[linux-2.6-block.git] / lib / show_mem.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Generic show_mem() implementation
 *
 * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
 */

#include <linux/mm.h>
#include <linux/quicklist.h>
#include <linux/cma.h>

void show_mem(unsigned int filter, nodemask_t *nodemask)
{
	pg_data_t *pgdat;
	unsigned long total = 0, reserved = 0, highmem = 0;

	printk("Mem-Info:\n");
	show_free_areas(filter, nodemask);

	for_each_online_pgdat(pgdat) {
		int zoneid;

		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
			struct zone *zone = &pgdat->node_zones[zoneid];
			if (!populated_zone(zone))
				continue;

			total += zone->present_pages;
			reserved += zone->present_pages - zone_managed_pages(zone);

			if (is_highmem_idx(zoneid))
				highmem += zone->present_pages;
		}
	}

	printk("%lu pages RAM\n", total);
	printk("%lu pages HighMem/MovableOnly\n", highmem);
	printk("%lu pages reserved\n", reserved);
#ifdef CONFIG_CMA
	printk("%lu pages cma reserved\n", totalcma_pages);
#endif
#ifdef CONFIG_QUICKLIST
	printk("%lu pages in pagetable cache\n",
		quicklist_total_size());
#endif
#ifdef CONFIG_MEMORY_FAILURE
	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
#endif
}
Commit	Line	Data
	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/quicklist.h>
	10	#include <linux/cma.h>
	11
	12	void 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	}