From: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>
The page_alloc_init() name is really misleading because all this
function does is sets up CPU hotplug callbacks for the page allocator.
Rename it to page_alloc_init_cpuhp() so that name will reflect what the
function does.
Signed-off-by: Mike Rapoport (IBM) <rppt@xxxxxxxxxx>
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