text: /*
   * 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__
  
  #include <linux/slab.h>
  
  struct gfs2_rgrpd;
  struct gfs2_sbd;
  struct gfs2_holder;
  
  extern 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);
  
  extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
  extern int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
  
  extern int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
  extern void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
  extern void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
  
  extern void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
  
  extern 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;
  }
  
  extern int gfs2_inplace_reserve_i(struct gfs2_inode *ip, int hold_rindex,
  				  char *file, unsigned int line);
  #define gfs2_inplace_reserve(ip) \
  	gfs2_inplace_reserve_i((ip), 1, __FILE__, __LINE__)
  #define gfs2_inplace_reserve_ri(ip) \
  	gfs2_inplace_reserve_i((ip), 0, __FILE__, __LINE__)
  
  extern void gfs2_inplace_release(struct gfs2_inode *ip);
  
  extern int gfs2_ri_update(struct gfs2_inode *ip);
  extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n);
  extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation);
  
  extern void __gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
  extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
  extern void __gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
  extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
  extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
  extern void gfs2_unlink_di(struct inode *inode);
  extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
  			       unsigned int type);
  
  struct gfs2_rgrp_list {
  	unsigned int rl_rgrps;
  	unsigned int rl_space;
  	struct gfs2_rgrpd **rl_rgd;
  	struct gfs2_holder *rl_ghs;
  };
  
  extern void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
  			   u64 block);
  extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
  extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
  extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
  extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
  
  #endif /* __RGRP_DOT_H__ */
  