website-struct

Struct: `folio`

Status

Regular

In 4.4: Absent ⚠️
In 4.8: Absent ⚠️
In 4.10: Absent ⚠️
In 4.13: Absent ⚠️
In 4.15: Absent ⚠️
In 4.18: Absent ⚠️
In 5.0: Absent ⚠️
In 5.3: Absent ⚠️
In 5.4: Absent ⚠️
In 5.8: Absent ⚠️
In 5.11: Absent ⚠️
In 5.13: Absent ⚠️
In 5.15: Absent ⚠️

In 5.19: ✅

struct folio {
    long unsigned int flags;
    struct list_head lru;
    void *__filler;
    unsigned int mlock_count;
    struct address_space *mapping;
    long unsigned int index;
    void *private;
    atomic_t _mapcount;
    atomic_t _refcount;
    long unsigned int memcg_data;
    struct page page;
};

In 6.2: ✅

struct folio {
    long unsigned int flags;
    struct list_head lru;
    void *__filler;
    unsigned int mlock_count;
    struct address_space *mapping;
    long unsigned int index;
    void *private;
    atomic_t _mapcount;
    atomic_t _refcount;
    long unsigned int memcg_data;
    struct page page;
    long unsigned int _flags_1;
    long unsigned int _head_1;
    unsigned char _folio_dtor;
    unsigned char _folio_order;
    atomic_t _compound_mapcount;
    atomic_t _subpages_mapcount;
    atomic_t _pincount;
    unsigned int _folio_nr_pages;
    struct page __page_1;
    long unsigned int _flags_2;
    long unsigned int _head_2;
    void *_hugetlb_subpool;
    void *_hugetlb_cgroup;
    void *_hugetlb_cgroup_rsvd;
    void *_hugetlb_hwpoison;
    struct page __page_2;
};

In 6.5: ✅

struct folio {
    long unsigned int flags;
    struct list_head lru;
    void *__filler;
    unsigned int mlock_count;
    struct address_space *mapping;
    long unsigned int index;
    void *private;
    atomic_t _mapcount;
    atomic_t _refcount;
    long unsigned int memcg_data;
    struct page page;
    long unsigned int _flags_1;
    long unsigned int _head_1;
    unsigned char _folio_dtor;
    unsigned char _folio_order;
    atomic_t _entire_mapcount;
    atomic_t _nr_pages_mapped;
    atomic_t _pincount;
    unsigned int _folio_nr_pages;
    struct page __page_1;
    long unsigned int _flags_2;
    long unsigned int _head_2;
    void *_hugetlb_subpool;
    void *_hugetlb_cgroup;
    void *_hugetlb_cgroup_rsvd;
    void *_hugetlb_hwpoison;
    long unsigned int _flags_2a;
    long unsigned int _head_2a;
    struct list_head _deferred_list;
    struct page __page_2;
};

In 6.8: ✅

struct folio {
    long unsigned int flags;
    struct list_head lru;
    void *__filler;
    unsigned int mlock_count;
    struct address_space *mapping;
    long unsigned int index;
    void *private;
    swp_entry_t swap;
    atomic_t _mapcount;
    atomic_t _refcount;
    long unsigned int memcg_data;
    struct page page;
    long unsigned int _flags_1;
    long unsigned int _head_1;
    long unsigned int _folio_avail;
    atomic_t _entire_mapcount;
    atomic_t _nr_pages_mapped;
    atomic_t _pincount;
    unsigned int _folio_nr_pages;
    struct page __page_1;
    long unsigned int _flags_2;
    long unsigned int _head_2;
    void *_hugetlb_subpool;
    void *_hugetlb_cgroup;
    void *_hugetlb_cgroup_rsvd;
    void *_hugetlb_hwpoison;
    long unsigned int _flags_2a;
    long unsigned int _head_2a;
    struct list_head _deferred_list;
    struct page __page_2;
};

Arch

In arm64: Absent ⚠️
In armhf: Absent ⚠️
In ppc64el: Absent ⚠️
In riscv64: Absent ⚠️

Flavor

In aws: Absent ⚠️
In azure: Absent ⚠️
In gcp: Absent ⚠️
In lowlatency: Absent ⚠️

Differences

Regular

Changed between 5.19 and 6.2 ⚠️
- Field added. long unsigned int _flags_1
- Field added. long unsigned int _head_1
- Field added. unsigned char _folio_dtor
- Field added. unsigned char _folio_order
- Field added. atomic_t _compound_mapcount
- Field added. atomic_t _subpages_mapcount
- Field added. atomic_t _pincount
- Field added. unsigned int _folio_nr_pages
- Field added. struct page __page_1
- Field added. long unsigned int _flags_2
- Field added. long unsigned int _head_2
- Field added. void *_hugetlb_subpool
- Field added. void *_hugetlb_cgroup
- Field added. void *_hugetlb_cgroup_rsvd
- Field added. void *_hugetlb_hwpoison
- Field added. struct page __page_2
Changed between 6.2 and 6.5 ⚠️
- Field added. atomic_t _entire_mapcount
- Field added. atomic_t _nr_pages_mapped
- Field added. long unsigned int _flags_2a
- Field added. long unsigned int _head_2a
- Field added. struct list_head _deferred_list
- Field removed. atomic_t _compound_mapcount
- Field removed. atomic_t _subpages_mapcount
Changed between 6.5 and 6.8 ⚠️
- Field added. swp_entry_t swap
- Field added. long unsigned int _folio_avail
- Field removed. unsigned char _folio_dtor
- Field removed. unsigned char _folio_order

website-struct

Struct: folio

Status

Differences

Struct: `folio`