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 version 2.
8 */
9
10 #ifndef __RGRP_DOT_H__
11 #define __RGRP_DOT_H__
12
13 struct gfs2_rgrpd;
14 struct gfs2_sbd;
15 struct gfs2_holder;
16
17 void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
18
19 struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);
20 struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
21 struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
22
23 void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
24 int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
25
26 int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
27 void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
28 void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
29
30 void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
31
32 struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
33 static inline void gfs2_alloc_put(struct gfs2_inode *ip)
34 {
35 BUG_ON(ip->i_alloc == NULL);
36 kfree(ip->i_alloc);
37 ip->i_alloc = NULL;
38 }
39
40 int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
41 char *file, unsigned int line);
42 #define gfs2_inplace_reserve(ip) \
43 gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
44
45 void gfs2_inplace_release(struct gfs2_inode *ip);
46
47 unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
48
49 u64 gfs2_alloc_data(struct gfs2_inode *ip);
50 u64 gfs2_alloc_meta(struct gfs2_inode *ip);
51 u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
52
53 void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
54 void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
55 void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
56 void gfs2_unlink_di(struct inode *inode);
57
58 struct gfs2_rgrp_list {
59 unsigned int rl_rgrps;
60 unsigned int rl_space;
61 struct gfs2_rgrpd **rl_rgd;
62 struct gfs2_holder *rl_ghs;
63 };
64
65 void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
66 u64 block);
67 void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
68 int flags);
69 void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
70 u64 gfs2_ri_total(struct gfs2_sbd *sdp);
71
72 #endif /* __RGRP_DOT_H__ */
73
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