X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fia64%2Fmm%2Fcontig.c;h=ca4d41e5f177563c5739816c14ee563dc51ed87b;hb=958b7f37ee0fb2846c8d44310a68ae9605614ff9;hp=daf977ff2920e2c88aee4c6398a7d135bc22d802;hpb=97d41e90fe61399b99d74820cb7f2d6e0fbac91d;p=powerpc.git

diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index daf977ff29..ca4d41e5f1 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -30,47 +30,69 @@ static unsigned long max_gap;
 #endif
 
 /**
- * show_mem - display a memory statistics summary
+ * show_mem - give short summary of memory stats
  *
- * Just walks the pages in the system and describes where they're allocated.
+ * Shows a simple page count of reserved and used pages in the system.
+ * For discontig machines, it does this on a per-pgdat basis.
  */
-void
-show_mem (void)
+void show_mem(void)
 {
-	int i, total = 0, reserved = 0;
-	int shared = 0, cached = 0;
+	int i, total_reserved = 0;
+	int total_shared = 0, total_cached = 0;
+	unsigned long total_present = 0;
+	pg_data_t *pgdat;
 
 	printk(KERN_INFO "Mem-info:\n");
 	show_free_areas();
-
 	printk(KERN_INFO "Free swap:       %6ldkB\n",
 	       nr_swap_pages<<(PAGE_SHIFT-10));
-	i = max_mapnr;
-	for (i = 0; i < max_mapnr; i++) {
-		if (!pfn_valid(i)) {
+	printk(KERN_INFO "Node memory in pages:\n");
+	for_each_online_pgdat(pgdat) {
+		unsigned long present;
+		unsigned long flags;
+		int shared = 0, cached = 0, reserved = 0;
+
+		pgdat_resize_lock(pgdat, &flags);
+		present = pgdat->node_present_pages;
+		for(i = 0; i < pgdat->node_spanned_pages; i++) {
+			struct page *page;
+			if (pfn_valid(pgdat->node_start_pfn + i))
+				page = pfn_to_page(pgdat->node_start_pfn + i);
+			else {
 #ifdef CONFIG_VIRTUAL_MEM_MAP
-			if (max_gap < LARGE_GAP)
-				continue;
-			i = vmemmap_find_next_valid_pfn(0, i) - 1;
+				if (max_gap < LARGE_GAP)
+					continue;
 #endif
-			continue;
+				i = vmemmap_find_next_valid_pfn(pgdat->node_id,
+					 i) - 1;
+				continue;
+			}
+			if (PageReserved(page))
+				reserved++;
+			else if (PageSwapCache(page))
+				cached++;
+			else if (page_count(page))
+				shared += page_count(page)-1;
 		}
-		total++;
-		if (PageReserved(mem_map+i))
-			reserved++;
-		else if (PageSwapCache(mem_map+i))
-			cached++;
-		else if (page_count(mem_map + i))
-			shared += page_count(mem_map + i) - 1;
+		pgdat_resize_unlock(pgdat, &flags);
+		total_present += present;
+		total_reserved += reserved;
+		total_cached += cached;
+		total_shared += shared;
+		printk(KERN_INFO "Node %4d:  RAM: %11ld, rsvd: %8d, "
+		       "shrd: %10d, swpd: %10d\n", pgdat->node_id,
+		       present, reserved, shared, cached);
 	}
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d reserved pages\n", reserved);
-	printk(KERN_INFO "%d pages shared\n", shared);
-	printk(KERN_INFO "%d pages swap cached\n", cached);
-	printk(KERN_INFO "%ld pages in page table cache\n",
+	printk(KERN_INFO "%ld pages of RAM\n", total_present);
+	printk(KERN_INFO "%d reserved pages\n", total_reserved);
+	printk(KERN_INFO "%d pages shared\n", total_shared);
+	printk(KERN_INFO "%d pages swap cached\n", total_cached);
+	printk(KERN_INFO "Total of %ld pages in page table cache\n",
 	       pgtable_quicklist_total_size());
+	printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages());
 }
 
+
 /* physical address where the bootmem map is located */
 unsigned long bootmap_start;
 
@@ -174,6 +196,12 @@ find_memory (void)
 	reserve_bootmem(bootmap_start, bootmap_size);
 
 	find_initrd();
+
+#ifdef CONFIG_CRASH_DUMP
+	/* If we are doing a crash dump, we still need to know the real mem
+	 * size before original memory map is reset. */
+	saved_max_pfn = max_pfn;
+#endif
 }
 
 #ifdef CONFIG_SMP
@@ -226,18 +254,20 @@ void __init
 paging_init (void)
 {
 	unsigned long max_dma;
-	unsigned long nid = 0;
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
 
 	num_physpages = 0;
 	efi_memmap_walk(count_pages, &num_physpages);
 
+	memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
+#ifdef CONFIG_ZONE_DMA
 	max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
 	max_zone_pfns[ZONE_DMA] = max_dma;
+#endif
 	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
 #ifdef CONFIG_VIRTUAL_MEM_MAP
-	efi_memmap_walk(register_active_ranges, &nid);
+	efi_memmap_walk(register_active_ranges, NULL);
 	efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
 	if (max_gap < LARGE_GAP) {
 		vmem_map = (struct page *) 0;