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 show_mem(unsigned int filter)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 } 50