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10#ifndef __RGRP_DOT_H__
11#define __RGRP_DOT_H__
12
13#include <linux/slab.h>
14#include <linux/uaccess.h>
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20
21#define RGRP_RSRV_MINBYTES 8
22#define RGRP_RSRV_MINBLKS ((u32)(RGRP_RSRV_MINBYTES * GFS2_NBBY))
23#define RGRP_RSRV_ADDBLKS 64
24
25struct gfs2_rgrpd;
26struct gfs2_sbd;
27struct gfs2_holder;
28
29extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
30
31extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact);
32extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
33extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
34
35extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
36extern int gfs2_rindex_update(struct gfs2_sbd *sdp);
37extern void gfs2_free_clones(struct gfs2_rgrpd *rgd);
38extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh);
39extern void gfs2_rgrp_brelse(struct gfs2_rgrpd *rgd);
40extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh);
41
42extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
43
44#define GFS2_AF_ORLOV 1
45extern int gfs2_inplace_reserve(struct gfs2_inode *ip,
46 struct gfs2_alloc_parms *ap);
47extern void gfs2_inplace_release(struct gfs2_inode *ip);
48
49extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
50 bool dinode, u64 *generation);
51
52extern int gfs2_rsqa_alloc(struct gfs2_inode *ip);
53extern void gfs2_rs_deltree(struct gfs2_blkreserv *rs);
54extern void gfs2_rsqa_delete(struct gfs2_inode *ip, atomic_t *wcount);
55extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
56extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
57extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
58extern void gfs2_unlink_di(struct inode *inode);
59extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
60 unsigned int type);
61
62struct gfs2_rgrp_list {
63 unsigned int rl_rgrps;
64 unsigned int rl_space;
65 struct gfs2_rgrpd **rl_rgd;
66 struct gfs2_holder *rl_ghs;
67};
68
69extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
70 u64 block);
71extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state);
72extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
73extern u64 gfs2_ri_total(struct gfs2_sbd *sdp);
74extern void gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl);
75extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
76 struct buffer_head *bh,
77 const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed);
78extern int gfs2_fitrim(struct file *filp, void __user *argp);
79
80
81static inline bool gfs2_rs_active(const struct gfs2_blkreserv *rs)
82{
83 return rs && !RB_EMPTY_NODE(&rs->rs_node);
84}
85
86extern void check_and_update_goal(struct gfs2_inode *ip);
87#endif
88