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

   * Copyright (C) 2004-2008 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 __RGRP_DOT_H__
  #define __RGRP_DOT_H__

  struct gfs2_rgrpd;
  struct gfs2_sbd;
  struct gfs2_holder;

  void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);

  struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);

  struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
  struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
  
  void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
  int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
  
  int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
  void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
  void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
  
  void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
  
  struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);

  static inline void gfs2_alloc_put(struct gfs2_inode *ip)
  {

  	BUG_ON(ip->i_alloc == NULL);
  	kfree(ip->i_alloc);
  	ip->i_alloc = NULL;

  }

  
  int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
  			 char *file, unsigned int line);
  #define gfs2_inplace_reserve(ip) \
  gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
  
  void gfs2_inplace_release(struct gfs2_inode *ip);

  unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);

  u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n);

  u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);

  void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
  void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);

  void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);

  void gfs2_unlink_di(struct inode *inode);

  
  struct gfs2_rgrp_list {
  	unsigned int rl_rgrps;
  	unsigned int rl_space;
  	struct gfs2_rgrpd **rl_rgd;
  	struct gfs2_holder *rl_ghs;
  };
  
  void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,

  		    u64 block);

  void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);

  void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);

  u64 gfs2_ri_total(struct gfs2_sbd *sdp);

  
  #endif /* __RGRP_DOT_H__ */