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7#ifndef __RGRP_DOT_H__
8#define __RGRP_DOT_H__
9
10#include <linux/slab.h>
11#include <linux/uaccess.h>
12
13
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15
16
17
18#define RGRP_RSRV_MINBLKS 32
19#define RGRP_RSRV_ADDBLKS 64
20
21struct gfs2_rgrpd;
22struct gfs2_sbd;
23struct gfs2_holder;
24
25extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
26
27extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact);
28extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
29extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
30
31extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
32extern int gfs2_rindex_update(struct gfs2_sbd *sdp);
33extern void gfs2_free_clones(struct gfs2_rgrpd *rgd);
34extern int gfs2_rgrp_go_instantiate(struct gfs2_holder *gh);
35extern void gfs2_rgrp_brelse(struct gfs2_rgrpd *rgd);
36
37extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
38
39#define GFS2_AF_ORLOV 1
40extern int gfs2_inplace_reserve(struct gfs2_inode *ip,
41 struct gfs2_alloc_parms *ap);
42extern void gfs2_inplace_release(struct gfs2_inode *ip);
43
44extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
45 bool dinode, u64 *generation);
46
47extern void gfs2_rs_deltree(struct gfs2_blkreserv *rs);
48extern void gfs2_rs_delete(struct gfs2_inode *ip);
49extern void __gfs2_free_blocks(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
50 u64 bstart, u32 blen, int meta);
51extern void gfs2_free_meta(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
52 u64 bstart, u32 blen);
53extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
54extern void gfs2_unlink_di(struct inode *inode);
55extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
56 unsigned int type);
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
65extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
66 u64 block);
67extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist);
68extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
69extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
70extern void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,
71 const char *fs_id_buf);
72extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
73 struct buffer_head *bh,
74 const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed);
75extern int gfs2_fitrim(struct file *filp, void __user *argp);
76
77
78static inline bool gfs2_rs_active(const struct gfs2_blkreserv *rs)
79{
80 return !RB_EMPTY_NODE(&rs->rs_node);
81}
82
83static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block)
84{
85 u64 first = rgd->rd_data0;
86 u64 last = first + rgd->rd_data;
87 return first <= block && block < last;
88}
89
90extern void check_and_update_goal(struct gfs2_inode *ip);
91
92extern void rgrp_lock_local(struct gfs2_rgrpd *rgd);
93extern void rgrp_unlock_local(struct gfs2_rgrpd *rgd);
94
95#endif
96