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) 2004-2008 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#include <linux/slab.h>
14
15struct gfs2_rgrpd;
16struct gfs2_sbd;
17struct gfs2_holder;
18
19extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
20
21extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk);
22extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
23extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
24
25extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
26extern int gfs2_rindex_update(struct gfs2_sbd *sdp);
27extern void gfs2_free_clones(struct gfs2_rgrpd *rgd);
28extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh);
29extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh);
30
31extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
32static inline void gfs2_alloc_put(struct gfs2_inode *ip)
33{
34 BUG_ON(ip->i_alloc == NULL);
35 kfree(ip->i_alloc);
36 ip->i_alloc = NULL;
37}
38
39extern int gfs2_inplace_reserve(struct gfs2_inode *ip);
40extern void gfs2_inplace_release(struct gfs2_inode *ip);
41
42extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n);
43extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation);
44
45extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
46extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
47extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
48extern void gfs2_unlink_di(struct inode *inode);
49extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
50 unsigned int type);
51
52struct gfs2_rgrp_list {
53 unsigned int rl_rgrps;
54 unsigned int rl_space;
55 struct gfs2_rgrpd **rl_rgd;
56 struct gfs2_holder *rl_ghs;
57};
58
59extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
60 u64 block);
61extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
62extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
63extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
64extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
65extern void gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
66 struct buffer_head *bh,
67 const struct gfs2_bitmap *bi);
68
69#endif /* __RGRP_DOT_H__ */