[ARM] Fix show_mem() for discontigmem
show_mem() was assuming incorrectly that the mem_map for any
node started at PFN 0. This is obviously wrong; fix it to
take account of node_start_pfn.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index b5814b4..7760193e 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -52,15 +52,18 @@
printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
for_each_online_node(node) {
+ pg_data_t *n = NODE_DATA(node);
+ struct page *map = n->node_mem_map - n->node_start_pfn;
+
for_each_nodebank (i,mi,node) {
unsigned int pfn1, pfn2;
struct page *page, *end;
- pfn1 = mi->bank[i].start >> PAGE_SHIFT;
- pfn2 = (mi->bank[i].size + mi->bank[i].start) >> PAGE_SHIFT;
+ pfn1 = __phys_to_pfn(mi->bank[i].start);
+ pfn2 = __phys_to_pfn(mi->bank[i].size + mi->bank[i].start);
- page = NODE_MEM_MAP(node) + pfn1;
- end = NODE_MEM_MAP(node) + pfn2;
+ page = map + pfn1;
+ end = map + pfn2;
do {
total++;