fs/gfs2/rgrp.h

   1 /*
   2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3  * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
   4  *
   5  * This copyrighted material is made available to anyone wishing to use,
   6  * modify, copy, or redistribute it subject to the terms and conditions
   7  * of the GNU General Public License v.2.
   8  */
   9
  10 #ifndef __RGRP_DOT_H__
  11 #define __RGRP_DOT_H__
  12
  13 void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
  14
  15 struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, uint64_t blk);
  16 struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
  17 struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
  18
  19 void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
  20 int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
  21
  22 int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
  23 void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
  24 void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
  25
  26 void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
  27
  28 struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
  29 void gfs2_alloc_put(struct gfs2_inode *ip);
  30
  31 int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
  32                          char *file, unsigned int line);
  33 #define gfs2_inplace_reserve(ip) \
  34 gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
  35
  36 void gfs2_inplace_release(struct gfs2_inode *ip);
  37
  38 unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, uint64_t block);
  39
  40 u64 gfs2_alloc_data(struct gfs2_inode *ip);
  41 u64 gfs2_alloc_meta(struct gfs2_inode *ip);
  42 u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
  43
  44 void gfs2_free_data(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen);
  45 void gfs2_free_meta(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen);
  46 void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
  47 void gfs2_unlink_di(struct inode *inode);
  48
  49 struct gfs2_rgrp_list {
  50         unsigned int rl_rgrps;
  51         unsigned int rl_space;
  52         struct gfs2_rgrpd **rl_rgd;
  53         struct gfs2_holder *rl_ghs;
  54 };
  55
  56 void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
  57                     uint64_t block);
  58 void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
  59                       int flags);
  60 void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
  61
  62 #endif /* __RGRP_DOT_H__ */