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6#ifndef __XFS_RTALLOC_H__
7#define __XFS_RTALLOC_H__
8
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10
11struct xfs_mount;
12struct xfs_trans;
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18
19struct xfs_rtalloc_rec {
20 xfs_rtblock_t ar_startext;
21 xfs_rtblock_t ar_extcount;
22};
23
24typedef int (*xfs_rtalloc_query_range_fn)(
25 struct xfs_trans *tp,
26 struct xfs_rtalloc_rec *rec,
27 void *priv);
28
29#ifdef CONFIG_XFS_RT
30
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37
38
39int
40xfs_rtallocate_extent(
41 struct xfs_trans *tp,
42 xfs_rtblock_t bno,
43 xfs_extlen_t minlen,
44 xfs_extlen_t maxlen,
45 xfs_extlen_t *len,
46 int wasdel,
47 xfs_extlen_t prod,
48 xfs_rtblock_t *rtblock);
49
50
51
52
53
54int
55xfs_rtfree_extent(
56 struct xfs_trans *tp,
57 xfs_rtblock_t bno,
58 xfs_extlen_t len);
59
60
61
62
63int
64xfs_rtmount_init(
65 struct xfs_mount *mp);
66void
67xfs_rtunmount_inodes(
68 struct xfs_mount *mp);
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70
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72
73
74int
75xfs_rtmount_inodes(
76 struct xfs_mount *mp);
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83
84
85int
86xfs_rtpick_extent(
87 struct xfs_mount *mp,
88 struct xfs_trans *tp,
89 xfs_extlen_t len,
90 xfs_rtblock_t *pick);
91
92
93
94
95int
96xfs_growfs_rt(
97 struct xfs_mount *mp,
98 xfs_growfs_rt_t *in);
99
100
101
102
103int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp,
104 xfs_rtblock_t block, int issum, struct xfs_buf **bpp);
105int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp,
106 xfs_rtblock_t start, xfs_extlen_t len, int val,
107 xfs_rtblock_t *new, int *stat);
108int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp,
109 xfs_rtblock_t start, xfs_rtblock_t limit,
110 xfs_rtblock_t *rtblock);
111int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp,
112 xfs_rtblock_t start, xfs_rtblock_t limit,
113 xfs_rtblock_t *rtblock);
114int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp,
115 xfs_rtblock_t start, xfs_extlen_t len, int val);
116int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp,
117 int log, xfs_rtblock_t bbno, int delta,
118 xfs_buf_t **rbpp, xfs_fsblock_t *rsb,
119 xfs_suminfo_t *sum);
120int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log,
121 xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp,
122 xfs_fsblock_t *rsb);
123int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp,
124 xfs_rtblock_t start, xfs_extlen_t len,
125 struct xfs_buf **rbpp, xfs_fsblock_t *rsb);
126int xfs_rtalloc_query_range(struct xfs_trans *tp,
127 struct xfs_rtalloc_rec *low_rec,
128 struct xfs_rtalloc_rec *high_rec,
129 xfs_rtalloc_query_range_fn fn,
130 void *priv);
131int xfs_rtalloc_query_all(struct xfs_trans *tp,
132 xfs_rtalloc_query_range_fn fn,
133 void *priv);
134bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
135int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
136 xfs_rtblock_t start, xfs_extlen_t len,
137 bool *is_free);
138#else
139# define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb) (ENOSYS)
140# define xfs_rtfree_extent(t,b,l) (ENOSYS)
141# define xfs_rtpick_extent(m,t,l,rb) (ENOSYS)
142# define xfs_growfs_rt(mp,in) (ENOSYS)
143# define xfs_rtalloc_query_range(t,l,h,f,p) (ENOSYS)
144# define xfs_rtalloc_query_all(t,f,p) (ENOSYS)
145# define xfs_rtbuf_get(m,t,b,i,p) (ENOSYS)
146# define xfs_verify_rtbno(m, r) (false)
147# define xfs_rtalloc_extent_is_free(m,t,s,l,i) (ENOSYS)
148static inline int
149xfs_rtmount_init(
150 xfs_mount_t *mp)
151{
152 if (mp->m_sb.sb_rblocks == 0)
153 return 0;
154
155 xfs_warn(mp, "Not built with CONFIG_XFS_RT");
156 return -ENOSYS;
157}
158# define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
159# define xfs_rtunmount_inodes(m)
160#endif
161
162#endif
163