+static int ocfs2_duplicate_inline_data(struct inode *s_inode,
+ struct buffer_head *s_bh,
+ struct inode *t_inode,
+ struct buffer_head *t_bh)
+{
+ int ret;
+ handle_t *handle;
+ struct ocfs2_super *osb = OCFS2_SB(s_inode->i_sb);
+ struct ocfs2_dinode *s_di = (struct ocfs2_dinode *)s_bh->b_data;
+ struct ocfs2_dinode *t_di = (struct ocfs2_dinode *)t_bh->b_data;
+
+ BUG_ON(!(OCFS2_I(s_inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL));
+
+ handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
+ if (IS_ERR(handle)) {
+ ret = PTR_ERR(handle);
+ mlog_errno(ret);
+ goto out;
+ }
+
+ ret = ocfs2_journal_access_di(handle, INODE_CACHE(t_inode), t_bh,
+ OCFS2_JOURNAL_ACCESS_WRITE);
+ if (ret) {
+ mlog_errno(ret);
+ goto out_commit;
+ }
+
+ t_di->id2.i_data.id_count = s_di->id2.i_data.id_count;
+ memcpy(t_di->id2.i_data.id_data, s_di->id2.i_data.id_data,
+ le16_to_cpu(s_di->id2.i_data.id_count));
+ spin_lock(&OCFS2_I(t_inode)->ip_lock);
+ OCFS2_I(t_inode)->ip_dyn_features |= OCFS2_INLINE_DATA_FL;
+ t_di->i_dyn_features = cpu_to_le16(OCFS2_I(t_inode)->ip_dyn_features);
+ spin_unlock(&OCFS2_I(t_inode)->ip_lock);
+
+ ocfs2_journal_dirty(handle, t_bh);
+
+out_commit:
+ ocfs2_commit_trans(osb, handle);
+out:
+ return ret;
+}
+