/*
   * Wrapper functions for accessing the file_struct fd array.
   */
  
  #ifndef __LINUX_FILE_H
  #define __LINUX_FILE_H

  #include <linux/compiler.h>

  #include <linux/types.h>

  #include <linux/posix_types.h>

  struct file;

  extern void __fput(struct file *);
  extern void fput(struct file *);

  extern void drop_file_write_access(struct file *file);

  struct file_operations;
  struct vfsmount;
  struct dentry;
  extern int init_file(struct file *, struct vfsmount *mnt,

  		struct dentry *dentry, fmode_t mode,

  		const struct file_operations *fop);
  extern struct file *alloc_file(struct vfsmount *, struct dentry *dentry,

  		fmode_t mode, const struct file_operations *fop);

  static inline void fput_light(struct file *file, int fput_needed)
  {
  	if (unlikely(fput_needed))
  		fput(file);
  }

  extern struct file *fget(unsigned int fd);
  extern struct file *fget_light(unsigned int fd, int *fput_needed);
  extern void set_close_on_exec(unsigned int fd, int flag);

  extern void put_filp(struct file *);

  extern int alloc_fd(unsigned start, unsigned flags);

  extern int get_unused_fd(void);

  #define get_unused_fd_flags(flags) alloc_fd(0, (flags))

  extern void put_unused_fd(unsigned int fd);

  extern void fd_install(unsigned int fd, struct file *file);

  #endif /* __LINUX_FILE_H */