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/nmi.h>
10#include <linux/quicklist.h>
11
12void show_mem(unsigned int filter)
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);
19
20	for_each_online_pgdat(pgdat) {
21		unsigned long flags;
22		int zoneid;
23
24		pgdat_resize_lock(pgdat, &flags);
25		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
26			struct zone *zone = &pgdat->node_zones[zoneid];
27			if (!populated_zone(zone))
28				continue;
29
30			total += zone->present_pages;
31			reserved = zone->present_pages - zone->managed_pages;
32
33			if (is_highmem_idx(zoneid))
34				highmem += zone->present_pages;
35		}
36		pgdat_resize_unlock(pgdat, &flags);
37	}
38
39	printk("%lu pages RAM\n", total);
40	printk("%lu pages HighMem/MovableOnly\n", highmem);
41	printk("%lu pages reserved\n", reserved);
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}

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Generic show_mem() implementation
 4 *
 5 * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
 
 6 */
 7
 8#include <linux/mm.h>
 9#include <linux/cma.h>
 
10
11void show_mem(unsigned int filter, nodemask_t *nodemask)
12{
13	pg_data_t *pgdat;
14	unsigned long total = 0, reserved = 0, highmem = 0;
15
16	printk("Mem-Info:\n");
17	show_free_areas(filter, nodemask);
18
19	for_each_online_pgdat(pgdat) {
 
20		int zoneid;
21
 
22		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
23			struct zone *zone = &pgdat->node_zones[zoneid];
24			if (!populated_zone(zone))
25				continue;
26
27			total += zone->present_pages;
28			reserved += zone->present_pages - zone_managed_pages(zone);
29
30			if (is_highmem_idx(zoneid))
31				highmem += zone->present_pages;
32		}
 
33	}
34
35	printk("%lu pages RAM\n", total);
36	printk("%lu pages HighMem/MovableOnly\n", highmem);
37	printk("%lu pages reserved\n", reserved);
38#ifdef CONFIG_CMA
39	printk("%lu pages cma reserved\n", totalcma_pages);
 
40#endif
41#ifdef CONFIG_MEMORY_FAILURE
42	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
43#endif
44}