1 files changed, 25 insertions, 29 deletions

diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index 914ccf983687..8b4eac0ca07d 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -156,7 +156,7 @@ static void __init propagate_e820_map_node(int nid)
  */
 static void __init allocate_pgdat(int nid)
 {
-        if (nid && node_has_online_mem(nid))
+        if (nid && node_has_online_mem(nid) && node_remap_start_vaddr[nid])
                 NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
         else {
                 NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(min_low_pfn));
@@ -164,16 +164,13 @@ static void __init allocate_pgdat(int nid)
         }
 }
 
-#ifdef CONFIG_DISCONTIGMEM
 /*
- * In the discontig memory model, a portion of the kernel virtual area (KVA)
- * is reserved and portions of nodes are mapped using it. This is to allow
- * node-local memory to be allocated for structures that would normally require
- * ZONE_NORMAL. The memory is allocated with alloc_remap() and callers
- * should be prepared to allocate from the bootmem allocator instead. This KVA
- * mechanism is incompatible with SPARSEMEM as it makes assumptions about the
- * layout of memory that are broken if alloc_remap() succeeds for some of the
- * map and fails for others
+ * In the DISCONTIGMEM and SPARSEMEM memory model, a portion of the kernel
+ * virtual address space (KVA) is reserved and portions of nodes are mapped
+ * using it. This is to allow node-local memory to be allocated for
+ * structures that would normally require ZONE_NORMAL. The memory is
+ * allocated with alloc_remap() and callers should be prepared to allocate
+ * from the bootmem allocator instead.
  */
 static unsigned long node_remap_start_pfn[MAX_NUMNODES];
 static void *node_remap_end_vaddr[MAX_NUMNODES];
@@ -290,25 +287,6 @@ static void init_remap_allocator(int nid)
                 (ulong) pfn_to_kaddr(highstart_pfn
                    + node_remap_offset[nid] + node_remap_size[nid]));
 }
-#else
-void *alloc_remap(int nid, unsigned long size)
-{
-        return NULL;
-}
-
-static unsigned long calculate_numa_remap_pages(void)
-{
-        return 0;
-}
-
-static void init_remap_allocator(int nid)
-{
-}
-
-void __init remap_numa_kva(void)
-{
-}
-#endif /* CONFIG_DISCONTIGMEM */
 
 extern void setup_bootmem_allocator(void);
 unsigned long __init setup_memory(void)
@@ -476,3 +454,21 @@ int memory_add_physaddr_to_nid(u64 addr)
 
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
+
+#if defined(CONFIG_ACPI_NUMA) && !defined(CONFIG_HAVE_ARCH_PARSE_SRAT)
+/*
+ * Dummy on 32-bit, for now:
+ */
+void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
+{
+}
+
+void __init
+acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
+{
+}
+
+void __init acpi_numa_arch_fixup(void)
+{
+}
+#endif