008 18:52:46 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Vegard Nossum <vegard.nossum@...il.com>
Cc:	Jiri Slaby <jirislaby@...il.com>,
	Vegard Nossum <vegardno@....uio.no>,
	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: fix virt_addr_valid() with CONFIG_DEBUG_VIRTUAL=y

> But it seems that the current virt_addr_valid() doesn't take this into
> account. Should virt_addr_valid() be modified (on both x86_32 and
> x86_64) to take into account the same checks as __phys_addr() does
> when DEBUG_VIRTUAL=y? Or is it enough to use pfn_valid()?

At least in Linus' tree virt_addr_valid() is just a wrapper
around pfn_valid()


-Andi
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