fs/btrfs/delayed-ref.c

500 int btrfs_delayed_ref_lock(struct btrfs_delayed_ref_root *delayed_refs,
503 	lockdep_assert_held(&delayed_refs->lock);
508 	spin_unlock(&delayed_refs->lock);
511 	spin_lock(&delayed_refs->lock);
522 				    struct btrfs_delayed_ref_root *delayed_refs,
532 	atomic_dec(&delayed_refs->num_entries);
537 		      struct btrfs_delayed_ref_root *delayed_refs,
566 		drop_delayed_ref(fs_info, delayed_refs, head, next);
569 			drop_delayed_ref(fs_info, delayed_refs, head, ref);
584 			      struct btrfs_delayed_ref_root *delayed_refs,
607 		if (merge_ref(fs_info, delayed_refs, head, ref, seq))
628 		struct btrfs_delayed_ref_root *delayed_refs)
632 	lockdep_assert_held(&delayed_refs->lock);
634 	head = find_ref_head(delayed_refs, delayed_refs->run_delayed_start,
636 	if (!head && delayed_refs->run_delayed_start != 0) {
637 		delayed_refs->run_delayed_start = 0;
638 		head = find_first_ref_head(delayed_refs);
648 			if (delayed_refs->run_delayed_start == 0)
650 			delayed_refs->run_delayed_start = 0;
658 	WARN_ON(delayed_refs->num_heads_ready == 0);
659 	delayed_refs->num_heads_ready--;
660 	delayed_refs->run_delayed_start = head->bytenr +
665 void btrfs_delete_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
668 	lockdep_assert_held(&delayed_refs->lock);
671 	rb_erase_cached(&head->href_node, &delayed_refs->href_root);
673 	atomic_dec(&delayed_refs->num_entries);
674 	delayed_refs->num_heads--;
676 		delayed_refs->num_heads_ready--;
690 	struct btrfs_delayed_ref_root *root = &trans->transaction->delayed_refs;
743 	struct btrfs_delayed_ref_root *delayed_refs =
744 		&trans->transaction->delayed_refs;
818 			delayed_refs->pending_csums -= existing->num_bytes;
822 			delayed_refs->pending_csums += existing->num_bytes;
910 	struct btrfs_delayed_ref_root *delayed_refs;
913 	delayed_refs = &trans->transaction->delayed_refs;
918 					delayed_refs, qrecord))
926 	existing = htree_insert(&delayed_refs->href_root,
944 			delayed_refs->pending_csums += head_ref->num_bytes;
949 		delayed_refs->num_heads++;
950 		delayed_refs->num_heads_ready++;
951 		atomic_inc(&delayed_refs->num_entries);
1065 	struct btrfs_delayed_ref_root *delayed_refs;
1116 	delayed_refs = &trans->transaction->delayed_refs;
1117 	spin_lock(&delayed_refs->lock);
1127 	spin_unlock(&delayed_refs->lock);
1157 	struct btrfs_delayed_ref_root *delayed_refs;
1207 	delayed_refs = &trans->transaction->delayed_refs;
1208 	spin_lock(&delayed_refs->lock);
1218 	spin_unlock(&delayed_refs->lock);
1243 	struct btrfs_delayed_ref_root *delayed_refs;
1253 	delayed_refs = &trans->transaction->delayed_refs;
1254 	spin_lock(&delayed_refs->lock);
1259 	spin_unlock(&delayed_refs->lock);
1293 btrfs_find_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs, u64 bytenr)
1295 	lockdep_assert_held(&delayed_refs->lock);
1297 	return find_ref_head(delayed_refs, bytenr, false);