| 1 | // SPDX-License-Identifier: GPL-2.0+ |
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| 2 | /* |
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| 3 | * Copyright (C) 2017 Oracle. All Rights Reserved. |
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| 4 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
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| 5 | */ |
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| 6 | #ifndef __XFS_FSMAP_H__ |
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| 7 | #define __XFS_FSMAP_H__ |
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| 8 | |
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| 9 | struct fsmap; |
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| 10 | struct fsmap_head; |
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| 11 | |
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| 12 | /* internal fsmap representation */ |
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| 13 | struct xfs_fsmap { |
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| 14 | dev_t fmr_device; /* device id */ |
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| 15 | uint32_t fmr_flags; /* mapping flags */ |
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| 16 | uint64_t fmr_physical; /* device offset of segment */ |
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| 17 | uint64_t fmr_owner; /* owner id */ |
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| 18 | xfs_fileoff_t fmr_offset; /* file offset of segment */ |
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| 19 | xfs_filblks_t fmr_length; /* length of segment, blocks */ |
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| 20 | }; |
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| 21 | |
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| 22 | struct xfs_fsmap_head { |
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| 23 | uint32_t fmh_iflags; /* control flags */ |
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| 24 | uint32_t fmh_oflags; /* output flags */ |
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| 25 | unsigned int fmh_count; /* # of entries in array incl. input */ |
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| 26 | unsigned int fmh_entries; /* # of entries filled in (output). */ |
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| 27 | |
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| 28 | struct xfs_fsmap fmh_keys[2]; /* low and high keys */ |
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| 29 | }; |
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| 30 | |
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| 31 | /* internal fsmap record format */ |
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| 32 | struct xfs_fsmap_irec { |
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| 33 | xfs_daddr_t start_daddr; |
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| 34 | xfs_daddr_t len_daddr; |
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| 35 | uint64_t owner; /* extent owner */ |
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| 36 | uint64_t offset; /* offset within the owner */ |
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| 37 | unsigned int rm_flags; /* rmap state flags */ |
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| 38 | |
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| 39 | /* |
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| 40 | * rmapbt startblock corresponding to start_daddr, if the record came |
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| 41 | * from an rmap btree. |
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| 42 | */ |
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| 43 | xfs_agblock_t rec_key; |
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| 44 | }; |
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| 45 | |
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| 46 | int xfs_ioc_getfsmap(struct xfs_inode *ip, struct fsmap_head __user *arg); |
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| 47 | |
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| 48 | #endif /* __XFS_FSMAP_H__ */ |
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| 49 | |
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