// SPDX-License-Identifier: GPL-2.0

  /*

   * Copyright (c) 2003-2005 Silicon Graphics, Inc.
   * All Rights Reserved.

   */

  #ifndef __XFS_IOMAP_H__
  #define __XFS_IOMAP_H__

  #include <linux/iomap.h>

  struct xfs_inode;
  struct xfs_bmbt_irec;

  int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb,
  		xfs_fileoff_t count_fsb, struct xfs_bmbt_irec *imap);

  int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool);

  xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip,
  		xfs_fileoff_t end_fsb);

  int xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *,

  		struct xfs_bmbt_irec *, u16);

  static inline xfs_filblks_t
  xfs_aligned_fsb_count(
  	xfs_fileoff_t		offset_fsb,
  	xfs_filblks_t		count_fsb,
  	xfs_extlen_t		extsz)
  {
  	if (extsz) {
  		xfs_extlen_t	align;

  		div_u64_rem(offset_fsb, extsz, &align);

  		if (align)
  			count_fsb += align;

  		div_u64_rem(count_fsb, extsz, &align);

  		if (align)
  			count_fsb += extsz - align;
  	}
  
  	return count_fsb;
  }

  extern const struct iomap_ops xfs_buffered_write_iomap_ops;
  extern const struct iomap_ops xfs_direct_write_iomap_ops;

  extern const struct iomap_ops xfs_read_iomap_ops;

  extern const struct iomap_ops xfs_seek_iomap_ops;

  extern const struct iomap_ops xfs_xattr_iomap_ops;

  #endif /* __XFS_IOMAP_H__*/