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167
struct btrfs_delayed_ref_head *
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168
btrfs_find_delayed_ref_head(struct btrfs_trans_handle *trans, u64 bytenr);
171
u64 bytenr, u64 num_bytes, u64 orig_parent,
172
u64 parent, u64 orig_ref_root, u64 ref_root,
175
169
int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
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struct btrfs_delayed_ref_head *head);
177
171
int btrfs_find_ref_cluster(struct btrfs_trans_handle *trans,