Hi

In current tree, mem_map is allocated in mm/page_alloc.c::node_alloc_mem_map()
when !defined(CONFIG_VIRTUAL_MEM_MAP).

So, ia64's vmem_map initialization, which is done before calling free_area_init(),
seems to be different from other archs.

Following 2 patches modifies vmem_map init call sequence to fit to current tree.

all patches are against rc3-mm1.

This patch moves duplicated vmem_map creation call in contig.c/discontig.c to init.c

-- Kame <kamezawa.hiroyu@jp.fujitsu.com>