Btrfs: fixup error path in __btrfs_inc_extent_ref (30d133fc) · Commits · 戴 / test

When we fail to add a reference after a non-inline insertion by some reasons, eg. ENOSPC, we'll abort the transaction, but we don't return this error to the caller who has to walk around again to find something wrong, that's unnecessary. Also fixup other error paths to keep it simple. Signed-off-by:

Liu Bo <bo.li.liu@oracle.com> Signed-off-by:

Josef Bacik <jbacik@fusionio.com> Signed-off-by:

Chris Mason <chris.mason@fusionio.com>

fs/btrfs/extent-tree.c

+2 −8

Original line number	Diff line number	Diff line
		@@ -1979,7 +1979,6 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
		struct btrfs_extent_item *item;
		u64 refs;
		int ret;
		int err = 0;

		path = btrfs_alloc_path();
		if (!path)
		@@ -1992,13 +1991,8 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
		path, bytenr, num_bytes, parent,
		root_objectid, owner, offset,
		refs_to_add, extent_op);
		if (ret == 0)
		goto out;

		if (ret != -EAGAIN) {
		err = ret;
		if (ret != -EAGAIN)
		goto out;
		}

		leaf = path->nodes[0];
		item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);
		@@ -2021,7 +2015,7 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
		btrfs_abort_transaction(trans, root, ret);
		out:
		btrfs_free_path(path);
		return err;
		return ret;
		}

		static int run_delayed_data_ref(struct btrfs_trans_handle *trans,

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