/*
   * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.

   * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.

   *
   * This copyrighted material is made available to anyone wishing to use,
   * modify, copy, or redistribute it subject to the terms and conditions

   * of the GNU General Public License version 2.

   */
  
  #ifndef __TRANS_DOT_H__
  #define __TRANS_DOT_H__

  #include <linux/buffer_head.h>
  struct gfs2_sbd;
  struct gfs2_rgrpd;
  struct gfs2_glock;

  #define RES_DINODE	1
  #define RES_INDIRECT	1
  #define RES_JDATA	1
  #define RES_DATA	1
  #define RES_LEAF	1

  #define RES_RG_HDR	1

  #define RES_RG_BIT	2
  #define RES_EATTR	1

  #define RES_STATFS	1
  #define RES_QUOTA	2

  /* reserve either the number of blocks to be allocated plus the rg header
   * block, or all of the blocks in the rg, whichever is smaller */

  static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip)

  {

  	const struct gfs2_blkreserv *rs = ip->i_res;
  	if (rs->rs_requested < ip->i_rgd->rd_length)
  		return rs->rs_requested + 1;

  	return ip->i_rgd->rd_length;

  }

  extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
  			    unsigned int revokes);

  extern void gfs2_trans_end(struct gfs2_sbd *sdp);
  extern void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta);
  extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
  extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);

  
  #endif /* __TRANS_DOT_H__ */