1#include <linux/kernel.h>
2#include <linux/mm.h>
3#include <linux/swap.h>
4
5void show_mem(void)
6{
7#ifndef CONFIG_NEED_MULTIPLE_NODES
8	int pfn, total = 0, reserved = 0;
9	int shared = 0, cached = 0;
10	int highmem = 0;
11	struct page *page;
12
13	printk("Mem-info:\n");
14	show_free_areas();
15	printk("Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
16	pfn = max_mapnr;
17	while (pfn-- > 0) {
18		if (!pfn_valid(pfn))
19			continue;
20		page = pfn_to_page(pfn);
21		total++;
22		if (PageHighMem(page))
23			highmem++;
24		if (PageReserved(page))
25			reserved++;
26		else if (PageSwapCache(page))
27			cached++;
28		else if (page_count(page))
29			shared += page_count(page) - 1;
30	}
31	printk("%d pages of RAM\n", total);
32	printk("%d pages of HIGHMEM\n",highmem);
33	printk("%d reserved pages\n",reserved);
34	printk("%d pages shared\n",shared);
35	printk("%d pages swap cached\n",cached);
36#endif
37}
38