website-struct

Struct: dio

Status

Regular

• In 4.4: ✅

  struct dio {
      int flags;
      int rw;
      blk_qc_t bio_cookie;
      struct block_device *bio_bdev;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 4.8: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct block_device *bio_bdev;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 4.10: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct block_device *bio_bdev;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 4.13: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct block_device *bio_bdev;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 4.15: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 4.18: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.0: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.3: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.4: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.8: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.11: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.13: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.15: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 5.19: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 6.2: ✅

  struct dio {
      int flags;
      blk_opf_t opf;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 6.5: ✅

  struct dio {
      int flags;
      blk_opf_t opf;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      bool is_pinned;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In 6.8: ✅

  struct dio {
      int flags;
      blk_opf_t opf;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      bool is_pinned;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

Arch

• In arm64: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In armhf: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In ppc64el: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In riscv64: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

Flavor

• In aws: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In azure: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In gcp: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

• In lowlatency: ✅

  struct dio {
      int flags;
      int op;
      int op_flags;
      blk_qc_t bio_cookie;
      struct gendisk *bio_disk;
      struct inode *inode;
      loff_t i_size;
      dio_iodone_t *end_io;
      void *private;
      spinlock_t bio_lock;
      int page_errors;
      int is_async;
      bool defer_completion;
      bool should_dirty;
      int io_error;
      long unsigned int refcount;
      struct bio *bio_list;
      struct task_struct *waiter;
      struct kiocb *iocb;
      ssize_t result;
      struct page * pages[64];
      struct work_struct complete_work;
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. int op
  • Field added. int op_flags
  • Field removed. int rw
• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• Changed between 4.13 and 4.15 ⚠️

  • Field added. struct gendisk *bio_disk
  • Field removed. struct block_device *bio_bdev
• 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 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• Changed between 5.15 and 5.19 ⚠️

  • Field removed. blk_qc_t bio_cookie
• Changed between 5.19 and 6.2 ⚠️

  • Field added. blk_opf_t opf
  • Field removed. int op
  • Field removed. int op_flags
• Changed between 6.2 and 6.5 ⚠️

  • Field added. bool is_pinned
• No changes between 6.5 and 6.8 ✅

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 ✅