tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 BUG_ON(ip->i_alloc == NULL);
36 kfree(ip->i_alloc);
37 ip->i_alloc = NULL;
38}
39
40int gfs2_inplace_reserve_i(struct gfs2_inode *ip,
41 char *file, unsigned int line);
42#define gfs2_inplace_reserve(ip) \
43gfs2_inplace_reserve_i((ip), __FILE__, __LINE__)
44
45void gfs2_inplace_release(struct gfs2_inode *ip);
46
47unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
48
49u64 gfs2_alloc_data(struct gfs2_inode *ip);
50u64 gfs2_alloc_meta(struct gfs2_inode *ip);
51u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
52
53void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);
54void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
55void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
56void gfs2_unlink_di(struct inode *inode);
57
58struct 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
65void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist,
66 u64 block);
67void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state,
68 int flags);
69void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
70u64 gfs2_ri_total(struct gfs2_sbd *sdp);
71
72#endif /* __RGRP_DOT_H__ */