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// 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/cma.h>
#include <linux/seq_buf.h>
#include "slab.h"
void __show_mem(unsigned int filter, nodemask_t *nodemask, int max_zone_idx)
{
pg_data_t *pgdat;
unsigned long total = 0, reserved = 0, highmem = 0;
char *buf;
printk("Mem-Info:\n");
__show_free_areas(filter, nodemask, max_zone_idx);
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_MEMORY_FAILURE
printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
#endif
buf = kmalloc(4096, GFP_ATOMIC);
if (buf) {
struct seq_buf s;
printk("Unreclaimable slab info:\n");
seq_buf_init(&s, buf, 4096);
dump_unreclaimable_slab(&s);
seq_buf_terminate(&s);
printk("%s", buf);
printk("Shrinkers:\n");
seq_buf_init(&s, buf, 4096);
shrinkers_to_text(&s);
seq_buf_terminate(&s);
printk("%s", buf);
kfree(buf);
}
}
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