projects / thirdparty / xfsprogs-dev.git / blame
| Commit | Line | Data |
|---|---|---|
| a8616431 DW |
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_RTBITMAP_H__ | |
| 7 | #define __XFS_RTBITMAP_H__ | |
| 8 | ||
| 9 | /* | |
| 10 | * XXX: Most of the realtime allocation functions deal in units of realtime | |
| 11 | * extents, not realtime blocks. This looks funny when paired with the type | |
| 12 | * name and screams for a larger cleanup. | |
| 13 | */ | |
| 14 | struct xfs_rtalloc_rec { | |
| 15 | xfs_rtblock_t ar_startext; | |
| 16 | xfs_rtblock_t ar_extcount; | |
| 17 | }; | |
| 18 | ||
| 19 | typedef int (*xfs_rtalloc_query_range_fn)( | |
| 20 | struct xfs_mount *mp, | |
| 21 | struct xfs_trans *tp, | |
| 22 | const struct xfs_rtalloc_rec *rec, | |
| 23 | void *priv); | |
| 24 | ||
| 25 | #ifdef CONFIG_XFS_RT | |
| 26 | int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp, | |
| 75986bcb | 27 | xfs_fileoff_t block, int issum, struct xfs_buf **bpp); |
| a8616431 | 28 | int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp, |
| 73b5e770 | 29 | xfs_rtblock_t start, xfs_rtxlen_t len, int val, |
| a8616431 DW |
30 | xfs_rtblock_t *new, int *stat); |
| 31 | int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp, | |
| 32 | xfs_rtblock_t start, xfs_rtblock_t limit, | |
| 33 | xfs_rtblock_t *rtblock); | |
| 34 | int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp, | |
| 35 | xfs_rtblock_t start, xfs_rtblock_t limit, | |
| 36 | xfs_rtblock_t *rtblock); | |
| 37 | int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp, | |
| 73b5e770 | 38 | xfs_rtblock_t start, xfs_rtxlen_t len, int val); |
| a8616431 | 39 | int xfs_rtmodify_summary_int(struct xfs_mount *mp, struct xfs_trans *tp, |
| 75986bcb DW |
40 | int log, xfs_fileoff_t bbno, int delta, |
| 41 | struct xfs_buf **rbpp, xfs_fileoff_t *rsb, | |
| a8616431 DW |
42 | xfs_suminfo_t *sum); |
| 43 | int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log, | |
| 75986bcb DW |
44 | xfs_fileoff_t bbno, int delta, struct xfs_buf **rbpp, |
| 45 | xfs_fileoff_t *rsb); | |
| a8616431 | 46 | int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp, |
| 73b5e770 | 47 | xfs_rtblock_t start, xfs_rtxlen_t len, |
| 75986bcb | 48 | struct xfs_buf **rbpp, xfs_fileoff_t *rsb); |
| a8616431 DW |
49 | int xfs_rtalloc_query_range(struct xfs_mount *mp, struct xfs_trans *tp, |
| 50 | const struct xfs_rtalloc_rec *low_rec, | |
| 51 | const struct xfs_rtalloc_rec *high_rec, | |
| 52 | xfs_rtalloc_query_range_fn fn, void *priv); | |
| 53 | int xfs_rtalloc_query_all(struct xfs_mount *mp, struct xfs_trans *tp, | |
| 54 | xfs_rtalloc_query_range_fn fn, | |
| 55 | void *priv); | |
| a8616431 | 56 | int xfs_rtalloc_extent_is_free(struct xfs_mount *mp, struct xfs_trans *tp, |
| 73b5e770 | 57 | xfs_rtblock_t start, xfs_rtxlen_t len, |
| a8616431 DW |
58 | bool *is_free); |
| 59 | /* | |
| 60 | * Free an extent in the realtime subvolume. Length is expressed in | |
| 61 | * realtime extents, as is the block number. | |
| 62 | */ | |
| 63 | int /* error */ | |
| 64 | xfs_rtfree_extent( | |
| 65 | struct xfs_trans *tp, /* transaction pointer */ | |
| 66 | xfs_rtblock_t bno, /* starting block number to free */ | |
| 73b5e770 | 67 | xfs_rtxlen_t len); /* length of extent freed */ |
| a8616431 DW |
68 | |
| 69 | /* Same as above, but in units of rt blocks. */ | |
| 70 | int xfs_rtfree_blocks(struct xfs_trans *tp, xfs_fsblock_t rtbno, | |
| 71 | xfs_filblks_t rtlen); | |
| 72 | #else /* CONFIG_XFS_RT */ | |
| 73 | # define xfs_rtfree_extent(t,b,l) (-ENOSYS) | |
| 74 | # define xfs_rtfree_blocks(t,rb,rl) (-ENOSYS) | |
| 75 | # define xfs_rtalloc_query_range(m,t,l,h,f,p) (-ENOSYS) | |
| 76 | # define xfs_rtalloc_query_all(m,t,f,p) (-ENOSYS) | |
| 77 | # define xfs_rtbuf_get(m,t,b,i,p) (-ENOSYS) | |
| 78 | # define xfs_rtalloc_extent_is_free(m,t,s,l,i) (-ENOSYS) | |
| 79 | #endif /* CONFIG_XFS_RT */ | |
| 80 | ||
| 81 | #endif /* __XFS_RTBITMAP_H__ */ |