53 lines
1.9 KiB
C
53 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BTRFS_RELOCATION_H
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#define BTRFS_RELOCATION_H
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#include <linux/types.h>
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struct extent_buffer;
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struct btrfs_fs_info;
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struct btrfs_root;
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struct btrfs_trans_handle;
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struct btrfs_ordered_extent;
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struct btrfs_pending_snapshot;
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static inline bool should_relocate_using_remap_tree(const struct btrfs_block_group *bg)
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{
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if (!btrfs_fs_incompat(bg->fs_info, REMAP_TREE))
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return false;
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if (bg->flags & (BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA_REMAP))
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return false;
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return true;
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}
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int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start,
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bool verbose);
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int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root);
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int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
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struct btrfs_root *root);
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int btrfs_recover_relocation(struct btrfs_fs_info *fs_info);
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int btrfs_reloc_clone_csums(struct btrfs_ordered_extent *ordered);
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int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
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struct btrfs_root *root,
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const struct extent_buffer *buf,
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struct extent_buffer *cow);
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void btrfs_reloc_pre_snapshot(struct btrfs_pending_snapshot *pending,
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u64 *bytes_to_reserve);
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int btrfs_reloc_post_snapshot(struct btrfs_trans_handle *trans,
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struct btrfs_pending_snapshot *pending);
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int btrfs_should_cancel_balance(const struct btrfs_fs_info *fs_info);
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struct btrfs_root *find_reloc_root(struct btrfs_fs_info *fs_info, u64 bytenr);
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bool btrfs_should_ignore_reloc_root(const struct btrfs_root *root);
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u64 btrfs_get_reloc_bg_bytenr(const struct btrfs_fs_info *fs_info);
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int btrfs_translate_remap(struct btrfs_fs_info *fs_info, u64 *logical, u64 *length);
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int btrfs_remove_extent_from_remap_tree(struct btrfs_trans_handle *trans,
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struct btrfs_path *path,
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u64 bytenr, u64 num_bytes);
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int btrfs_last_identity_remap_gone(struct btrfs_chunk_map *chunk_map,
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struct btrfs_block_group *bg);
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#endif
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