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>
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index e157cb2..1268d33 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -240,35 +240,6 @@
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 @@
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);
}