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d0ead15738
DISCONTIGMEM on x86-32 implements pfn -> nid mapping similarly to SPARSEMEM; however, it calls each mapping unit ELEMENT instead of SECTION. This patch renames it to SECTION so that PAGES_PER_SECTION is valid for both DISCONTIGMEM and SPARSEMEM. This will be used by the next patch to implement mapping granularity check. This patch is trivial constant rename. Signed-off-by: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/20110712074422.GA2872@htj.dyndns.org Cc: Hans Rosenfeld <hans.rosenfeld@amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>