percpu: add an indirection ptr for chunk page map access
authorTejun Heo <tj@kernel.org>
Fri, 6 Mar 2009 05:33:59 +0000 (14:33 +0900)
committerTejun Heo <tj@kernel.org>
Fri, 6 Mar 2009 05:33:59 +0000 (14:33 +0900)
commit3e24aa58907c62bc79d1094e941a374568f62522
tree1398a21daab0d20a32d7dd04bb8ecadae2e0df82
parent9a4f8a878b68d5a5d9ee60908a52cf6a55e1b823
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>
mm/percpu.c