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-rw-r--r--arch/arm/mm/init.c61
1 files changed, 34 insertions, 27 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 22217fe2650b..b5814b4b6f35 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -32,40 +32,51 @@ extern unsigned long phys_initrd_start;
extern unsigned long phys_initrd_size;
/*
- * The sole use of this is to pass memory configuration
- * data from paging_init to mem_init.
+ * This is used to pass memory configuration data from paging_init
+ * to mem_init, and by show_mem() to skip holes in the memory map.
*/
-static struct meminfo meminfo __initdata = { 0, };
+static struct meminfo meminfo = { 0, };
+
+#define for_each_nodebank(iter,mi,no) \
+ for (iter = 0; iter < mi->nr_banks; iter++) \
+ if (mi->bank[iter].node == no)
void show_mem(void)
{
int free = 0, total = 0, reserved = 0;
- int shared = 0, cached = 0, slab = 0, node;
+ int shared = 0, cached = 0, slab = 0, node, i;
+ struct meminfo * mi = &meminfo;
printk("Mem-info:\n");
show_free_areas();
printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
for_each_online_node(node) {
- struct page *page, *end;
-
- page = NODE_MEM_MAP(node);
- end = page + NODE_DATA(node)->node_spanned_pages;
-
- do {
- total++;
- if (PageReserved(page))
- reserved++;
- else if (PageSwapCache(page))
- cached++;
- else if (PageSlab(page))
- slab++;
- else if (!page_count(page))
- free++;
- else
- shared += page_count(page) - 1;
- page++;
- } while (page < end);
+ 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;
+
+ page = NODE_MEM_MAP(node) + pfn1;
+ end = NODE_MEM_MAP(node) + pfn2;
+
+ do {
+ total++;
+ if (PageReserved(page))
+ reserved++;
+ else if (PageSwapCache(page))
+ cached++;
+ else if (PageSlab(page))
+ slab++;
+ else if (!page_count(page))
+ free++;
+ else
+ shared += page_count(page) - 1;
+ page++;
+ } while (page < end);
+ }
}
printk("%d pages of RAM\n", total);
@@ -76,10 +87,6 @@ void show_mem(void)
printk("%d pages swap cached\n", cached);
}
-#define for_each_nodebank(iter,mi,no) \
- for (iter = 0; iter < mi->nr_banks; iter++) \
- if (mi->bank[iter].node == no)
-
/*
* FIXME: We really want to avoid allocating the bootmap bitmap
* over the top of the initrd. Hopefully, this is located towards