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-rw-r--r--arch/ia64/mm/discontig.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 83153ac18795..9153465d7fcc 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -308,6 +308,17 @@ static void __init reserve_pernode_space(void)
308 } 308 }
309} 309}
310 310
311static void __meminit scatter_node_data(void)
312{
313 pg_data_t **dst;
314 int node;
315
316 for_each_online_node(node) {
317 dst = LOCAL_DATA_ADDR(pgdat_list[node])->pg_data_ptrs;
318 memcpy(dst, pgdat_list, sizeof(pgdat_list));
319 }
320}
321
311/** 322/**
312 * initialize_pernode_data - fixup per-cpu & per-node pointers 323 * initialize_pernode_data - fixup per-cpu & per-node pointers
313 * 324 *
@@ -320,11 +331,8 @@ static void __init initialize_pernode_data(void)
320{ 331{
321 int cpu, node; 332 int cpu, node;
322 333
323 /* Copy the pg_data_t list to each node and init the node field */ 334 scatter_node_data();
324 for_each_online_node(node) { 335
325 memcpy(mem_data[node].node_data->pg_data_ptrs, pgdat_list,
326 sizeof(pgdat_list));
327 }
328#ifdef CONFIG_SMP 336#ifdef CONFIG_SMP
329 /* Set the node_data pointer for each per-cpu struct */ 337 /* Set the node_data pointer for each per-cpu struct */
330 for (cpu = 0; cpu < NR_CPUS; cpu++) { 338 for (cpu = 0; cpu < NR_CPUS; cpu++) {
@@ -783,3 +791,9 @@ void __init paging_init(void)
783 791
784 zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); 792 zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
785} 793}
794
795void arch_refresh_nodedata(int update_node, pg_data_t *update_pgdat)
796{
797 pgdat_list[update_node] = update_pgdat;
798 scatter_node_data();
799}