Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Generic show_mem() implementation
3 *
4 * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
5 * All code subject to the GPL version 2.
6 */
7
8#include <linux/mm.h>
9#include <linux/quicklist.h>
10#include <linux/cma.h>
11
12void show_mem(unsigned int filter, nodemask_t *nodemask)
13{
14 pg_data_t *pgdat;
15 unsigned long total = 0, reserved = 0, highmem = 0;
16
17 printk("Mem-Info:\n");
18 show_free_areas(filter, nodemask);
19
20 for_each_online_pgdat(pgdat) {
21 int zoneid;
22
23 for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
24 struct zone *zone = &pgdat->node_zones[zoneid];
25 if (!populated_zone(zone))
26 continue;
27
28 total += zone->present_pages;
29 reserved += zone->present_pages - zone_managed_pages(zone);
30
31 if (is_highmem_idx(zoneid))
32 highmem += zone->present_pages;
33 }
34 }
35
36 printk("%lu pages RAM\n", total);
37 printk("%lu pages HighMem/MovableOnly\n", highmem);
38 printk("%lu pages reserved\n", reserved);
39#ifdef CONFIG_CMA
40 printk("%lu pages cma reserved\n", totalcma_pages);
41#endif
42#ifdef CONFIG_QUICKLIST
43 printk("%lu pages in pagetable cache\n",
44 quicklist_total_size());
45#endif
46#ifdef CONFIG_MEMORY_FAILURE
47 printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
48#endif
49}