website-struct

Struct: io_buffer_list

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 io_buffer_list {
      struct list_head buf_list;
      struct page **buf_pages;
      struct io_uring_buf_ring *buf_ring;
      __u16 bgid;
      __u16 buf_nr_pages;
      __u16 nr_entries;
      __u16 head;
      __u16 mask;
  };
  

• In 6.2: ✅

  struct io_buffer_list {
      struct list_head buf_list;
      struct page **buf_pages;
      struct io_uring_buf_ring *buf_ring;
      __u16 bgid;
      __u16 buf_nr_pages;
      __u16 nr_entries;
      __u16 head;
      __u16 mask;
  };
  

• In 6.5: ✅

  struct io_buffer_list {
      struct list_head buf_list;
      struct page **buf_pages;
      struct io_uring_buf_ring *buf_ring;
      __u16 bgid;
      __u16 buf_nr_pages;
      __u16 nr_entries;
      __u16 head;
      __u16 mask;
      __u8 is_mapped;
      __u8 is_mmap;
  };
  

• In 6.8: ✅

  struct io_buffer_list {
      struct list_head buf_list;
      struct page **buf_pages;
      struct io_uring_buf_ring *buf_ring;
      struct callback_head rcu;
      __u16 bgid;
      __u16 buf_nr_pages;
      __u16 nr_entries;
      __u16 head;
      __u16 mask;
      __u8 is_mapped;
      __u8 is_mmap;
      __u8 is_ready;
  };
  

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

• No changes between 5.19 and 6.2 ✅
• Changed between 6.2 and 6.5 ⚠️

  • Field added. __u8 is_mapped
  • Field added. __u8 is_mmap
• Changed between 6.5 and 6.8 ⚠️

  • Field added. struct callback_head rcu
  • Field added. __u8 is_ready