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https://github.com/torvalds/linux
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f51228e1ba
It does not make sense for the single caller to have the responsability to lock the relocation mutex before calling the function and then have the function to assert the lock is held. As this is a function in relocation.c, move the locking details into it. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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(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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