From 3e24aa58907c62bc79d1094e941a374568f62522 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 6 Mar 2009 14:33:59 +0900
Subject: [PATCH] percpu: add an indirection ptr for chunk page map access

Impact: allow sharing page map, no functional difference yet

Make chunk->page access indirect by adding a pointer and renaming the
actual array to page_ar.  This will be used by future changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
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