| 1 |
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| 2 |
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| 3 | #ifndef BTRFS_RELOCATION_H
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| 4 | #define BTRFS_RELOCATION_H
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| 5 |
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| 6 | #include <linux/types.h>
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| 7 |
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| 8 | struct extent_buffer;
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| 9 | struct btrfs_fs_info;
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| 10 | struct btrfs_root;
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| 11 | struct btrfs_trans_handle;
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| 12 | struct btrfs_ordered_extent;
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| 13 | struct btrfs_pending_snapshot;
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| 14 |
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| 15 | static inline bool should_relocate_using_remap_tree(const struct btrfs_block_group *bg)
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| 16 | {
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| 17 | if (!btrfs_fs_incompat(bg->fs_info, REMAP_TREE))
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| 18 | return false;
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| 19 |
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| 20 | if (bg->flags & (BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA_REMAP))
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| 21 | return false;
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| 22 |
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| 23 | return true;
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| 24 | }
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| 25 |
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| 26 | int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start,
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| 27 | bool verbose);
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| 28 | int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root);
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| 29 | int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
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| 30 | struct btrfs_root *root);
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| 31 | int btrfs_recover_relocation(struct btrfs_fs_info *fs_info);
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| 32 | int btrfs_reloc_clone_csums(struct btrfs_ordered_extent *ordered);
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| 33 | int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
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| 34 | struct btrfs_root *root,
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| 35 | const struct extent_buffer *buf,
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| 36 | struct extent_buffer *cow);
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| 37 | void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending,
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| 38 | u64 *bytes_to_reserve);
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| 39 | int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
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| 40 | struct btrfs_pending_snapshot *pending);
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| 41 | int btrfs_should_cancel_balance(const struct btrfs_fs_info *fs_info);
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| 42 | struct btrfs_root *find_reloc_root(struct btrfs_fs_info *fs_info, u64 bytenr);
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| 43 | bool btrfs_should_ignore_reloc_root(const struct btrfs_root *root);
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| 44 | u64 btrfs_get_reloc_bg_bytenr(struct btrfs_fs_info *fs_info);
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| 45 | int btrfs_translate_remap(struct btrfs_fs_info *fs_info, u64 *logical, u64 *length);
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| 46 | int btrfs_remove_extent_from_remap_tree(struct btrfs_trans_handle *trans,
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| 47 | struct btrfs_path *path,
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| 48 | u64 bytenr, u64 num_bytes);
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| 49 | int btrfs_last_identity_remap_gone(struct btrfs_chunk_map *chunk_map,
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| 50 | struct btrfs_block_group *bg);
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| 51 |
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| 52 | #endif
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