[SPARC64]: Give move verbose show_mem() output just like i386.

We now report everything i386 does except for highmem which
doesn't apply.
Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc64/mm/init.c

@@ -421,12 +421,47 @@ void __kprobes flush_icache_range(unsigned long start, unsigned long end)
 
 void show_mem(void)
 {
+	unsigned long total = 0, reserved = 0;
+	unsigned long shared = 0, cached = 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));
-	printk(KERN_INFO "%ld pages of RAM\n", num_physpages);
-	printk(KERN_INFO "%lu free pages\n", nr_free_pages());
+	for_each_online_pgdat(pgdat) {
+		unsigned long i, flags;
+
+		pgdat_resize_lock(pgdat, &flags);
+		for (i = 0; i < pgdat->node_spanned_pages; i++) {
+			struct page *page = pgdat_page_nr(pgdat, i);
+			total++;
+			if (PageReserved(page))
+				reserved++;
+			else if (PageSwapCache(page))
+				cached++;
+			else if (page_count(page))
+				shared += page_count(page) - 1;
+		}
+		pgdat_resize_unlock(pgdat, &flags);
+	}
+
+	printk(KERN_INFO "%lu pages of RAM\n", total);
+	printk(KERN_INFO "%lu reserved pages\n", reserved);
+	printk(KERN_INFO "%lu pages shared\n", shared);
+	printk(KERN_INFO "%lu pages swap cached\n", cached);
+
+	printk(KERN_INFO "%lu pages dirty\n",
+	       global_page_state(NR_FILE_DIRTY));
+	printk(KERN_INFO "%lu pages writeback\n",
+	       global_page_state(NR_WRITEBACK));
+	printk(KERN_INFO "%lu pages mapped\n",
+	       global_page_state(NR_FILE_MAPPED));
+	printk(KERN_INFO "%lu pages slab\n",
+		global_page_state(NR_SLAB_RECLAIMABLE) +
+		global_page_state(NR_SLAB_UNRECLAIMABLE));
+	printk(KERN_INFO "%lu pages pagetables\n",
+	       global_page_state(NR_PAGETABLE));
 }
 
 void mmu_info(struct seq_file *m)