/*

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

   *

   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as

   * published by the Free Software Foundation.
   *

   * This program is distributed in the hope that it would be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.

   *

   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write the Free Software Foundation,
   * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

   */

  #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 *, xfs_off_t, size_t,

  			struct xfs_bmbt_irec *, int);

  int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t,

  			struct xfs_bmbt_irec *);

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

  void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *,
  		struct xfs_bmbt_irec *);

  xfs_extlen_t xfs_eof_alignment(struct xfs_inode *ip, xfs_extlen_t extsize);

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

  extern const struct iomap_ops xfs_iomap_ops;
  extern const struct iomap_ops xfs_xattr_iomap_ops;

  #endif /* __XFS_IOMAP_H__*/