website-struct

Struct: zone

Status

Regular

• In 4.4: ✅

  struct zone {
      long unsigned int watermark[3];
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      unsigned int inactive_ratio;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int dirty_balance_reserve;
      long unsigned int min_unmapped_pages;
      long unsigned int min_slab_pages;
      long unsigned int zone_start_pfn;
      long unsigned int managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      wait_queue_head_t *wait_table;
      long unsigned int wait_table_hash_nr_entries;
      long unsigned int wait_table_bits;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      spinlock_t lru_lock;
      struct lruvec lruvec;
      atomic_long_t inactive_age;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[39];
  };
  

• In 4.8: ✅

  struct zone {
      long unsigned int watermark[3];
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      long unsigned int managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      wait_queue_head_t *wait_table;
      long unsigned int wait_table_hash_nr_entries;
      long unsigned int wait_table_bits;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[21];
  };
  

• In 4.10: ✅

  struct zone {
      long unsigned int watermark[3];
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      long unsigned int managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[21];
  };
  

• In 4.13: ✅

  struct zone {
      long unsigned int watermark[3];
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      long unsigned int managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[19];
  };
  

• In 4.15: ✅

  struct zone {
      long unsigned int watermark[3];
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      long unsigned int managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 4.18: ✅

  struct zone {
      long unsigned int watermark[3];
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      long unsigned int managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.0: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.3: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.4: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.8: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.11: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      int pageset_high;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[11];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.13: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      int pageset_high;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[11];
      atomic_long_t vm_numa_stat[6];
  };
  

• In 5.15: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pages *per_cpu_pageset;
      struct per_cpu_zonestat *per_cpu_zonestats;
      int pageset_high;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      long unsigned int present_early_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[11];
      atomic_long_t vm_numa_event[6];
  };
  

• In 5.19: ✅

  struct zone {
      long unsigned int _watermark[4];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pages *per_cpu_pageset;
      struct per_cpu_zonestat *per_cpu_zonestats;
      int pageset_high;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      long unsigned int present_early_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[11];
      atomic_long_t vm_numa_event[6];
  };
  

• In 6.2: ✅

  struct zone {
      long unsigned int _watermark[4];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pages *per_cpu_pageset;
      struct per_cpu_zonestat *per_cpu_zonestats;
      int pageset_high;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      long unsigned int present_early_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct cacheline_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct cacheline_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct cacheline_padding _pad3_;
      atomic_long_t vm_stat[11];
      atomic_long_t vm_numa_event[6];
  };
  

• In 6.5: ✅

  struct zone {
      long unsigned int _watermark[4];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pages *per_cpu_pageset;
      struct per_cpu_zonestat *per_cpu_zonestats;
      int pageset_high;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      long unsigned int present_early_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct cacheline_padding _pad1_;
      struct free_area free_area[11];
      struct list_head unaccepted_pages;
      long unsigned int flags;
      spinlock_t lock;
      struct cacheline_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct cacheline_padding _pad3_;
      atomic_long_t vm_stat[12];
      atomic_long_t vm_numa_event[6];
  };
  

• In 6.8: ✅

  struct zone {
      long unsigned int _watermark[4];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pages *per_cpu_pageset;
      struct per_cpu_zonestat *per_cpu_zonestats;
      int pageset_high_min;
      int pageset_high_max;
      int pageset_batch;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      long unsigned int present_early_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct cacheline_padding _pad1_;
      struct free_area free_area[11];
      struct list_head unaccepted_pages;
      long unsigned int flags;
      spinlock_t lock;
      struct cacheline_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct cacheline_padding _pad3_;
      atomic_long_t vm_stat[12];
      atomic_long_t vm_numa_event[6];
  };
  

Arch

• In arm64: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[3];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[13];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In armhf: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[3];
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int *pageblock_flags;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[12];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[0];
  };
  

• In ppc64el: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[3];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[9];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In riscv64: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[3];
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[0];
  };
  

Flavor

• In aws: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In azure: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In gcp: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

• In lowlatency: ✅

  struct zone {
      long unsigned int _watermark[3];
      long unsigned int watermark_boost;
      long unsigned int nr_reserved_highatomic;
      long int lowmem_reserve[5];
      int node;
      struct pglist_data *zone_pgdat;
      struct per_cpu_pageset *pageset;
      long unsigned int zone_start_pfn;
      atomic_long_t managed_pages;
      long unsigned int spanned_pages;
      long unsigned int present_pages;
      const char *name;
      long unsigned int nr_isolate_pageblock;
      seqlock_t span_seqlock;
      int initialized;
      struct zone_padding _pad1_;
      struct free_area free_area[11];
      long unsigned int flags;
      spinlock_t lock;
      struct zone_padding _pad2_;
      long unsigned int percpu_drift_mark;
      long unsigned int compact_cached_free_pfn;
      long unsigned int compact_cached_migrate_pfn[2];
      long unsigned int compact_init_migrate_pfn;
      long unsigned int compact_init_free_pfn;
      unsigned int compact_considered;
      unsigned int compact_defer_shift;
      int compact_order_failed;
      bool compact_blockskip_flush;
      bool contiguous;
      struct zone_padding _pad3_;
      atomic_long_t vm_stat[13];
      atomic_long_t vm_numa_stat[6];
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. bool contiguous
  • Field removed. unsigned int inactive_ratio
  • Field removed. long unsigned int dirty_balance_reserve
  • Field removed. long unsigned int min_unmapped_pages
  • Field removed. long unsigned int min_slab_pages
  • Field removed. spinlock_t lru_lock
  • Field removed. struct lruvec lruvec
  • Field removed. atomic_long_t inactive_age
  • Field type changed. atomic_long_t vm_stat[39] ➡️ atomic_long_t vm_stat[21]
• Changed between 4.8 and 4.10 ⚠️

  • Field added. int initialized
  • Field removed. wait_queue_head_t *wait_table
  • Field removed. long unsigned int wait_table_hash_nr_entries
  • Field removed. long unsigned int wait_table_bits
• Changed between 4.10 and 4.13 ⚠️

  • Field type changed. atomic_long_t vm_stat[21] ➡️ atomic_long_t vm_stat[19]
• Changed between 4.13 and 4.15 ⚠️

  • Field added. atomic_long_t vm_numa_stat[6]
  • Field type changed. atomic_long_t vm_stat[19] ➡️ atomic_long_t vm_stat[13]
• No changes between 4.15 and 4.18 ✅
• Changed between 4.18 and 5.0 ⚠️

  • Field added. long unsigned int _watermark[3]
  • Field added. long unsigned int watermark_boost
  • Field removed. long unsigned int watermark[3]
  • Field type changed. long unsigned int managed_pages ➡️ atomic_long_t managed_pages
• Changed between 5.0 and 5.3 ⚠️

  • Field added. long unsigned int compact_init_migrate_pfn
  • Field added. long unsigned int compact_init_free_pfn
• No changes between 5.3 and 5.4 ✅
• No changes between 5.4 and 5.8 ✅
• Changed between 5.8 and 5.11 ⚠️

  • Field added. int pageset_high
  • Field added. int pageset_batch
  • Field type changed. atomic_long_t vm_stat[13] ➡️ atomic_long_t vm_stat[11]
• No changes between 5.11 and 5.13 ✅
• Changed between 5.13 and 5.15 ⚠️

  • Field added. struct per_cpu_pages *per_cpu_pageset
  • Field added. struct per_cpu_zonestat *per_cpu_zonestats
  • Field added. long unsigned int present_early_pages
  • Field added. atomic_long_t vm_numa_event[6]
  • Field removed. struct per_cpu_pageset *pageset
  • Field removed. atomic_long_t vm_numa_stat[6]
• Changed between 5.15 and 5.19 ⚠️

  • Field type changed. long unsigned int _watermark[3] ➡️ long unsigned int _watermark[4]
• Changed between 5.19 and 6.2 ⚠️

  • 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. struct zone_padding _pad3_ ➡️ struct cacheline_padding _pad3_
• Changed between 6.2 and 6.5 ⚠️

  • Field added. struct list_head unaccepted_pages
  • Field type changed. atomic_long_t vm_stat[11] ➡️ atomic_long_t vm_stat[12]
• Changed between 6.5 and 6.8 ⚠️

  • Field added. int pageset_high_min
  • Field added. int pageset_high_max
  • Field removed. int pageset_high

Arch

• Changed between amd64 and arm64 ⚠️

  • Field type changed. long int lowmem_reserve[5] ➡️ long int lowmem_reserve[3]
  • Field type changed. struct free_area free_area[11] ➡️ struct free_area free_area[13]
• Changed between amd64 and armhf ⚠️

  • Field added. long unsigned int *pageblock_flags
  • Field removed. int node
  • Field removed. seqlock_t span_seqlock
  • Field type changed. long int lowmem_reserve[5] ➡️ long int lowmem_reserve[3]
  • Field type changed. struct free_area free_area[11] ➡️ struct free_area free_area[12]
  • Field type changed. atomic_long_t vm_numa_stat[6] ➡️ atomic_long_t vm_numa_stat[0]
• Changed between amd64 and ppc64el ⚠️

  • Field type changed. long int lowmem_reserve[5] ➡️ long int lowmem_reserve[3]
  • Field type changed. struct free_area free_area[11] ➡️ struct free_area free_area[9]
• Changed between amd64 and riscv64 ⚠️

  • Field removed. int node
  • Field removed. seqlock_t span_seqlock
  • Field type changed. long int lowmem_reserve[5] ➡️ long int lowmem_reserve[3]
  • Field type changed. atomic_long_t vm_numa_stat[6] ➡️ atomic_long_t vm_numa_stat[0]

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 ✅