website-struct

Struct: hstate

Status

Regular

• In 4.4: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[64];
      unsigned int nr_huge_pages_node[64];
      unsigned int free_huge_pages_node[64];
      unsigned int surplus_huge_pages_node[64];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 4.8: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[64];
      unsigned int nr_huge_pages_node[64];
      unsigned int free_huge_pages_node[64];
      unsigned int surplus_huge_pages_node[64];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 4.10: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 4.13: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 4.15: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 4.18: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 5.0: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 5.3: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 5.4: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In 5.8: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files_dfl[7];
      struct cftype cgroup_files_legacy[9];
      char name[32];
  };
  

• In 5.11: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files_dfl[7];
      struct cftype cgroup_files_legacy[9];
      char name[32];
  };
  

• In 5.13: ✅

  struct hstate {
      struct mutex resize_lock;
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files_dfl[7];
      struct cftype cgroup_files_legacy[9];
      char name[32];
  };
  

• In 5.15: ✅

  struct hstate {
      struct mutex resize_lock;
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      unsigned int nr_free_vmemmap_pages;
      struct cftype cgroup_files_dfl[7];
      struct cftype cgroup_files_legacy[9];
      char name[32];
  };
  

• In 5.19: ✅

  struct hstate {
      struct mutex resize_lock;
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      unsigned int demote_order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int max_huge_pages_node[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      unsigned int optimize_vmemmap_pages;
      struct cftype cgroup_files_dfl[8];
      struct cftype cgroup_files_legacy[10];
      char name[32];
  };
  

• In 6.2: ✅

  struct hstate {
      struct mutex resize_lock;
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      unsigned int demote_order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int max_huge_pages_node[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files_dfl[8];
      struct cftype cgroup_files_legacy[10];
      char name[32];
  };
  

• In 6.5: ✅

  struct hstate {
      struct mutex resize_lock;
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      unsigned int demote_order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int max_huge_pages_node[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files_dfl[8];
      struct cftype cgroup_files_legacy[10];
      char name[32];
  };
  

• In 6.8: ✅

  struct hstate {
      struct mutex resize_lock;
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      unsigned int demote_order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int max_huge_pages_node[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files_dfl[8];
      struct cftype cgroup_files_legacy[10];
      char name[32];
  };
  

Arch

• In arm64: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[64];
      unsigned int nr_huge_pages_node[64];
      unsigned int free_huge_pages_node[64];
      unsigned int surplus_huge_pages_node[64];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In armhf: ✅

  struct hstate {
  };
  

• In ppc64el: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[256];
      unsigned int nr_huge_pages_node[256];
      unsigned int free_huge_pages_node[256];
      unsigned int surplus_huge_pages_node[256];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In riscv64: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1];
      unsigned int nr_huge_pages_node[1];
      unsigned int free_huge_pages_node[1];
      unsigned int surplus_huge_pages_node[1];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

Flavor

• In aws: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In azure: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In gcp: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

• In lowlatency: ✅

  struct hstate {
      int next_nid_to_alloc;
      int next_nid_to_free;
      unsigned int order;
      long unsigned int mask;
      long unsigned int max_huge_pages;
      long unsigned int nr_huge_pages;
      long unsigned int free_huge_pages;
      long unsigned int resv_huge_pages;
      long unsigned int surplus_huge_pages;
      long unsigned int nr_overcommit_huge_pages;
      struct list_head hugepage_activelist;
      struct list_head hugepage_freelists[1024];
      unsigned int nr_huge_pages_node[1024];
      unsigned int free_huge_pages_node[1024];
      unsigned int surplus_huge_pages_node[1024];
      struct cftype cgroup_files[5];
      char name[32];
  };
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• Changed between 4.8 and 4.10 ⚠️

  • Field type changed. struct list_head hugepage_freelists[64] ➡️ struct list_head hugepage_freelists[1024]
  • Field type changed. unsigned int nr_huge_pages_node[64] ➡️ unsigned int nr_huge_pages_node[1024]
  • Field type changed. unsigned int free_huge_pages_node[64] ➡️ unsigned int free_huge_pages_node[1024]
  • Field type changed. unsigned int surplus_huge_pages_node[64] ➡️ unsigned int surplus_huge_pages_node[1024]
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅
• Changed between 5.4 and 5.8 ⚠️

  • Field added. struct cftype cgroup_files_dfl[7]
  • Field added. struct cftype cgroup_files_legacy[9]
  • Field removed. struct cftype cgroup_files[5]
• No changes between 5.8 and 5.11 ✅
• Changed between 5.11 and 5.13 ⚠️

  • Field added. struct mutex resize_lock
• Changed between 5.13 and 5.15 ⚠️

  • Field added. unsigned int nr_free_vmemmap_pages
• Changed between 5.15 and 5.19 ⚠️

  • Field added. unsigned int demote_order
  • Field added. unsigned int max_huge_pages_node[1024]
  • Field added. unsigned int optimize_vmemmap_pages
  • Field removed. unsigned int nr_free_vmemmap_pages
  • Field type changed. struct cftype cgroup_files_dfl[7] ➡️ struct cftype cgroup_files_dfl[8]
  • Field type changed. struct cftype cgroup_files_legacy[9] ➡️ struct cftype cgroup_files_legacy[10]
• Changed between 5.19 and 6.2 ⚠️

  • Field removed. unsigned int optimize_vmemmap_pages
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• Changed between amd64 and arm64 ⚠️

  • Field type changed. struct list_head hugepage_freelists[1024] ➡️ struct list_head hugepage_freelists[64]
  • Field type changed. unsigned int nr_huge_pages_node[1024] ➡️ unsigned int nr_huge_pages_node[64]
  • Field type changed. unsigned int free_huge_pages_node[1024] ➡️ unsigned int free_huge_pages_node[64]
  • Field type changed. unsigned int surplus_huge_pages_node[1024] ➡️ unsigned int surplus_huge_pages_node[64]
• Changed between amd64 and armhf ⚠️

  • Field removed. int next_nid_to_alloc
  • Field removed. int next_nid_to_free
  • Field removed. unsigned int order
  • Field removed. long unsigned int mask
  • Field removed. long unsigned int max_huge_pages
  • Field removed. long unsigned int nr_huge_pages
  • Field removed. long unsigned int free_huge_pages
  • Field removed. long unsigned int resv_huge_pages
  • Field removed. long unsigned int surplus_huge_pages
  • Field removed. long unsigned int nr_overcommit_huge_pages
  • Field removed. struct list_head hugepage_activelist
  • Field removed. struct list_head hugepage_freelists[1024]
  • Field removed. unsigned int nr_huge_pages_node[1024]
  • Field removed. unsigned int free_huge_pages_node[1024]
  • Field removed. unsigned int surplus_huge_pages_node[1024]
  • Field removed. struct cftype cgroup_files[5]
  • Field removed. char name[32]
• Changed between amd64 and ppc64el ⚠️

  • Field type changed. struct list_head hugepage_freelists[1024] ➡️ struct list_head hugepage_freelists[256]
  • Field type changed. unsigned int nr_huge_pages_node[1024] ➡️ unsigned int nr_huge_pages_node[256]
  • Field type changed. unsigned int free_huge_pages_node[1024] ➡️ unsigned int free_huge_pages_node[256]
  • Field type changed. unsigned int surplus_huge_pages_node[1024] ➡️ unsigned int surplus_huge_pages_node[256]
• Changed between amd64 and riscv64 ⚠️

  • Field type changed. struct list_head hugepage_freelists[1024] ➡️ struct list_head hugepage_freelists[1]
  • Field type changed. unsigned int nr_huge_pages_node[1024] ➡️ unsigned int nr_huge_pages_node[1]
  • Field type changed. unsigned int free_huge_pages_node[1024] ➡️ unsigned int free_huge_pages_node[1]
  • Field type changed. unsigned int surplus_huge_pages_node[1024] ➡️ unsigned int surplus_huge_pages_node[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 ✅