mm/metag: prepare for removing num_physpages and simplify mem_init()

Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: NJiang Liu <jiang.liu@huawei.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/metag/mm/init.c

@@ -388,22 +388,16 @@ void __init mem_init(void)
 	reset_all_zones_managed_pages();
 	for (tmp = highstart_pfn; tmp < highend_pfn; tmp++)
 		free_highmem_page(pfn_to_page(tmp));
-	num_physpages += totalhigh_pages;
 #endif /* CONFIG_HIGHMEM */
 
 	for_each_online_node(nid) {
 		pg_data_t *pgdat = NODE_DATA(nid);
 
-		num_physpages += pgdat->node_present_pages;
-
 		if (pgdat->node_spanned_pages)
 			free_all_bootmem_node(pgdat);
 	}
 
-	pr_info("Memory: %luk/%luk available\n",
-		(unsigned long)nr_free_pages() << (PAGE_SHIFT - 10),
-		num_physpages << (PAGE_SHIFT - 10));
-
+	mem_init_print_info(NULL);
 	show_mem(0);
 
 	return;