x86: only support sparsemem

sparsemem is only one supported, so could remove FLAT_NODE_MEM related,
that is only needed !SPARSEMEM

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 32 deletions

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index e157cb274b25..1268d33e7b6e 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -240,35 +240,6 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
         node_set_online(nodeid);
 }
 
-#ifdef CONFIG_FLAT_NODE_MEM_MAP
-/* Initialize final allocator for a zone */
-static void __init flat_setup_node_zones(int nodeid)
-{
-        unsigned long start_pfn, end_pfn, memmapsize, limit;
-
-        start_pfn = node_start_pfn(nodeid);
-        end_pfn = node_end_pfn(nodeid);
-
-        Dprintk(KERN_INFO "Setting up memmap for node %d %lx-%lx\n",
-                nodeid, start_pfn, end_pfn);
-
-        /*
-         * Try to allocate mem_map at end to not fill up precious <4GB
-         * memory.
-         */
-        memmapsize = sizeof(struct page) * (end_pfn-start_pfn);
-        limit = end_pfn << PAGE_SHIFT;
-
-        NODE_DATA(nodeid)->node_mem_map =
-                __alloc_bootmem_core(NODE_DATA(nodeid)->bdata,
-                                     memmapsize, SMP_CACHE_BYTES,
-                                     round_down(limit - memmapsize, PAGE_SIZE),
-                                     limit);
-}
-#else
-#define flat_setup_node_zones(i) do {} while (0)
-#endif
-
 /*
  * There are unfortunately some poorly designed mainboards around that
  * only connect memory to a single CPU. This breaks the 1:1 cpu->node
@@ -600,9 +571,6 @@ void __init paging_init(void)
         sparse_memory_present_with_active_regions(MAX_NUMNODES);
         sparse_init();
 
-        for_each_online_node(i)
-                flat_setup_node_zones(i);
-
         free_area_init_nodes(max_zone_pfns);
 }