website-struct

Struct: ext4_allocation_context

Status

Regular

• In 4.4: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 4.8: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 4.10: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 4.13: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 4.15: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 4.18: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.0: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.3: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.4: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.8: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.11: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.13: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      ext4_group_t ac_last_optimal_group;
      __u32 ac_groups_considered;
      __u32 ac_flags;
      __u16 ac_groups_scanned;
      __u16 ac_groups_linear_remaining;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.15: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      ext4_group_t ac_last_optimal_group;
      __u32 ac_groups_considered;
      __u32 ac_flags;
      __u16 ac_groups_scanned;
      __u16 ac_groups_linear_remaining;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 5.19: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      ext4_group_t ac_last_optimal_group;
      __u32 ac_groups_considered;
      __u32 ac_flags;
      __u16 ac_groups_scanned;
      __u16 ac_groups_linear_remaining;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 6.2: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u32 ac_groups_considered;
      __u32 ac_flags;
      __u16 ac_groups_scanned;
      __u16 ac_groups_linear_remaining;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 6.5: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      ext4_grpblk_t ac_orig_goal_len;
      __u32 ac_groups_considered;
      __u32 ac_flags;
      __u16 ac_groups_scanned;
      __u16 ac_groups_linear_remaining;
      __u16 ac_found;
      __u16 ac_cX_found[5];
      __u16 ac_tail;
      __u16 ac_buddy;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In 6.8: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      ext4_grpblk_t ac_orig_goal_len;
      __u32 ac_flags;
      __u16 ac_groups_scanned;
      __u16 ac_groups_linear_remaining;
      __u16 ac_found;
      __u16 ac_cX_found[5];
      __u16 ac_tail;
      __u16 ac_buddy;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

Arch

• In arm64: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In armhf: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In ppc64el: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In riscv64: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

Flavor

• In aws: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In azure: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In gcp: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

• In lowlatency: ✅

  struct ext4_allocation_context {
      struct inode *ac_inode;
      struct super_block *ac_sb;
      struct ext4_free_extent ac_o_ex;
      struct ext4_free_extent ac_g_ex;
      struct ext4_free_extent ac_b_ex;
      struct ext4_free_extent ac_f_ex;
      __u16 ac_groups_scanned;
      __u16 ac_found;
      __u16 ac_tail;
      __u16 ac_buddy;
      __u16 ac_flags;
      __u8 ac_status;
      __u8 ac_criteria;
      __u8 ac_2order;
      __u8 ac_op;
      struct page *ac_bitmap_page;
      struct page *ac_buddy_page;
      struct ext4_prealloc_space *ac_pa;
      struct ext4_locality_group *ac_lg;
  };
  

Differences

Regular

• No changes between 4.4 and 4.8 ✅
• No changes between 4.8 and 4.10 ✅
• 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 ✅
• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• Changed between 5.11 and 5.13 ⚠️

  • Field added. ext4_group_t ac_last_optimal_group
  • Field added. __u32 ac_groups_considered
  • Field added. __u16 ac_groups_linear_remaining
  • Field type changed. __u16 ac_flags ➡️ __u32 ac_flags
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• Changed between 5.19 and 6.2 ⚠️

  • Field removed. ext4_group_t ac_last_optimal_group
• Changed between 6.2 and 6.5 ⚠️

  • Field added. ext4_grpblk_t ac_orig_goal_len
  • Field added. __u16 ac_cX_found[5]
• Changed between 6.5 and 6.8 ⚠️

  • Field removed. __u32 ac_groups_considered

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

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 ✅