2024-09-09 08:52:07 +00:00
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/*
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* Generic show_mem() implementation
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*
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* Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
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* All code subject to the GPL version 2.
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*/
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#include <linux/mm.h>
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#include <linux/nmi.h>
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#include <linux/quicklist.h>
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void show_mem(unsigned int filter)
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{
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pg_data_t *pgdat;
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2024-09-09 08:57:42 +00:00
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unsigned long total = 0, reserved = 0, highmem = 0;
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2024-09-09 08:52:07 +00:00
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printk("Mem-Info:\n");
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show_free_areas(filter);
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for_each_online_pgdat(pgdat) {
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2024-09-09 08:57:42 +00:00
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unsigned long flags;
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int zoneid;
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2024-09-09 08:52:07 +00:00
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pgdat_resize_lock(pgdat, &flags);
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2024-09-09 08:57:42 +00:00
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for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
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struct zone *zone = &pgdat->node_zones[zoneid];
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if (!populated_zone(zone))
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2024-09-09 08:52:07 +00:00
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continue;
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2024-09-09 08:57:42 +00:00
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total += zone->present_pages;
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reserved += zone->present_pages - zone->managed_pages;
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2024-09-09 08:52:07 +00:00
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2024-09-09 08:57:42 +00:00
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if (is_highmem_idx(zoneid))
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highmem += zone->present_pages;
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2024-09-09 08:52:07 +00:00
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}
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pgdat_resize_unlock(pgdat, &flags);
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}
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printk("%lu pages RAM\n", total);
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2024-09-09 08:57:42 +00:00
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printk("%lu pages HighMem/MovableOnly\n", highmem);
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2024-09-09 08:52:07 +00:00
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printk("%lu pages reserved\n", reserved);
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#ifdef CONFIG_QUICKLIST
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printk("%lu pages in pagetable cache\n",
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quicklist_total_size());
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#endif
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2024-09-09 08:57:42 +00:00
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#ifdef CONFIG_MEMORY_FAILURE
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printk("%lu pages hwpoisoned\n", atomic_long_read(&num_poisoned_pages));
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#endif
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2024-09-09 08:52:07 +00:00
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}
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