#ifndef XFS_DISCARD_H
  #define XFS_DISCARD_H 1
  
  struct fstrim_range;
  struct list_head;
  
  extern int	xfs_ioc_trim(struct xfs_mount *, struct fstrim_range __user *);
  extern int	xfs_discard_extents(struct xfs_mount *, struct list_head *);
  
  #endif /* XFS_DISCARD_H */