website-struct

Struct: pglist_data

Status

Regular

• In 4.4: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_max_order;
      enum zone_type classzone_idx;
      spinlock_t numabalancing_migrate_lock;
      long unsigned int numabalancing_migrate_next_window;
      long unsigned int numabalancing_migrate_nr_pages;
  };
  

• In 4.8: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      spinlock_t numabalancing_migrate_lock;
      long unsigned int numabalancing_migrate_next_window;
      long unsigned int numabalancing_migrate_nr_pages;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      unsigned int inactive_ratio;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[26];
  };
  

• In 4.10: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      spinlock_t numabalancing_migrate_lock;
      long unsigned int numabalancing_migrate_next_window;
      long unsigned int numabalancing_migrate_nr_pages;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      unsigned int inactive_ratio;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[26];
  };
  

• In 4.13: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      spinlock_t numabalancing_migrate_lock;
      long unsigned int numabalancing_migrate_next_window;
      long unsigned int numabalancing_migrate_nr_pages;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      unsigned int inactive_ratio;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[27];
  };
  

• In 4.15: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      spinlock_t numabalancing_migrate_lock;
      long unsigned int numabalancing_migrate_next_window;
      long unsigned int numabalancing_migrate_nr_pages;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[27];
  };
  

• In 4.18: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      spinlock_t numabalancing_migrate_lock;
      long unsigned int numabalancing_migrate_next_window;
      long unsigned int numabalancing_migrate_nr_pages;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[28];
  };
  

• In 5.0: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[30];
  };
  

• In 5.3: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      spinlock_t split_queue_lock;
      struct list_head split_queue;
      long unsigned int split_queue_len;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[30];
  };
  

• In 5.4: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In 5.8: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[33];
  };
  

• In 5.11: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      struct deferred_split deferred_split_queue;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[38];
  };
  

• In 5.13: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      struct deferred_split deferred_split_queue;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[39];
  };
  

• In 5.15: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      bool proactive_compact_trigger;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      struct deferred_split deferred_split_queue;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[39];
  };
  

• In 5.19: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      wait_queue_head_t reclaim_wait[4];
      atomic_t nr_writeback_throttled;
      long unsigned int nr_reclaim_start;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      bool proactive_compact_trigger;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      struct deferred_split deferred_split_queue;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[41];
  };
  

• In 6.2: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      wait_queue_head_t reclaim_wait[4];
      atomic_t nr_writeback_throttled;
      long unsigned int nr_reclaim_start;
      struct mutex kswapd_lock;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      bool proactive_compact_trigger;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct cacheline_padding _pad1_;
      struct deferred_split deferred_split_queue;
      unsigned int nbp_rl_start;
      long unsigned int nbp_rl_nr_cand;
      unsigned int nbp_threshold;
      unsigned int nbp_th_start;
      long unsigned int nbp_th_nr_cand;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct lru_gen_mm_walk mm_walk;
      struct cacheline_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[43];
      struct memory_tier *memtier;
  };
  

• In 6.5: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      wait_queue_head_t reclaim_wait[4];
      atomic_t nr_writeback_throttled;
      long unsigned int nr_reclaim_start;
      struct mutex kswapd_lock;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      bool proactive_compact_trigger;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct cacheline_padding _pad1_;
      struct deferred_split deferred_split_queue;
      unsigned int nbp_rl_start;
      long unsigned int nbp_rl_nr_cand;
      unsigned int nbp_threshold;
      unsigned int nbp_th_start;
      long unsigned int nbp_th_nr_cand;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct lru_gen_mm_walk mm_walk;
      struct lru_gen_memcg memcg_lru;
      struct cacheline_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[43];
      struct memory_tier *memtier;
      struct memory_failure_stats mf_stats;
  };
  

• In 6.8: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      wait_queue_head_t reclaim_wait[4];
      atomic_t nr_writeback_throttled;
      long unsigned int nr_reclaim_start;
      struct mutex kswapd_lock;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_highest_zoneidx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_highest_zoneidx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      bool proactive_compact_trigger;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct cacheline_padding _pad1_;
      struct deferred_split deferred_split_queue;
      unsigned int nbp_rl_start;
      long unsigned int nbp_rl_nr_cand;
      unsigned int nbp_threshold;
      unsigned int nbp_th_start;
      long unsigned int nbp_th_nr_cand;
      struct lruvec __lruvec;
      long unsigned int flags;
      struct lru_gen_mm_walk mm_walk;
      struct lru_gen_memcg memcg_lru;
      struct cacheline_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[46];
      struct memory_tier *memtier;
      struct memory_failure_stats mf_stats;
  };
  

Arch

• In arm64: ✅

  struct pglist_data {
      struct zone node_zones[3];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In armhf: ✅

  struct pglist_data {
      struct zone node_zones[3];
      struct zonelist node_zonelists[1];
      int nr_zones;
      struct page *node_mem_map;
      struct page_ext *node_page_ext;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In ppc64el: ✅

  struct pglist_data {
      struct zone node_zones[3];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In riscv64: ✅

  struct pglist_data {
      struct zone node_zones[3];
      struct zonelist node_zonelists[1];
      int nr_zones;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

Flavor

• In aws: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In azure: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In gcp: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

• In lowlatency: ✅

  struct pglist_data {
      struct zone node_zones[5];
      struct zonelist node_zonelists[2];
      int nr_zones;
      spinlock_t node_size_lock;
      long unsigned int node_start_pfn;
      long unsigned int node_present_pages;
      long unsigned int node_spanned_pages;
      int node_id;
      wait_queue_head_t kswapd_wait;
      wait_queue_head_t pfmemalloc_wait;
      struct task_struct *kswapd;
      int kswapd_order;
      enum zone_type kswapd_classzone_idx;
      int kswapd_failures;
      int kcompactd_max_order;
      enum zone_type kcompactd_classzone_idx;
      wait_queue_head_t kcompactd_wait;
      struct task_struct *kcompactd;
      long unsigned int totalreserve_pages;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      struct zone_padding _pad1_;
      spinlock_t lru_lock;
      struct deferred_split deferred_split_queue;
      struct lruvec lruvec;
      long unsigned int flags;
      struct zone_padding _pad2_;
      struct per_cpu_nodestat *per_cpu_nodestats;
      atomic_long_t vm_stat[32];
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. int kswapd_order
  • Field added. enum zone_type kswapd_classzone_idx
  • Field added. int kcompactd_max_order
  • Field added. enum zone_type kcompactd_classzone_idx
  • Field added. wait_queue_head_t kcompactd_wait
  • Field added. struct task_struct *kcompactd
  • Field added. long unsigned int totalreserve_pages
  • Field added. long unsigned int min_unmapped_pages
  • Field added. long unsigned int min_slab_pages
  • Field added. struct zone_padding _pad1_
  • Field added. spinlock_t lru_lock
  • Field added. spinlock_t split_queue_lock
  • Field added. struct list_head split_queue
  • Field added. long unsigned int split_queue_len
  • Field added. struct lruvec lruvec
  • Field added. unsigned int inactive_ratio
  • Field added. long unsigned int flags
  • Field added. struct zone_padding _pad2_
  • Field added. struct per_cpu_nodestat *per_cpu_nodestats
  • Field added. atomic_long_t vm_stat[26]
  • Field removed. int kswapd_max_order
  • Field removed. enum zone_type classzone_idx
• No changes between 4.8 and 4.10 ✅
• Changed between 4.10 and 4.13 ⚠️

  • Field added. int kswapd_failures
  • Field type changed. atomic_long_t vm_stat[26] ➡️ atomic_long_t vm_stat[27]
• Changed between 4.13 and 4.15 ⚠️

  • Field removed. unsigned int inactive_ratio
• Changed between 4.15 and 4.18 ⚠️

  • Field type changed. atomic_long_t vm_stat[27] ➡️ atomic_long_t vm_stat[28]
• Changed between 4.18 and 5.0 ⚠️

  • Field removed. spinlock_t numabalancing_migrate_lock
  • Field removed. long unsigned int numabalancing_migrate_next_window
  • Field removed. long unsigned int numabalancing_migrate_nr_pages
  • Field type changed. atomic_long_t vm_stat[28] ➡️ atomic_long_t vm_stat[30]
• No changes between 5.0 and 5.3 ✅
• Changed between 5.3 and 5.4 ⚠️

  • Field added. struct deferred_split deferred_split_queue
  • Field removed. spinlock_t split_queue_lock
  • Field removed. struct list_head split_queue
  • Field removed. long unsigned int split_queue_len
  • Field type changed. atomic_long_t vm_stat[30] ➡️ atomic_long_t vm_stat[32]
• Changed between 5.4 and 5.8 ⚠️

  • Field added. enum zone_type kswapd_highest_zoneidx
  • Field added. enum zone_type kcompactd_highest_zoneidx
  • Field added. struct lruvec __lruvec
  • Field removed. enum zone_type kswapd_classzone_idx
  • Field removed. enum zone_type kcompactd_classzone_idx
  • Field removed. struct lruvec lruvec
  • Field type changed. atomic_long_t vm_stat[32] ➡️ atomic_long_t vm_stat[33]
• Changed between 5.8 and 5.11 ⚠️

  • Field removed. spinlock_t lru_lock
  • Field type changed. atomic_long_t vm_stat[33] ➡️ atomic_long_t vm_stat[38]
• Changed between 5.11 and 5.13 ⚠️

  • Field type changed. atomic_long_t vm_stat[38] ➡️ atomic_long_t vm_stat[39]
• Changed between 5.13 and 5.15 ⚠️

  • Field added. bool proactive_compact_trigger
• Changed between 5.15 and 5.19 ⚠️

  • Field added. wait_queue_head_t reclaim_wait[4]
  • Field added. atomic_t nr_writeback_throttled
  • Field added. long unsigned int nr_reclaim_start
  • Field type changed. atomic_long_t vm_stat[39] ➡️ atomic_long_t vm_stat[41]
• Changed between 5.19 and 6.2 ⚠️

  • Field added. struct mutex kswapd_lock
  • Field added. unsigned int nbp_rl_start
  • Field added. long unsigned int nbp_rl_nr_cand
  • Field added. unsigned int nbp_threshold
  • Field added. unsigned int nbp_th_start
  • Field added. long unsigned int nbp_th_nr_cand
  • Field added. struct lru_gen_mm_walk mm_walk
  • Field added. struct memory_tier *memtier
  • Field type changed. struct zone_padding _pad1_ ➡️ struct cacheline_padding _pad1_
  • Field type changed. struct zone_padding _pad2_ ➡️ struct cacheline_padding _pad2_
  • Field type changed. atomic_long_t vm_stat[41] ➡️ atomic_long_t vm_stat[43]
• Changed between 6.2 and 6.5 ⚠️

  • Field added. struct lru_gen_memcg memcg_lru
  • Field added. struct memory_failure_stats mf_stats
• Changed between 6.5 and 6.8 ⚠️

  • Field type changed. atomic_long_t vm_stat[43] ➡️ atomic_long_t vm_stat[46]

Arch

• Changed between amd64 and arm64 ⚠️

  • Field type changed. struct zone node_zones[5] ➡️ struct zone node_zones[3]
• Changed between amd64 and armhf ⚠️

  • Field added. struct page *node_mem_map
  • Field added. struct page_ext *node_page_ext
  • Field removed. spinlock_t node_size_lock
  • Field removed. long unsigned int min_unmapped_pages
  • Field removed. long unsigned int min_slab_pages
  • Field removed. struct deferred_split deferred_split_queue
  • Field type changed. struct zone node_zones[5] ➡️ struct zone node_zones[3]
  • Field type changed. struct zonelist node_zonelists[2] ➡️ struct zonelist node_zonelists[1]
• Changed between amd64 and ppc64el ⚠️

  • Field type changed. struct zone node_zones[5] ➡️ struct zone node_zones[3]
• Changed between amd64 and riscv64 ⚠️

  • Field removed. spinlock_t node_size_lock
  • Field removed. long unsigned int min_unmapped_pages
  • Field removed. long unsigned int min_slab_pages
  • Field removed. struct deferred_split deferred_split_queue
  • Field type changed. struct zone node_zones[5] ➡️ struct zone node_zones[3]
  • Field type changed. struct zonelist node_zonelists[2] ➡️ struct zonelist node_zonelists[1]

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅