website-struct

Struct: file_operations

Status

Regular

• In 4.4: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      unsigned int (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*aio_fsync)(struct kiocb *, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
  };
  

• In 4.8: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      unsigned int (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*aio_fsync)(struct kiocb *, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
      ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64);
  };
  

• In 4.10: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      unsigned int (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
      ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64);
  };
  

• In 4.13: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      unsigned int (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
      ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64);
  };
  

• In 4.15: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      unsigned int (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
      ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64);
  };
  

• In 4.18: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64);
      ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64);
  };
  

• In 5.0: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.3: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.4: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.8: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.11: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.13: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.15: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In 5.19: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, struct io_comp_batch *, unsigned int);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
      int (*uring_cmd)(struct io_uring_cmd *, unsigned int);
  };
  

• In 6.2: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, struct io_comp_batch *, unsigned int);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
      int (*uring_cmd)(struct io_uring_cmd *, unsigned int);
      int (*uring_cmd_iopoll)(struct io_uring_cmd *, struct io_comp_batch *, unsigned int);
  };
  

• In 6.5: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, struct io_comp_batch *, unsigned int);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      void (*splice_eof)(struct file *);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
      int (*uring_cmd)(struct io_uring_cmd *, unsigned int);
      int (*uring_cmd_iopoll)(struct io_uring_cmd *, struct io_comp_batch *, unsigned int);
  };
  

• In 6.8: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, struct io_comp_batch *, unsigned int);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      void (*splice_eof)(struct file *);
      int (*setlease)(struct file *, int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
      int (*uring_cmd)(struct io_uring_cmd *, unsigned int);
      int (*uring_cmd_iopoll)(struct io_uring_cmd *, struct io_comp_batch *, unsigned int);
  };
  

Arch

• In arm64: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In armhf: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In ppc64el: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In riscv64: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

Flavor

• In aws: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In azure: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In gcp: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

• In lowlatency: ✅

  struct file_operations {
      struct module *owner;
      loff_t (*llseek)(struct file *, loff_t, int);
      ssize_t (*read)(struct file *, char *, size_t, loff_t *);
      ssize_t (*write)(struct file *, const char *, size_t, loff_t *);
      ssize_t (*read_iter)(struct kiocb *, struct iov_iter *);
      ssize_t (*write_iter)(struct kiocb *, struct iov_iter *);
      int (*iopoll)(struct kiocb *, bool);
      int (*iterate)(struct file *, struct dir_context *);
      int (*iterate_shared)(struct file *, struct dir_context *);
      __poll_t (*poll)(struct file *, struct poll_table_struct *);
      long int (*unlocked_ioctl)(struct file *, unsigned int, long unsigned int);
      long int (*compat_ioctl)(struct file *, unsigned int, long unsigned int);
      int (*mmap)(struct file *, struct vm_area_struct *);
      long unsigned int mmap_supported_flags;
      int (*open)(struct inode *, struct file *);
      int (*flush)(struct file *, fl_owner_t);
      int (*release)(struct inode *, struct file *);
      int (*fsync)(struct file *, loff_t, loff_t, int);
      int (*fasync)(int, struct file *, int);
      int (*lock)(struct file *, int, struct file_lock *);
      ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int);
      long unsigned int (*get_unmapped_area)(struct file *, long unsigned int, long unsigned int, long unsigned int, long unsigned int);
      int (*check_flags)(int);
      int (*setfl)(struct file *, long unsigned int);
      int (*flock)(struct file *, int, struct file_lock *);
      ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
      ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
      int (*setlease)(struct file *, long int, struct file_lock **, void **);
      long int (*fallocate)(struct file *, int, loff_t, loff_t);
      void (*show_fdinfo)(struct seq_file *, struct file *);
      ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int);
      loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int);
      int (*fadvise)(struct file *, loff_t, loff_t, int);
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. int (*iterate_shared)(struct file *, struct dir_context *)
  • Field added. int (*setfl)(struct file *, long unsigned int)
  • Field added. ssize_t (*copy_file_range)(struct file *, loff_t, struct file *, loff_t, size_t, unsigned int)
  • Field added. int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64)
  • Field added. ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64)
• Changed between 4.8 and 4.10 ⚠️

  • Field removed. int (*aio_fsync)(struct kiocb *, int)
• No changes between 4.10 and 4.13 ✅
• Changed between 4.13 and 4.15 ⚠️

  • Field added. long unsigned int mmap_supported_flags
• Changed between 4.15 and 4.18 ⚠️

  • Field type changed. unsigned int (*poll)(struct file *, struct poll_table_struct *) ➡️ __poll_t (*poll)(struct file *, struct poll_table_struct *)
• Changed between 4.18 and 5.0 ⚠️

  • Field added. loff_t (*remap_file_range)(struct file *, loff_t, struct file *, loff_t, loff_t, unsigned int)
  • Field added. int (*fadvise)(struct file *, loff_t, loff_t, int)
  • Field removed. int (*clone_file_range)(struct file *, loff_t, struct file *, loff_t, u64)
  • Field removed. ssize_t (*dedupe_file_range)(struct file *, u64, u64, struct file *, u64)
• Changed between 5.0 and 5.3 ⚠️

  • Field added. int (*iopoll)(struct kiocb *, bool)
• 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 removed. int (*setfl)(struct file *, long unsigned int)
• Changed between 5.13 and 5.15 ⚠️

  • Field added. int (*setfl)(struct file *, long unsigned int)
• Changed between 5.15 and 5.19 ⚠️

  • Field added. int (*uring_cmd)(struct io_uring_cmd *, unsigned int)
  • Field removed. int (*setfl)(struct file *, long unsigned int)
  • Field type changed. int (*iopoll)(struct kiocb *, bool) ➡️ int (*iopoll)(struct kiocb *, struct io_comp_batch *, unsigned int)
• Changed between 5.19 and 6.2 ⚠️

  • Field added. int (*uring_cmd_iopoll)(struct io_uring_cmd *, struct io_comp_batch *, unsigned int)
• Changed between 6.2 and 6.5 ⚠️

  • Field added. void (*splice_eof)(struct file *)
  • Field removed. int (*iterate)(struct file *, struct dir_context *)
  • Field removed. ssize_t (*sendpage)(struct file *, struct page *, int, size_t, loff_t *, int)
• Changed between 6.5 and 6.8 ⚠️

  • Field type changed. int (*setlease)(struct file *, long int, struct file_lock **, void **) ➡️ int (*setlease)(struct file *, int, struct file_lock **, void **)

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 ✅