From: Paul Mundt <lethal@linux-sh.org>
Date: Thu, 25 Jun 2009 19:31:57 +0000 (+0900)
Subject: nommu: provide follow_pfn().
X-Git-Tag: v2.6.31-rc2~17^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dfc2f91ac29f5ef50e74bf15a1a6b6aa6b952e62;p=pandora-kernel.git

nommu: provide follow_pfn().

With the introduction of follow_pfn() as an exported symbol, modules have
begun making use of it. Unfortunately this was not reflected on nommu at
the time, so the in-tree users have subsequently all blown up with link
errors there.

This provides a simple follow_pfn() that just returns addr >> PAGE_SHIFT,
which will do the right thing on nommu. There is no need to do range
checking within the vma, as the find_vma() case will already take care of
this.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---

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