mm/show_mem.c - linux - Git at Google

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

 #include <linux/blkdev.h>
 #include <linux/cma.h>
 #include <linux/cpuset.h>
 #include <linux/highmem.h>
 #include <linux/hugetlb.h>
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/swap.h>
 #include <linux/vmstat.h>

 #include "internal.h"
 #include "swap.h"

 atomic_long_t _totalram_pages __read_mostly;
 EXPORT_SYMBOL(_totalram_pages);
 unsigned long totalreserve_pages __read_mostly;
 unsigned long totalcma_pages __read_mostly;

 static inline void show_node(struct zone *zone)
 {
 	if (IS_ENABLED(CONFIG_NUMA))
 		printk("Node %d ", zone_to_nid(zone));
 }

 long si_mem_available(void)
 {
 	long available;
 	unsigned long pagecache;
 	unsigned long wmark_low = 0;
 	unsigned long reclaimable;
 	struct zone *zone;

 	for_each_zone(zone)
 		wmark_low += low_wmark_pages(zone);

 	/*
 	 * Estimate the amount of memory available for userspace allocations,
 	 * without causing swapping or OOM.
 	 */
 	available = global_zone_page_state(NR_FREE_PAGES) - totalreserve_pages;

 	/*
 	 * Not all the page cache can be freed, otherwise the system will
 	 * start swapping or thrashing. Assume at least half of the page
 	 * cache, or the low watermark worth of cache, needs to stay.
 	 */
 	pagecache = global_node_page_state(NR_ACTIVE_FILE) +
 		global_node_page_state(NR_INACTIVE_FILE);
 	pagecache -= min(pagecache / 2, wmark_low);
 	available += pagecache;

 	/*
 	 * Part of the reclaimable slab and other kernel memory consists of
 	 * items that are in use, and cannot be freed. Cap this estimate at the
 	 * low watermark.
 	 */
 	reclaimable = global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B) +
 		global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE);
 	reclaimable -= min(reclaimable / 2, wmark_low);
 	available += reclaimable;

 	if (available < 0)
 		available = 0;
 	return available;
 }
 EXPORT_SYMBOL_GPL(si_mem_available);

 void si_meminfo(struct sysinfo *val)
 {
 	val->totalram = totalram_pages();
 	val->sharedram = global_node_page_state(NR_SHMEM);
 	val->freeram = global_zone_page_state(NR_FREE_PAGES);
 	val->bufferram = nr_blockdev_pages();
 	val->totalhigh = totalhigh_pages();
 	val->freehigh = nr_free_highpages();
 	val->mem_unit = PAGE_SIZE;
 }

 EXPORT_SYMBOL(si_meminfo);

 #ifdef CONFIG_NUMA
 void si_meminfo_node(struct sysinfo *val, int nid)
 {
 	int zone_type;		/* needs to be signed */
 	unsigned long managed_pages = 0;
 	unsigned long managed_highpages = 0;
 	unsigned long free_highpages = 0;
 	pg_data_t *pgdat = NODE_DATA(nid);

 	for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++)
 		managed_pages += zone_managed_pages(&pgdat->node_zones[zone_type]);
 	val->totalram = managed_pages;
 	val->sharedram = node_page_state(pgdat, NR_SHMEM);
 	val->freeram = sum_zone_node_page_state(nid, NR_FREE_PAGES);
 #ifdef CONFIG_HIGHMEM
 	for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++) {
 		struct zone *zone = &pgdat->node_zones[zone_type];

 		if (is_highmem(zone)) {
 			managed_highpages += zone_managed_pages(zone);
 			free_highpages += zone_page_state(zone, NR_FREE_PAGES);
 		}
 	}
 	val->totalhigh = managed_highpages;
 	val->freehigh = free_highpages;
 #else
 	val->totalhigh = managed_highpages;
 	val->freehigh = free_highpages;
 #endif
 	val->mem_unit = PAGE_SIZE;
 }
 #endif

 /*
  * Determine whether the node should be displayed or not, depending on whether
  * SHOW_MEM_FILTER_NODES was passed to show_free_areas().
  */
 static bool show_mem_node_skip(unsigned int flags, int nid, nodemask_t *nodemask)
 {
 	if (!(flags & SHOW_MEM_FILTER_NODES))
 		return false;

 	/*
 	 * no node mask - aka implicit memory numa policy. Do not bother with
 	 * the synchronization - read_mems_allowed_begin - because we do not
 	 * have to be precise here.
 	 */
 	if (!nodemask)
 		nodemask = &cpuset_current_mems_allowed;

 	return !node_isset(nid, *nodemask);
 }

 static void show_migration_types(unsigned char type)
 {
 	static const char types[MIGRATE_TYPES] = {
 		[MIGRATE_UNMOVABLE]	= 'U',
 		[MIGRATE_MOVABLE]	= 'M',
 		[MIGRATE_RECLAIMABLE]	= 'E',
 		[MIGRATE_HIGHATOMIC]	= 'H',
 #ifdef CONFIG_CMA
 		[MIGRATE_CMA]		= 'C',
 #endif
 #ifdef CONFIG_MEMORY_ISOLATION
 		[MIGRATE_ISOLATE]	= 'I',
 #endif
 	};
 	char tmp[MIGRATE_TYPES + 1];
 	char *p = tmp;
 	int i;

 	for (i = 0; i < MIGRATE_TYPES; i++) {
 		if (type & (1 << i))
 			*p++ = types[i];
 	}

 	*p = '\0';
 	printk(KERN_CONT "(%s) ", tmp);
 }

 static bool node_has_managed_zones(pg_data_t *pgdat, int max_zone_idx)
 {
 	int zone_idx;
 	for (zone_idx = 0; zone_idx <= max_zone_idx; zone_idx++)
 		if (zone_managed_pages(pgdat->node_zones + zone_idx))
 			return true;
 	return false;
 }

 /*
  * Show free area list (used inside shift_scroll-lock stuff)
  * We also calculate the percentage fragmentation. We do this by counting the
  * memory on each free list with the exception of the first item on the list.
  *
  * Bits in @filter:
  * SHOW_MEM_FILTER_NODES: suppress nodes that are not allowed by current's
  *   cpuset.
  */
 static void show_free_areas(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
 {
 	unsigned long free_pcp = 0;
 	int cpu, nid;
 	struct zone *zone;
 	pg_data_t *pgdat;

 	for_each_populated_zone(zone) {
 		if (zone_idx(zone) > max_zone_idx)
 			continue;
 		if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask))
 			continue;

 		for_each_online_cpu(cpu)
 			free_pcp += per_cpu_ptr(zone->per_cpu_pageset, cpu)->count;
 	}

 	printk("active_anon:%lu inactive_anon:%lu isolated_anon:%lu\n"
 		" active_file:%lu inactive_file:%lu isolated_file:%lu\n"
 		" unevictable:%lu dirty:%lu writeback:%lu\n"
 		" slab_reclaimable:%lu slab_unreclaimable:%lu\n"
 		" mapped:%lu shmem:%lu pagetables:%lu\n"
 		" sec_pagetables:%lu bounce:%lu\n"
 		" kernel_misc_reclaimable:%lu\n"
 		" free:%lu free_pcp:%lu free_cma:%lu\n",
 		global_node_page_state(NR_ACTIVE_ANON),
 		global_node_page_state(NR_INACTIVE_ANON),
 		global_node_page_state(NR_ISOLATED_ANON),
 		global_node_page_state(NR_ACTIVE_FILE),
 		global_node_page_state(NR_INACTIVE_FILE),
 		global_node_page_state(NR_ISOLATED_FILE),
 		global_node_page_state(NR_UNEVICTABLE),
 		global_node_page_state(NR_FILE_DIRTY),
 		global_node_page_state(NR_WRITEBACK),
 		global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B),
 		global_node_page_state_pages(NR_SLAB_UNRECLAIMABLE_B),
 		global_node_page_state(NR_FILE_MAPPED),
 		global_node_page_state(NR_SHMEM),
 		global_node_page_state(NR_PAGETABLE),
 		global_node_page_state(NR_SECONDARY_PAGETABLE),
 		global_zone_page_state(NR_BOUNCE),
 		global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE),
 		global_zone_page_state(NR_FREE_PAGES),
 		free_pcp,
 		global_zone_page_state(NR_FREE_CMA_PAGES));

 	for_each_online_pgdat(pgdat) {
 		if (show_mem_node_skip(filter, pgdat->node_id, nodemask))
 			continue;
 		if (!node_has_managed_zones(pgdat, max_zone_idx))
 			continue;

 		printk("Node %d"
 			" active_anon:%lukB"
 			" inactive_anon:%lukB"
 			" active_file:%lukB"
 			" inactive_file:%lukB"
 			" unevictable:%lukB"
 			" isolated(anon):%lukB"
 			" isolated(file):%lukB"
 			" mapped:%lukB"
 			" dirty:%lukB"
 			" writeback:%lukB"
 			" shmem:%lukB"
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 			" shmem_thp:%lukB"
 			" shmem_pmdmapped:%lukB"
 			" anon_thp:%lukB"
 #endif
 			" writeback_tmp:%lukB"
 			" kernel_stack:%lukB"
 #ifdef CONFIG_SHADOW_CALL_STACK
 			" shadow_call_stack:%lukB"
 #endif
 			" pagetables:%lukB"
 			" sec_pagetables:%lukB"
 			" all_unreclaimable? %s"
 			"\n",
 			pgdat->node_id,
 			K(node_page_state(pgdat, NR_ACTIVE_ANON)),
 			K(node_page_state(pgdat, NR_INACTIVE_ANON)),
 			K(node_page_state(pgdat, NR_ACTIVE_FILE)),
 			K(node_page_state(pgdat, NR_INACTIVE_FILE)),
 			K(node_page_state(pgdat, NR_UNEVICTABLE)),
 			K(node_page_state(pgdat, NR_ISOLATED_ANON)),
 			K(node_page_state(pgdat, NR_ISOLATED_FILE)),
 			K(node_page_state(pgdat, NR_FILE_MAPPED)),
 			K(node_page_state(pgdat, NR_FILE_DIRTY)),
 			K(node_page_state(pgdat, NR_WRITEBACK)),
 			K(node_page_state(pgdat, NR_SHMEM)),
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 			K(node_page_state(pgdat, NR_SHMEM_THPS)),
 			K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)),
 			K(node_page_state(pgdat, NR_ANON_THPS)),
 #endif
 			K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
 			node_page_state(pgdat, NR_KERNEL_STACK_KB),
 #ifdef CONFIG_SHADOW_CALL_STACK
 			node_page_state(pgdat, NR_KERNEL_SCS_KB),
 #endif
 			K(node_page_state(pgdat, NR_PAGETABLE)),
 			K(node_page_state(pgdat, NR_SECONDARY_PAGETABLE)),
 			pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES ?
 				"yes" : "no");
 	}

 	for_each_populated_zone(zone) {
 		int i;

 		if (zone_idx(zone) > max_zone_idx)
 			continue;
 		if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask))
 			continue;

 		free_pcp = 0;
 		for_each_online_cpu(cpu)
 			free_pcp += per_cpu_ptr(zone->per_cpu_pageset, cpu)->count;

 		show_node(zone);
 		printk(KERN_CONT
 			"%s"
 			" free:%lukB"
 			" boost:%lukB"
 			" min:%lukB"
 			" low:%lukB"
 			" high:%lukB"
 			" reserved_highatomic:%luKB"
 			" active_anon:%lukB"
 			" inactive_anon:%lukB"
 			" active_file:%lukB"
 			" inactive_file:%lukB"
 			" unevictable:%lukB"
 			" writepending:%lukB"
 			" present:%lukB"
 			" managed:%lukB"
 			" mlocked:%lukB"
 			" bounce:%lukB"
 			" free_pcp:%lukB"
 			" local_pcp:%ukB"
 			" free_cma:%lukB"
 			"\n",
 			zone->name,
 			K(zone_page_state(zone, NR_FREE_PAGES)),
 			K(zone->watermark_boost),
 			K(min_wmark_pages(zone)),
 			K(low_wmark_pages(zone)),
 			K(high_wmark_pages(zone)),
 			K(zone->nr_reserved_highatomic),
 			K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)),
 			K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)),
 			K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)),
 			K(zone_page_state(zone, NR_ZONE_INACTIVE_FILE)),
 			K(zone_page_state(zone, NR_ZONE_UNEVICTABLE)),
 			K(zone_page_state(zone, NR_ZONE_WRITE_PENDING)),
 			K(zone->present_pages),
 			K(zone_managed_pages(zone)),
 			K(zone_page_state(zone, NR_MLOCK)),
 			K(zone_page_state(zone, NR_BOUNCE)),
 			K(free_pcp),
 			K(this_cpu_read(zone->per_cpu_pageset->count)),
 			K(zone_page_state(zone, NR_FREE_CMA_PAGES)));
 		printk("lowmem_reserve[]:");
 		for (i = 0; i < MAX_NR_ZONES; i++)
 			printk(KERN_CONT " %ld", zone->lowmem_reserve[i]);
 		printk(KERN_CONT "\n");
 	}

 	for_each_populated_zone(zone) {
 		unsigned int order;
 		unsigned long nr[NR_PAGE_ORDERS], flags, total = 0;
 		unsigned char types[NR_PAGE_ORDERS];

 		if (zone_idx(zone) > max_zone_idx)
 			continue;
 		if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask))
 			continue;
 		show_node(zone);
 		printk(KERN_CONT "%s: ", zone->name);

 		spin_lock_irqsave(&zone->lock, flags);
 		for (order = 0; order < NR_PAGE_ORDERS; order++) {
 			struct free_area *area = &zone->free_area[order];
 			int type;

 			nr[order] = area->nr_free;
 			total += nr[order] << order;

 			types[order] = 0;
 			for (type = 0; type < MIGRATE_TYPES; type++) {
 				if (!free_area_empty(area, type))
 					types[order] |= 1 << type;
 			}
 		}
 		spin_unlock_irqrestore(&zone->lock, flags);
 		for (order = 0; order < NR_PAGE_ORDERS; order++) {
 			printk(KERN_CONT "%lu*%lukB ",
 			       nr[order], K(1UL) << order);
 			if (nr[order])
 				show_migration_types(types[order]);
 		}
 		printk(KERN_CONT "= %lukB\n", K(total));
 	}

 	for_each_online_node(nid) {
 		if (show_mem_node_skip(filter, nid, nodemask))
 			continue;
 		hugetlb_show_meminfo_node(nid);
 	}

 	printk("%ld total pagecache pages\n", global_node_page_state(NR_FILE_PAGES));

 	show_swap_cache_info();
 }

 void __show_mem(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
 {
 	unsigned long total = 0, reserved = 0, highmem = 0;
 	struct zone *zone;

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

 	for_each_populated_zone(zone) {

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

 		if (is_highmem(zone))
 			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_MEMORY_FAILURE
 	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
 #endif
 #ifdef CONFIG_MEM_ALLOC_PROFILING
 	{
 		struct codetag_bytes tags[10];
 		size_t i, nr;

 		nr = alloc_tag_top_users(tags, ARRAY_SIZE(tags), false);
 		if (nr) {
 			pr_notice("Memory allocations:\n");
 			for (i = 0; i < nr; i++) {
 				struct codetag *ct = tags[i].ct;
 				struct alloc_tag *tag = ct_to_alloc_tag(ct);
 				struct alloc_tag_counters counter = alloc_tag_read(tag);

 				/* Same as alloc_tag_to_text() but w/o intermediate buffer */
 				if (ct->modname)
 					pr_notice("%12lli %8llu %s:%u [%s] func:%s\n",
 						  counter.bytes, counter.calls, ct->filename,
 						  ct->lineno, ct->modname, ct->function);
 				else
 					pr_notice("%12lli %8llu %s:%u func:%s\n",
 						  counter.bytes, counter.calls, ct->filename,
 						  ct->lineno, ct->function);
 			}
 		}
 	}
 #endif
 }
	// SPDX-License-Identifier: GPL-2.0-only
	/*
	* Generic show_mem() implementation
	*
	* Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
	*/

	#include <linux/blkdev.h>
	#include <linux/cma.h>
	#include <linux/cpuset.h>
	#include <linux/highmem.h>
	#include <linux/hugetlb.h>
	#include <linux/mm.h>
	#include <linux/mmzone.h>
	#include <linux/swap.h>
	#include <linux/vmstat.h>

	#include "internal.h"
	#include "swap.h"

	atomic_long_t _totalram_pages __read_mostly;
	EXPORT_SYMBOL(_totalram_pages);
	unsigned long totalreserve_pages __read_mostly;
	unsigned long totalcma_pages __read_mostly;

	static inline void show_node(struct zone *zone)
	{
	if (IS_ENABLED(CONFIG_NUMA))
	printk("Node %d ", zone_to_nid(zone));
	}

	long si_mem_available(void)
	{
	long available;
	unsigned long pagecache;
	unsigned long wmark_low = 0;
	unsigned long reclaimable;
	struct zone *zone;

	for_each_zone(zone)
	wmark_low += low_wmark_pages(zone);

	/*
	* Estimate the amount of memory available for userspace allocations,
	* without causing swapping or OOM.
	*/
	available = global_zone_page_state(NR_FREE_PAGES) - totalreserve_pages;

	/*
	* Not all the page cache can be freed, otherwise the system will
	* start swapping or thrashing. Assume at least half of the page
	* cache, or the low watermark worth of cache, needs to stay.
	*/
	pagecache = global_node_page_state(NR_ACTIVE_FILE) +
	global_node_page_state(NR_INACTIVE_FILE);
	pagecache -= min(pagecache / 2, wmark_low);
	available += pagecache;

	/*
	* Part of the reclaimable slab and other kernel memory consists of
	* items that are in use, and cannot be freed. Cap this estimate at the
	* low watermark.
	*/
	reclaimable = global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B) +
	global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE);
	reclaimable -= min(reclaimable / 2, wmark_low);
	available += reclaimable;

	if (available < 0)
	available = 0;
	return available;
	}
	EXPORT_SYMBOL_GPL(si_mem_available);

	void si_meminfo(struct sysinfo *val)
	{
	val->totalram = totalram_pages();
	val->sharedram = global_node_page_state(NR_SHMEM);
	val->freeram = global_zone_page_state(NR_FREE_PAGES);
	val->bufferram = nr_blockdev_pages();
	val->totalhigh = totalhigh_pages();
	val->freehigh = nr_free_highpages();
	val->mem_unit = PAGE_SIZE;
	}

	EXPORT_SYMBOL(si_meminfo);

	#ifdef CONFIG_NUMA
	void si_meminfo_node(struct sysinfo *val, int nid)
	{
	int zone_type; /* needs to be signed */
	unsigned long managed_pages = 0;
	unsigned long managed_highpages = 0;
	unsigned long free_highpages = 0;
	pg_data_t *pgdat = NODE_DATA(nid);

	for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++)
	managed_pages += zone_managed_pages(&pgdat->node_zones[zone_type]);
	val->totalram = managed_pages;
	val->sharedram = node_page_state(pgdat, NR_SHMEM);
	val->freeram = sum_zone_node_page_state(nid, NR_FREE_PAGES);
	#ifdef CONFIG_HIGHMEM
	for (zone_type = 0; zone_type < MAX_NR_ZONES; zone_type++) {
	struct zone *zone = &pgdat->node_zones[zone_type];

	if (is_highmem(zone)) {
	managed_highpages += zone_managed_pages(zone);
	free_highpages += zone_page_state(zone, NR_FREE_PAGES);
	}
	}
	val->totalhigh = managed_highpages;
	val->freehigh = free_highpages;
	#else
	val->totalhigh = managed_highpages;
	val->freehigh = free_highpages;
	#endif
	val->mem_unit = PAGE_SIZE;
	}
	#endif

	/*
	* Determine whether the node should be displayed or not, depending on whether
	* SHOW_MEM_FILTER_NODES was passed to show_free_areas().
	*/
	static bool show_mem_node_skip(unsigned int flags, int nid, nodemask_t *nodemask)
	{
	if (!(flags & SHOW_MEM_FILTER_NODES))
	return false;

	/*
	* no node mask - aka implicit memory numa policy. Do not bother with
	* the synchronization - read_mems_allowed_begin - because we do not
	* have to be precise here.
	*/
	if (!nodemask)
	nodemask = &cpuset_current_mems_allowed;

	return !node_isset(nid, *nodemask);
	}

	static void show_migration_types(unsigned char type)
	{
	static const char types[MIGRATE_TYPES] = {
	[MIGRATE_UNMOVABLE] = 'U',
	[MIGRATE_MOVABLE] = 'M',
	[MIGRATE_RECLAIMABLE] = 'E',
	[MIGRATE_HIGHATOMIC] = 'H',
	#ifdef CONFIG_CMA
	[MIGRATE_CMA] = 'C',
	#endif
	#ifdef CONFIG_MEMORY_ISOLATION
	[MIGRATE_ISOLATE] = 'I',
	#endif
	};
	char tmp[MIGRATE_TYPES + 1];
	char *p = tmp;
	int i;

	for (i = 0; i < MIGRATE_TYPES; i++) {
	if (type & (1 << i))
	*p++ = types[i];
	}

	*p = '\0';
	printk(KERN_CONT "(%s) ", tmp);
	}

	static bool node_has_managed_zones(pg_data_t *pgdat, int max_zone_idx)
	{
	int zone_idx;
	for (zone_idx = 0; zone_idx <= max_zone_idx; zone_idx++)
	if (zone_managed_pages(pgdat->node_zones + zone_idx))
	return true;
	return false;
	}

	/*
	* Show free area list (used inside shift_scroll-lock stuff)
	* We also calculate the percentage fragmentation. We do this by counting the
	* memory on each free list with the exception of the first item on the list.
	*
	* Bits in @filter:
	* SHOW_MEM_FILTER_NODES: suppress nodes that are not allowed by current's
	* cpuset.
	*/
	static void show_free_areas(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
	{
	unsigned long free_pcp = 0;
	int cpu, nid;
	struct zone *zone;
	pg_data_t *pgdat;

	for_each_populated_zone(zone) {
	if (zone_idx(zone) > max_zone_idx)
	continue;
	if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask))
	continue;

	for_each_online_cpu(cpu)
	free_pcp += per_cpu_ptr(zone->per_cpu_pageset, cpu)->count;
	}

	printk("active_anon:%lu inactive_anon:%lu isolated_anon:%lu\n"
	" active_file:%lu inactive_file:%lu isolated_file:%lu\n"
	" unevictable:%lu dirty:%lu writeback:%lu\n"
	" slab_reclaimable:%lu slab_unreclaimable:%lu\n"
	" mapped:%lu shmem:%lu pagetables:%lu\n"
	" sec_pagetables:%lu bounce:%lu\n"
	" kernel_misc_reclaimable:%lu\n"
	" free:%lu free_pcp:%lu free_cma:%lu\n",
	global_node_page_state(NR_ACTIVE_ANON),
	global_node_page_state(NR_INACTIVE_ANON),
	global_node_page_state(NR_ISOLATED_ANON),
	global_node_page_state(NR_ACTIVE_FILE),
	global_node_page_state(NR_INACTIVE_FILE),
	global_node_page_state(NR_ISOLATED_FILE),
	global_node_page_state(NR_UNEVICTABLE),
	global_node_page_state(NR_FILE_DIRTY),
	global_node_page_state(NR_WRITEBACK),
	global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B),
	global_node_page_state_pages(NR_SLAB_UNRECLAIMABLE_B),
	global_node_page_state(NR_FILE_MAPPED),
	global_node_page_state(NR_SHMEM),
	global_node_page_state(NR_PAGETABLE),
	global_node_page_state(NR_SECONDARY_PAGETABLE),
	global_zone_page_state(NR_BOUNCE),
	global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE),
	global_zone_page_state(NR_FREE_PAGES),
	free_pcp,
	global_zone_page_state(NR_FREE_CMA_PAGES));

	for_each_online_pgdat(pgdat) {
	if (show_mem_node_skip(filter, pgdat->node_id, nodemask))
	continue;
	if (!node_has_managed_zones(pgdat, max_zone_idx))
	continue;

	printk("Node %d"
	" active_anon:%lukB"
	" inactive_anon:%lukB"
	" active_file:%lukB"
	" inactive_file:%lukB"
	" unevictable:%lukB"
	" isolated(anon):%lukB"
	" isolated(file):%lukB"
	" mapped:%lukB"
	" dirty:%lukB"
	" writeback:%lukB"
	" shmem:%lukB"
	#ifdef CONFIG_TRANSPARENT_HUGEPAGE
	" shmem_thp:%lukB"
	" shmem_pmdmapped:%lukB"
	" anon_thp:%lukB"
	#endif
	" writeback_tmp:%lukB"
	" kernel_stack:%lukB"
	#ifdef CONFIG_SHADOW_CALL_STACK
	" shadow_call_stack:%lukB"
	#endif
	" pagetables:%lukB"
	" sec_pagetables:%lukB"
	" all_unreclaimable? %s"
	"\n",
	pgdat->node_id,
	K(node_page_state(pgdat, NR_ACTIVE_ANON)),
	K(node_page_state(pgdat, NR_INACTIVE_ANON)),
	K(node_page_state(pgdat, NR_ACTIVE_FILE)),
	K(node_page_state(pgdat, NR_INACTIVE_FILE)),
	K(node_page_state(pgdat, NR_UNEVICTABLE)),
	K(node_page_state(pgdat, NR_ISOLATED_ANON)),
	K(node_page_state(pgdat, NR_ISOLATED_FILE)),
	K(node_page_state(pgdat, NR_FILE_MAPPED)),
	K(node_page_state(pgdat, NR_FILE_DIRTY)),
	K(node_page_state(pgdat, NR_WRITEBACK)),
	K(node_page_state(pgdat, NR_SHMEM)),
	#ifdef CONFIG_TRANSPARENT_HUGEPAGE
	K(node_page_state(pgdat, NR_SHMEM_THPS)),
	K(node_page_state(pgdat, NR_SHMEM_PMDMAPPED)),
	K(node_page_state(pgdat, NR_ANON_THPS)),
	#endif
	K(node_page_state(pgdat, NR_WRITEBACK_TEMP)),
	node_page_state(pgdat, NR_KERNEL_STACK_KB),
	#ifdef CONFIG_SHADOW_CALL_STACK
	node_page_state(pgdat, NR_KERNEL_SCS_KB),
	#endif
	K(node_page_state(pgdat, NR_PAGETABLE)),
	K(node_page_state(pgdat, NR_SECONDARY_PAGETABLE)),
	pgdat->kswapd_failures >= MAX_RECLAIM_RETRIES ?
	"yes" : "no");
	}

	for_each_populated_zone(zone) {
	int i;

	if (zone_idx(zone) > max_zone_idx)
	continue;
	if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask))
	continue;

	free_pcp = 0;
	for_each_online_cpu(cpu)
	free_pcp += per_cpu_ptr(zone->per_cpu_pageset, cpu)->count;

	show_node(zone);
	printk(KERN_CONT
	"%s"
	" free:%lukB"
	" boost:%lukB"
	" min:%lukB"
	" low:%lukB"
	" high:%lukB"
	" reserved_highatomic:%luKB"
	" active_anon:%lukB"
	" inactive_anon:%lukB"
	" active_file:%lukB"
	" inactive_file:%lukB"
	" unevictable:%lukB"
	" writepending:%lukB"
	" present:%lukB"
	" managed:%lukB"
	" mlocked:%lukB"
	" bounce:%lukB"
	" free_pcp:%lukB"
	" local_pcp:%ukB"
	" free_cma:%lukB"
	"\n",
	zone->name,
	K(zone_page_state(zone, NR_FREE_PAGES)),
	K(zone->watermark_boost),
	K(min_wmark_pages(zone)),
	K(low_wmark_pages(zone)),
	K(high_wmark_pages(zone)),
	K(zone->nr_reserved_highatomic),
	K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)),
	K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)),
	K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)),
	K(zone_page_state(zone, NR_ZONE_INACTIVE_FILE)),
	K(zone_page_state(zone, NR_ZONE_UNEVICTABLE)),
	K(zone_page_state(zone, NR_ZONE_WRITE_PENDING)),
	K(zone->present_pages),
	K(zone_managed_pages(zone)),
	K(zone_page_state(zone, NR_MLOCK)),
	K(zone_page_state(zone, NR_BOUNCE)),
	K(free_pcp),
	K(this_cpu_read(zone->per_cpu_pageset->count)),
	K(zone_page_state(zone, NR_FREE_CMA_PAGES)));
	printk("lowmem_reserve[]:");
	for (i = 0; i < MAX_NR_ZONES; i++)
	printk(KERN_CONT " %ld", zone->lowmem_reserve[i]);
	printk(KERN_CONT "\n");
	}

	for_each_populated_zone(zone) {
	unsigned int order;
	unsigned long nr[NR_PAGE_ORDERS], flags, total = 0;
	unsigned char types[NR_PAGE_ORDERS];

	if (zone_idx(zone) > max_zone_idx)
	continue;
	if (show_mem_node_skip(filter, zone_to_nid(zone), nodemask))
	continue;
	show_node(zone);
	printk(KERN_CONT "%s: ", zone->name);

	spin_lock_irqsave(&zone->lock, flags);
	for (order = 0; order < NR_PAGE_ORDERS; order++) {
	struct free_area *area = &zone->free_area[order];
	int type;

	nr[order] = area->nr_free;
	total += nr[order] << order;

	types[order] = 0;
	for (type = 0; type < MIGRATE_TYPES; type++) {
	if (!free_area_empty(area, type))
	types[order] \|= 1 << type;
	}
	}
	spin_unlock_irqrestore(&zone->lock, flags);
	for (order = 0; order < NR_PAGE_ORDERS; order++) {
	printk(KERN_CONT "%lu*%lukB ",
	nr[order], K(1UL) << order);
	if (nr[order])
	show_migration_types(types[order]);
	}
	printk(KERN_CONT "= %lukB\n", K(total));
	}

	for_each_online_node(nid) {
	if (show_mem_node_skip(filter, nid, nodemask))
	continue;
	hugetlb_show_meminfo_node(nid);
	}

	printk("%ld total pagecache pages\n", global_node_page_state(NR_FILE_PAGES));

	show_swap_cache_info();
	}

	void __show_mem(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
	{
	unsigned long total = 0, reserved = 0, highmem = 0;
	struct zone *zone;

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

	for_each_populated_zone(zone) {

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

	if (is_highmem(zone))
	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_MEMORY_FAILURE
	printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
	#endif
	#ifdef CONFIG_MEM_ALLOC_PROFILING
	{
	struct codetag_bytes tags[10];
	size_t i, nr;

	nr = alloc_tag_top_users(tags, ARRAY_SIZE(tags), false);
	if (nr) {
	pr_notice("Memory allocations:\n");
	for (i = 0; i < nr; i++) {
	struct codetag *ct = tags[i].ct;
	struct alloc_tag *tag = ct_to_alloc_tag(ct);
	struct alloc_tag_counters counter = alloc_tag_read(tag);

	/* Same as alloc_tag_to_text() but w/o intermediate buffer */
	if (ct->modname)
	pr_notice("%12lli %8llu %s:%u [%s] func:%s\n",
	counter.bytes, counter.calls, ct->filename,
	ct->lineno, ct->modname, ct->function);
	else
	pr_notice("%12lli %8llu %s:%u func:%s\n",
	counter.bytes, counter.calls, ct->filename,
	ct->lineno, ct->function);
	}
	}
	}
	#endif
	}