Linux物理内存数据结构

Linux 物理内存管理数据结构图

struct pglist_data   contig_page_data;

struct zone node_zones[MAX_NR_ZONES];

unsigned long watermark[NR_WMARK];

long lowmem_reserve[MAX_NR_ZONES];

struct per_cpu_pageset __percpu *pageset;

struct per_cpu_pages pcp;

int count;\t\t/* number of pages in the list */int high;span class=\"Apple-tab-span\" style=\"white-space:pre\

struct list_head lists[MIGRATE_PCPTYPES];

s8 stat_threshold;

s8 vm_stat_diff[NR_VM_ZONE_STAT_ITEMS];

struct free_area\tfree_area[MAX_ORDER];

struct list_head\tfree_list[MIGRATE_TYPES];

struct zonelist node_zonelists[MAX_ZONELISTS];

struct zoneref _zonerefs[MAX_ZONES_PER_ZONELIST + 1];

struct zone *zone;\t/* Pointer to actual zone */

int zone_idx;\t\t/* zone_idx(zoneref->zone) */

struct page *node_mem_map;

struct bootmem_data *bdata;

\twait_queue_head_t kswapd_wait;\twait_queue_head_t pfmemalloc_wait;\tstruct task_struct *kswapd;\t/* Protected by\t\t\t\t\t   mem_hotplug_begin/end() */\tint kswapd_order;\tenum zone_type kswapd_classzone_idx;

\tstruct per_cpu_nodestat __percpu *per_cpu_nodestats;\tatomic_long_t\t\tvm_stat[NR_VM_NODE_STAT_ITEMS];

s8 vm_node_stat_diff[NR_VM_NODE_STAT_ITEMS];

struct page *mem_map;

page结构体建议直接看源代码，太乱了，源代码在linux/mm_types.h 

bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;

unsigned long node_min_pfn;

unsigned long node_low_pfn;

void *node_bootmem_map;

unsigned long last_end_off;

unsigned long hint_idx;

struct list_head list;