/* * Generic show_mem() implementation * * Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de> * All code subject to the GPL version 2. */ #include <linux/mm.h>#include <linux/nmi.h>#include <linux/quicklist.h> void show_mem(unsigned int filter){	pg_data_t *pgdat;	unsigned long total = 0, reserved = 0, highmem = 0; 	printk("Mem-Info:\n");	show_free_areas(filter); 	if (filter & SHOW_MEM_FILTER_PAGE_COUNT)		return; 	for_each_online_pgdat(pgdat) {		unsigned long flags;		int zoneid; 		pgdat_resize_lock(pgdat, &flags);		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; 			if (is_highmem_idx(zoneid))				highmem += zone->present_pages;		}		pgdat_resize_unlock(pgdat, &flags);	} 	printk("%lu pages RAM\n", total);	printk("%lu pages HighMem/MovableOnly\n", highmem);	printk("%lu pages reserved\n", reserved);#ifdef CONFIG_QUICKLIST	printk("%lu pages in pagetable cache\n",		quicklist_total_size());#endif}