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Date: Mon, 16 Nov 2015 19:49:15 +0000
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Subject: Re: [PATCH v2 01/12] mm/memblock: add MEMBLOCK_NOMAP attribute to
 memblock memory table
Message-ID: <20151116194914.GK8644@n2100.arm.linux.org.uk>
References: <1447698757-8762-1-git-send-email-ard.biesheuvel@linaro.org>
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 <20151116185859.GF8644@n2100.arm.linux.org.uk>
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To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, "linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>, Matt Fleming <matt.fleming@intel.com>, Will Deacon <will.deacon@arm.com>, Grant Likely <grant.likely@linaro.org>, Catalin Marinas <catalin.marinas@arm.com>, Mark Rutland <mark.rutland@arm.com>, Leif Lindholm <leif.lindholm@linaro.org>, Roy Franz <roy.franz@linaro.org>, Mark Salter <msalter@redhat.com>, Ryan Harkin <ryan.harkin@linaro.org>, Andrew Morton <akpm@linux-foundation.org>, "linux-mm@kvack.org" <linux-mm@kvack.org>

On Mon, Nov 16, 2015 at 08:09:38PM +0100, Ard Biesheuvel wrote:
> The main difference is that memblock_is_memory() still returns true
> for the region. This is useful in some cases, e.g., to decide which
> attributes to use when mapping.

Ok, so we'd need to switch to using memblock_is_map_memory() instead
for pfn_valid() then.

-- 
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