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-rw-r--r--fs/gfs2/rgrp.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
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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
13struct gfs2_rgrpd;
14struct gfs2_sbd;
15struct gfs2_holder;
16
17void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
18
19struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);
20struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
21struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
22
23void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
24int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh);
25
26int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd);
27void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd);
28void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd);
29
30void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd);
31
32struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
33static inline void gfs2_alloc_put(struct gfs2_inode *ip)
34{
35 return; /* Se we can see where ip->i_alloc is used */
36}
37
38int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
39 char *file, unsigned int line);
40#define gfs2_inplace_reserve(ip) \
41gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
42
43void gfs2_inplace_release(struct gfs2_inode *ip);
44
45unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
46
47u64 gfs2_alloc_data(struct gfs2_inode *ip);
48u64 gfs2_alloc_meta(struct gfs2_inode *ip);
49u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
50
51void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
52void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
53void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
54void gfs2_unlink_di(struct inode *inode);
55
56struct gfs2_rgrp_list {
57 unsigned int rl_rgrps;
58 unsigned int rl_space;
59 struct gfs2_rgrpd **rl_rgd;
60 struct gfs2_holder *rl_ghs;
61};
62
63void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
64 u64 block);
65void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
66 int flags);
67void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
68
69#endif /* __RGRP_DOT_H__ */