BTRFS_MAX_XATTR_SIZE
if (name_len + data_len > BTRFS_MAX_XATTR_SIZE(root->fs_info))
BTRFS_MAX_XATTR_SIZE(root->fs_info))) {
if (unlikely(name_len + data_len > BTRFS_MAX_XATTR_SIZE(fs_info))) {
BTRFS_MAX_XATTR_SIZE(fs_info));
if (name_len + size > BTRFS_MAX_XATTR_SIZE(root->fs_info))