 int iocti(struct inode *inode,

struct file *file,

unsigned int cmd,

signed long arg)

    ,     -
 /.  ,     
  .      -
 iocti().

 int rnmap (struct file *file, struct vm_area_struct *vma)

          -
       mmap ().

 int open(struct inode *inode, struct file *file)

          
 .      open ().

 int flush(struct file *file)

    VFS,    
  .       .

 int release(struct inode *inode, struct file *file)

    VFS,     
, ,   ,   -
  ,   close ()  .
       .

 int fsync(struct file *file,

struct dentry *dentry,

int datasync)

      fsync ()    
   .

 int aio_fsync(struct kiocb *iocb, int datasync)

      aio_fsync ()   
    ,    iocb.

 int fasync(int fd, struct file *file, int on)

          -
   -.

 vcA- \.^˰>^-\^\- ^-\.\. *^.Y\.^;, \\\- <^, s^^s-vs.^- ^.\._\... *VQ^V.\
       .

 ssize t readv(struct file *file,

const struct iovec *vector,

unsigned long count,

loff_t *offset)

      readv ()   -
     count ,   
vector.         -
  .

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