xfs_rtalloc.h (695c312ec5a68e4373d063ee649c7b925ffb5da7) xfs_rtalloc.h (1a6d63f2418c61f0eef4581bee8e93b9eddc858b)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#ifndef __XFS_RTALLOC_H__
7#define __XFS_RTALLOC_H__
8
9/* kernel only definitions and functions */
10
11struct xfs_mount;
12struct xfs_trans;
13
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
5 */
6#ifndef __XFS_RTALLOC_H__
7#define __XFS_RTALLOC_H__
8
9/* kernel only definitions and functions */
10
11struct xfs_mount;
12struct xfs_trans;
13
14/*
15 * XXX: Most of the realtime allocation functions deal in units of realtime
16 * extents, not realtime blocks. This looks funny when paired with the type
17 * name and screams for a larger cleanup.
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_mount *mp,
26 struct xfs_trans *tp,
27 const struct xfs_rtalloc_rec *rec,
28 void *priv);
29
30#ifdef CONFIG_XFS_RT
31/*
32 * Function prototypes for exported functions.
33 */
34
35/*
36 * Allocate an extent in the realtime subvolume, with the usual allocation
37 * parameters. The length units are all in realtime extents, as is the

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43 xfs_rtblock_t bno, /* starting block number to allocate */
44 xfs_extlen_t minlen, /* minimum length to allocate */
45 xfs_extlen_t maxlen, /* maximum length to allocate */
46 xfs_extlen_t *len, /* out: actual length allocated */
47 int wasdel, /* was a delayed allocation extent */
48 xfs_extlen_t prod, /* extent product factor */
49 xfs_rtblock_t *rtblock); /* out: start block allocated */
50
14#ifdef CONFIG_XFS_RT
15/*
16 * Function prototypes for exported functions.
17 */
18
19/*
20 * Allocate an extent in the realtime subvolume, with the usual allocation
21 * parameters. The length units are all in realtime extents, as is the

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27 xfs_rtblock_t bno, /* starting block number to allocate */
28 xfs_extlen_t minlen, /* minimum length to allocate */
29 xfs_extlen_t maxlen, /* maximum length to allocate */
30 xfs_extlen_t *len, /* out: actual length allocated */
31 int wasdel, /* was a delayed allocation extent */
32 xfs_extlen_t prod, /* extent product factor */
33 xfs_rtblock_t *rtblock); /* out: start block allocated */
34
51/*
52 * Free an extent in the realtime subvolume. Length is expressed in
53 * realtime extents, as is the block number.
54 */
55int /* error */
56xfs_rtfree_extent(
57 struct xfs_trans *tp, /* transaction pointer */
58 xfs_rtblock_t bno, /* starting block number to free */
59 xfs_extlen_t len); /* length of extent freed */
60
35
61/* Same as above, but in units of rt blocks. */
62int xfs_rtfree_blocks(struct xfs_trans *tp, xfs_fsblock_t rtbno,
63 xfs_filblks_t rtlen);
64
65/*
66 * Initialize realtime fields in the mount structure.
67 */
68int /* error */
69xfs_rtmount_init(
70 struct xfs_mount *mp); /* file system mount structure */
71void
72xfs_rtunmount_inodes(

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97/*
98 * Grow the realtime area of the filesystem.
99 */
100int
101xfs_growfs_rt(
102 struct xfs_mount *mp, /* file system mount structure */
103 xfs_growfs_rt_t *in); /* user supplied growfs struct */
104
36/*
37 * Initialize realtime fields in the mount structure.
38 */
39int /* error */
40xfs_rtmount_init(
41 struct xfs_mount *mp); /* file system mount structure */
42void
43xfs_rtunmount_inodes(

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68/*
69 * Grow the realtime area of the filesystem.
70 */
71int
72xfs_growfs_rt(
73 struct xfs_mount *mp, /* file system mount structure */
74 xfs_growfs_rt_t *in); /* user supplied growfs struct */
75
105/*
106 * From xfs_rtbitmap.c
107 */
108int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp,
109 xfs_rtblock_t block, int issum, struct xfs_buf **bpp);
110int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp,
111 xfs_rtblock_t start, xfs_extlen_t len, int val,
112 xfs_rtblock_t *new, int *stat);
113int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp,
114 xfs_rtblock_t start, xfs_rtblock_t limit,
115 xfs_rtblock_t *rtblock);
116int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp,
117 xfs_rtblock_t start, xfs_rtblock_t limit,
118 xfs_rtblock_t *rtblock);
119int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp,
120 xfs_rtblock_t start, xfs_extlen_t len, int val);
121int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp,
122 int log, xfs_rtblock_t bbno, int delta,
123 struct xfs_buf **rbpp, xfs_fsblock_t *rsb,
124 xfs_suminfo_t *sum);
125int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log,
126 xfs_rtblock_t bbno, int delta, struct xfs_buf **rbpp,
127 xfs_fsblock_t *rsb);
128int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp,
129 xfs_rtblock_t start, xfs_extlen_t len,
130 struct xfs_buf **rbpp, xfs_fsblock_t *rsb);
131int xfs_rtalloc_query_range(struct xfs_mount *mp, struct xfs_trans *tp,
132 const struct xfs_rtalloc_rec *low_rec,
133 const struct xfs_rtalloc_rec *high_rec,
134 xfs_rtalloc_query_range_fn fn, void *priv);
135int xfs_rtalloc_query_all(struct xfs_mount *mp, struct xfs_trans *tp,
136 xfs_rtalloc_query_range_fn fn,
137 void *priv);
138bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
139int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp,
140 xfs_rtblock_t start, xfs_extlen_t len,
141 bool *is_free);
142int xfs_rtalloc_reinit_frextents(struct xfs_mount *mp);
143#else
144# define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb) (-ENOSYS)
76int xfs_rtalloc_reinit_frextents(struct xfs_mount *mp);
77#else
78# define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb) (-ENOSYS)
145# define xfs_rtfree_extent(t,b,l) (-ENOSYS)
146# define xfs_rtfree_blocks(t,rb,rl) (-ENOSYS)
147# define xfs_rtpick_extent(m,t,l,rb) (-ENOSYS)
148# define xfs_growfs_rt(mp,in) (-ENOSYS)
79# define xfs_rtpick_extent(m,t,l,rb) (-ENOSYS)
80# define xfs_growfs_rt(mp,in) (-ENOSYS)
149# define xfs_rtalloc_query_range(m,t,l,h,f,p) (-ENOSYS)
150# define xfs_rtalloc_query_all(m,t,f,p) (-ENOSYS)
151# define xfs_rtbuf_get(m,t,b,i,p) (-ENOSYS)
152# define xfs_verify_rtbno(m, r) (false)
153# define xfs_rtalloc_extent_is_free(m,t,s,l,i) (-ENOSYS)
154# define xfs_rtalloc_reinit_frextents(m) (0)
155static inline int /* error */
156xfs_rtmount_init(
157 xfs_mount_t *mp) /* file system mount structure */
158{
159 if (mp->m_sb.sb_rblocks == 0)
160 return 0;
161
162 xfs_warn(mp, "Not built with CONFIG_XFS_RT");
163 return -ENOSYS;
164}
165# define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (-ENOSYS))
166# define xfs_rtunmount_inodes(m)
167#endif /* CONFIG_XFS_RT */
168
169#endif /* __XFS_RTALLOC_H__ */
81# define xfs_rtalloc_reinit_frextents(m) (0)
82static inline int /* error */
83xfs_rtmount_init(
84 xfs_mount_t *mp) /* file system mount structure */
85{
86 if (mp->m_sb.sb_rblocks == 0)
87 return 0;
88
89 xfs_warn(mp, "Not built with CONFIG_XFS_RT");
90 return -ENOSYS;
91}
92# define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (-ENOSYS))
93# define xfs_rtunmount_inodes(m)
94#endif /* CONFIG_XFS_RT */
95
96#endif /* __XFS_RTALLOC_H__ */