static void __ocfs2_init_extent_tree(struct ocfs2_extent_tree *et,
                                     struct inode *inode,
                                     struct buffer_head *bh,
+                                    ocfs2_journal_access_func access,
                                     void *obj,
                                     struct ocfs2_extent_tree_operations *ops)
 {
        et->et_ops = ops;
        et->et_root_bh = bh;
+       et->et_root_journal_access = access;
        if (!obj)
                obj = (void *)bh->b_data;
        et->et_object = obj;
                                   struct inode *inode,
                                   struct buffer_head *bh)
 {
-       __ocfs2_init_extent_tree(et, inode, bh, NULL, &ocfs2_dinode_et_ops);
+       __ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access_di,
+                                NULL, &ocfs2_dinode_et_ops);
 }
 
 void ocfs2_init_xattr_tree_extent_tree(struct ocfs2_extent_tree *et,
                                       struct inode *inode,
                                       struct buffer_head *bh)
 {
-       __ocfs2_init_extent_tree(et, inode, bh, NULL,
-                                &ocfs2_xattr_tree_et_ops);
+       __ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access_xb,
+                                NULL, &ocfs2_xattr_tree_et_ops);
 }
 
 void ocfs2_init_xattr_value_extent_tree(struct ocfs2_extent_tree *et,
                                        struct buffer_head *bh,
                                        struct ocfs2_xattr_value_root *xv)
 {
-       __ocfs2_init_extent_tree(et, inode, bh, xv,
+       __ocfs2_init_extent_tree(et, inode, bh, ocfs2_journal_access, xv,
                                 &ocfs2_xattr_value_et_ops);
 }
 
        et->et_ops->eo_update_clusters(inode, et, clusters);
 }
 
+static inline int ocfs2_et_root_journal_access(handle_t *handle,
+                                              struct inode *inode,
+                                              struct ocfs2_extent_tree *et,
+                                              int type)
+{
+       return et->et_root_journal_access(handle, inode, et->et_root_bh,
+                                         type);
+}
+
 static inline int ocfs2_et_insert_check(struct inode *inode,
                                        struct ocfs2_extent_tree *et,
                                        struct ocfs2_extent_rec *rec)
 #define OCFS2_MAX_PATH_DEPTH   5
 
 struct ocfs2_path {
-       int                     p_tree_depth;
-       struct ocfs2_path_item  p_node[OCFS2_MAX_PATH_DEPTH];
+       int                             p_tree_depth;
+       ocfs2_journal_access_func       p_root_access;
+       struct ocfs2_path_item          p_node[OCFS2_MAX_PATH_DEPTH];
 };
 
 #define path_root_bh(_path) ((_path)->p_node[0].bh)
 #define path_root_el(_path) ((_path)->p_node[0].el)
+#define path_root_access(_path)((_path)->p_root_access)
 #define path_leaf_bh(_path) ((_path)->p_node[(_path)->p_tree_depth].bh)
 #define path_leaf_el(_path) ((_path)->p_node[(_path)->p_tree_depth].el)
 #define path_num_items(_path) ((_path)->p_tree_depth + 1)
         */
        if (keep_root)
                depth = le16_to_cpu(path_root_el(path)->l_tree_depth);
+       else
+               path_root_access(path) = NULL;
 
        path->p_tree_depth = depth;
 }
 
        BUG_ON(path_root_bh(dest) != path_root_bh(src));
        BUG_ON(path_root_el(dest) != path_root_el(src));
+       BUG_ON(path_root_access(dest) != path_root_access(src));
 
        ocfs2_reinit_path(dest, 1);
 
        int i;
 
        BUG_ON(path_root_bh(dest) != path_root_bh(src));
+       BUG_ON(path_root_access(dest) != path_root_access(src));
 
        for(i = 1; i < OCFS2_MAX_PATH_DEPTH; i++) {
                brelse(dest->p_node[i].bh);
 }
 
 static struct ocfs2_path *ocfs2_new_path(struct buffer_head *root_bh,
-                                        struct ocfs2_extent_list *root_el)
+                                        struct ocfs2_extent_list *root_el,
+                                        ocfs2_journal_access_func access)
 {
        struct ocfs2_path *path;
 
                get_bh(root_bh);
                path_root_bh(path) = root_bh;
                path_root_el(path) = root_el;
+               path_root_access(path) = access;
        }
 
        return path;
 
 static struct ocfs2_path *ocfs2_new_path_from_path(struct ocfs2_path *path)
 {
-       return ocfs2_new_path(path_root_bh(path), path_root_el(path));
+       return ocfs2_new_path(path_root_bh(path), path_root_el(path),
+                             path_root_access(path));
 }
 
 static struct ocfs2_path *ocfs2_new_path_from_et(struct ocfs2_extent_tree *et)
 {
-       return ocfs2_new_path(et->et_root_bh, et->et_root_el);
+       return ocfs2_new_path(et->et_root_bh, et->et_root_el,
+                             et->et_root_journal_access);
+}
+
+/*
+ * Journal the buffer at depth idx.  All idx>0 are extent_blocks,
+ * otherwise it's the root_access function.
+ *
+ * I don't like the way this function's name looks next to
+ * ocfs2_journal_access_path(), but I don't have a better one.
+ */
+static int ocfs2_path_bh_journal_access(handle_t *handle,
+                                       struct inode *inode,
+                                       struct ocfs2_path *path,
+                                       int idx)
+{
+       ocfs2_journal_access_func access = path_root_access(path);
+
+       if (!access)
+               access = ocfs2_journal_access;
+
+       if (idx)
+               access = ocfs2_journal_access_eb;
+
+       return access(handle, inode, path->p_node[idx].bh,
+                     OCFS2_JOURNAL_ACCESS_WRITE);
 }
 
 /*
                goto out;
 
        for(i = 0; i < path_num_items(path); i++) {
-               ret = ocfs2_journal_access(handle, inode, path->p_node[i].bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode, path, i);
                if (ret < 0) {
                        mlog_errno(ret);
                        goto out;
         * local to this block.
         */
        rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &eb->h_check);
-       if (rc)
+       if (rc) {
+               mlog(ML_ERROR, "Checksum failed for extent block %llu\n",
+                    (unsigned long long)bh->b_blocknr);
                return rc;
+       }
 
        /*
         * Errors after here are fatal.
                        }
                        ocfs2_set_new_buffer_uptodate(inode, bhs[i]);
 
-                       status = ocfs2_journal_access(handle, inode, bhs[i],
-                                                     OCFS2_JOURNAL_ACCESS_CREATE);
+                       status = ocfs2_journal_access_eb(handle, inode, bhs[i],
+                                                        OCFS2_JOURNAL_ACCESS_CREATE);
                        if (status < 0) {
                                mlog_errno(status);
                                goto bail;
                BUG_ON(!OCFS2_IS_VALID_EXTENT_BLOCK(eb));
                eb_el = &eb->h_list;
 
-               status = ocfs2_journal_access(handle, inode, bh,
-                                             OCFS2_JOURNAL_ACCESS_CREATE);
+               status = ocfs2_journal_access_eb(handle, inode, bh,
+                                                OCFS2_JOURNAL_ACCESS_CREATE);
                if (status < 0) {
                        mlog_errno(status);
                        goto bail;
         * journal_dirty erroring as it won't unless we've aborted the
         * handle (in which case we would never be here) so reserving
         * the write with journal_access is all we need to do. */
-       status = ocfs2_journal_access(handle, inode, *last_eb_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_eb(handle, inode, *last_eb_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        }
-       status = ocfs2_journal_access(handle, inode, et->et_root_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_et_root_journal_access(handle, inode, et,
+                                             OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        }
        if (eb_bh) {
-               status = ocfs2_journal_access(handle, inode, eb_bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_eb(handle, inode, eb_bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto bail;
        eb_el = &eb->h_list;
        root_el = et->et_root_el;
 
-       status = ocfs2_journal_access(handle, inode, new_eb_bh,
-                                     OCFS2_JOURNAL_ACCESS_CREATE);
+       status = ocfs2_journal_access_eb(handle, inode, new_eb_bh,
+                                        OCFS2_JOURNAL_ACCESS_CREATE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
                goto bail;
        }
 
-       status = ocfs2_journal_access(handle, inode, et->et_root_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_et_root_journal_access(handle, inode, et,
+                                             OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        root_bh = left_path->p_node[subtree_index].bh;
        BUG_ON(root_bh != right_path->p_node[subtree_index].bh);
 
-       ret = ocfs2_journal_access(handle, inode, root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+                                          subtree_index);
        if (ret) {
                mlog_errno(ret);
                goto out;
        }
 
        for(i = subtree_index + 1; i < path_num_items(right_path); i++) {
-               ret = ocfs2_journal_access(handle, inode,
-                                          right_path->p_node[i].bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                  right_path, i);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
                }
 
-               ret = ocfs2_journal_access(handle, inode,
-                                          left_path->p_node[i].bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                  left_path, i);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
                        return -EAGAIN;
 
                if (le16_to_cpu(right_leaf_el->l_next_free_rec) > 1) {
-                       ret = ocfs2_journal_access(handle, inode,
-                                                  path_leaf_bh(right_path),
-                                                  OCFS2_JOURNAL_ACCESS_WRITE);
+                       ret = ocfs2_journal_access_eb(handle, inode,
+                                                     path_leaf_bh(right_path),
+                                                     OCFS2_JOURNAL_ACCESS_WRITE);
                        if (ret) {
                                mlog_errno(ret);
                                goto out;
                 * We have to update i_last_eb_blk during the meta
                 * data delete.
                 */
-               ret = ocfs2_journal_access(handle, inode, et_root_bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_et_root_journal_access(handle, inode, et,
+                                                  OCFS2_JOURNAL_ACCESS_WRITE);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
         */
        BUG_ON(right_has_empty && !del_right_subtree);
 
-       ret = ocfs2_journal_access(handle, inode, root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+                                          subtree_index);
        if (ret) {
                mlog_errno(ret);
                goto out;
        }
 
        for(i = subtree_index + 1; i < path_num_items(right_path); i++) {
-               ret = ocfs2_journal_access(handle, inode,
-                                          right_path->p_node[i].bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                  right_path, i);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
                }
 
-               ret = ocfs2_journal_access(handle, inode,
-                                          left_path->p_node[i].bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                  left_path, i);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
 
 static int ocfs2_rotate_rightmost_leaf_left(struct inode *inode,
                                            handle_t *handle,
-                                           struct buffer_head *bh,
-                                           struct ocfs2_extent_list *el)
+                                           struct ocfs2_path *path)
 {
        int ret;
+       struct buffer_head *bh = path_leaf_bh(path);
+       struct ocfs2_extent_list *el = path_leaf_el(path);
 
        if (!ocfs2_is_empty_extent(&el->l_recs[0]))
                return 0;
 
-       ret = ocfs2_journal_access(handle, inode, bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_path_bh_journal_access(handle, inode, path,
+                                          path_num_items(path) - 1);
        if (ret) {
                mlog_errno(ret);
                goto out;
                 * Caller might still want to make changes to the
                 * tree root, so re-add it to the journal here.
                 */
-               ret = ocfs2_journal_access(handle, inode,
-                                          path_root_bh(left_path),
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                  left_path, 0);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
                 * it up front.
                 */
                ret = ocfs2_rotate_rightmost_leaf_left(inode, handle,
-                                                      path_leaf_bh(path),
-                                                      path_leaf_el(path));
+                                                      path);
                if (ret)
                        mlog_errno(ret);
                goto out;
                root_bh = left_path->p_node[subtree_index].bh;
                BUG_ON(root_bh != right_path->p_node[subtree_index].bh);
 
-               ret = ocfs2_journal_access(handle, inode, root_bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+                                                  subtree_index);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
 
                for (i = subtree_index + 1;
                     i < path_num_items(right_path); i++) {
-                       ret = ocfs2_journal_access(handle, inode,
-                                                  right_path->p_node[i].bh,
-                                                  OCFS2_JOURNAL_ACCESS_WRITE);
+                       ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                          right_path, i);
                        if (ret) {
                                mlog_errno(ret);
                                goto out;
                        }
 
-                       ret = ocfs2_journal_access(handle, inode,
-                                                  left_path->p_node[i].bh,
-                                                  OCFS2_JOURNAL_ACCESS_WRITE);
+                       ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                          left_path, i);
                        if (ret) {
                                mlog_errno(ret);
                                goto out;
                right_rec = &el->l_recs[index + 1];
        }
 
-       ret = ocfs2_journal_access(handle, inode, bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_path_bh_journal_access(handle, inode, left_path,
+                                          path_num_items(left_path) - 1);
        if (ret) {
                mlog_errno(ret);
                goto out;
                root_bh = left_path->p_node[subtree_index].bh;
                BUG_ON(root_bh != right_path->p_node[subtree_index].bh);
 
-               ret = ocfs2_journal_access(handle, inode, root_bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_path_bh_journal_access(handle, inode, right_path,
+                                                  subtree_index);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
 
                for (i = subtree_index + 1;
                     i < path_num_items(right_path); i++) {
-                       ret = ocfs2_journal_access(handle, inode,
-                                                  right_path->p_node[i].bh,
-                                                  OCFS2_JOURNAL_ACCESS_WRITE);
+                       ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                          right_path, i);
                        if (ret) {
                                mlog_errno(ret);
                                goto out;
                        }
 
-                       ret = ocfs2_journal_access(handle, inode,
-                                                  left_path->p_node[i].bh,
-                                                  OCFS2_JOURNAL_ACCESS_WRITE);
+                       ret = ocfs2_path_bh_journal_access(handle, inode,
+                                                          left_path, i);
                        if (ret) {
                                mlog_errno(ret);
                                goto out;
                        has_empty_extent = 1;
        }
 
-       ret = ocfs2_journal_access(handle, inode, bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_path_bh_journal_access(handle, inode, left_path,
+                                          path_num_items(left_path) - 1);
        if (ret) {
                mlog_errno(ret);
                goto out;
 
        el = et->et_root_el;
 
-       ret = ocfs2_journal_access(handle, inode, et->et_root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_et_root_journal_access(handle, inode, et,
+                                          OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
                 * ocfs2_rotate_tree_right() might have extended the
                 * transaction without re-journaling our tree root.
                 */
-               ret = ocfs2_journal_access(handle, inode, et->et_root_bh,
-                                          OCFS2_JOURNAL_ACCESS_WRITE);
+               ret = ocfs2_et_root_journal_access(handle, inode, et,
+                                                  OCFS2_JOURNAL_ACCESS_WRITE);
                if (ret) {
                        mlog_errno(ret);
                        goto out;
 
        BUG_ON(num_bits > clusters_to_add);
 
-       /* reserve our write early -- insert_extent may update the inode */
-       status = ocfs2_journal_access(handle, inode, et->et_root_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       /* reserve our write early -- insert_extent may update the tree root */
+       status = ocfs2_et_root_journal_access(handle, inode, et,
+                                             OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
                goto out;
        }
 
-       ret = ocfs2_journal_access(handle, inode, et->et_root_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_et_root_journal_access(handle, inode, et,
+                                          OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
                goto bail;
        }
 
-       status = ocfs2_journal_access(handle, tl_inode, tl_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, tl_inode, tl_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        while (i >= 0) {
                /* Caller has given us at least enough credits to
                 * update the truncate log dinode */
-               status = ocfs2_journal_access(handle, tl_inode, tl_bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_di(handle, tl_inode, tl_bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto bail;
                 * tl_used. */
                tl->tl_used = 0;
 
+               ocfs2_compute_meta_ecc(osb->sb, tl_bh->b_data, &di->i_check);
                status = ocfs2_write_block(osb, tl_bh, tl_inode);
                if (status < 0) {
                        mlog_errno(status);
        }
 
        if (last_eb_bh) {
-               status = ocfs2_journal_access(handle, inode, last_eb_bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_eb(handle, inode, last_eb_bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto bail;
                goto out_unlock;
        }
 
-       ret = ocfs2_journal_access(handle, inode, di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
        new_highest_cpos = ocfs2_clusters_for_bytes(osb->sb,
                                                     i_size_read(inode));
 
-       path = ocfs2_new_path(fe_bh, &di->id2.i_list);
+       path = ocfs2_new_path(fe_bh, &di->id2.i_list,
+                             ocfs2_journal_access_di);
        if (!path) {
                status = -ENOMEM;
                mlog_errno(status);
                goto out;
        }
 
-       ret = ocfs2_journal_access(handle, inode, di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
 
  *
  * ocfs2_extent_tree contains info for the root of the b-tree, it must have a
  * root ocfs2_extent_list and a root_bh so that they can be used in the b-tree
- * functions.
+ * functions.  With metadata ecc, we now call different journal_access
+ * functions for each type of metadata, so it must have the
+ * root_journal_access function.
  * ocfs2_extent_tree_operations abstract the normal operations we do for
  * the root of extent b-tree.
  */
        struct ocfs2_extent_tree_operations     *et_ops;
        struct buffer_head                      *et_root_bh;
        struct ocfs2_extent_list                *et_root_el;
+       ocfs2_journal_access_func               et_root_journal_access;
        void                                    *et_object;
        unsigned int                            et_max_leaf_clusters;
 };
 
                goto out;
        }
 
-       ret = ocfs2_journal_access(handle, inode, wc->w_di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, wc->w_di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                ocfs2_commit_trans(osb, handle);
 
         * We don't want this to fail in ocfs2_write_end(), so do it
         * here.
         */
-       ret = ocfs2_journal_access(handle, inode, wc->w_di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, wc->w_di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out_quota;
 
                       struct inode *new_entry_inode)
 {
        int ret;
+       ocfs2_journal_access_func access = ocfs2_journal_access_db;
 
        /*
         * The same code works fine for both inline-data and extent
-        * based directories, so no need to split this up.
+        * based directories, so no need to split this up.  The only
+        * difference is the journal_access function.
         */
 
-       ret = ocfs2_journal_access(handle, dir, de_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
+               access = ocfs2_journal_access_di;
+
+       ret = access(handle, dir, de_bh, OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
 {
        struct ocfs2_dir_entry *de, *pde;
        int i, status = -ENOENT;
+       ocfs2_journal_access_func access = ocfs2_journal_access_db;
 
        mlog_entry("(0x%p, 0x%p, 0x%p, 0x%p)\n", handle, dir, de_del, bh);
 
+       if (OCFS2_I(dir)->ip_dyn_features & OCFS2_INLINE_DATA_FL)
+               access = ocfs2_journal_access_di;
+
        i = 0;
        pde = NULL;
        de = (struct ocfs2_dir_entry *) first_de;
                        goto bail;
                }
                if (de == de_del)  {
-                       status = ocfs2_journal_access(handle, dir, bh,
-                                                     OCFS2_JOURNAL_ACCESS_WRITE);
+                       status = access(handle, dir, bh,
+                                       OCFS2_JOURNAL_ACCESS_WRITE);
                        if (status < 0) {
                                status = -EIO;
                                mlog_errno(status);
                                goto bail;
                        }
 
-                       status = ocfs2_journal_access(handle, dir, insert_bh,
-                                                     OCFS2_JOURNAL_ACCESS_WRITE);
+                       if (insert_bh == parent_fe_bh)
+                               status = ocfs2_journal_access_di(handle, dir,
+                                                                insert_bh,
+                                                                OCFS2_JOURNAL_ACCESS_WRITE);
+                       else
+                               status = ocfs2_journal_access_db(handle, dir,
+                                                                insert_bh,
+                                                                OCFS2_JOURNAL_ACCESS_WRITE);
                        /* By now the buffer is marked for journaling */
                        offset += le16_to_cpu(de->rec_len);
                        if (le64_to_cpu(de->inode)) {
        struct ocfs2_inline_data *data = &di->id2.i_data;
        unsigned int size = le16_to_cpu(data->id_count);
 
-       ret = ocfs2_journal_access(handle, inode, di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out;
 
        ocfs2_set_new_buffer_uptodate(inode, new_bh);
 
-       status = ocfs2_journal_access(handle, inode, new_bh,
-                                     OCFS2_JOURNAL_ACCESS_CREATE);
+       status = ocfs2_journal_access_db(handle, inode, new_bh,
+                                        OCFS2_JOURNAL_ACCESS_CREATE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
 
        ocfs2_set_new_buffer_uptodate(dir, dirdata_bh);
 
-       ret = ocfs2_journal_access(handle, dir, dirdata_bh,
-                                  OCFS2_JOURNAL_ACCESS_CREATE);
+       ret = ocfs2_journal_access_db(handle, dir, dirdata_bh,
+                                     OCFS2_JOURNAL_ACCESS_CREATE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
         * We let the later dirent insert modify c/mtime - to the user
         * the data hasn't changed.
         */
-       ret = ocfs2_journal_access(handle, dir, di_bh,
-                                  OCFS2_JOURNAL_ACCESS_CREATE);
+       ret = ocfs2_journal_access_di(handle, dir, di_bh,
+                                     OCFS2_JOURNAL_ACCESS_CREATE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
 
        ocfs2_set_new_buffer_uptodate(dir, new_bh);
 
-       status = ocfs2_journal_access(handle, dir, new_bh,
-                                     OCFS2_JOURNAL_ACCESS_CREATE);
+       status = ocfs2_journal_access_db(handle, dir, new_bh,
+                                        OCFS2_JOURNAL_ACCESS_CREATE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
 
                goto out;
        }
 
-       ret = ocfs2_journal_access(handle, inode, bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret) {
                mlog_errno(ret);
                goto out_commit;
                goto out;
        }
 
-       status = ocfs2_journal_access(handle, inode, fe_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, inode, fe_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out_commit;
        /* reserve a write to the file entry early on - that we if we
         * run out of credits in the allocation path, we can still
         * update i_size. */
-       status = ocfs2_journal_access(handle, inode, bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, inode, bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
                goto out;
        }
 
-       ret = ocfs2_journal_access(handle, inode, bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto out_trans;
 
                        goto out;
                }
 
-               status = ocfs2_journal_access(handle, inode, fe_bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_di(handle, inode, fe_bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto out;
        }
 
        /* set the inodes dtime */
-       status = ocfs2_journal_access(handle, inode, di_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, inode, di_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail_commit;
        mlog_entry("(inode %llu)\n",
                   (unsigned long long)OCFS2_I(inode)->ip_blkno);
 
-       status = ocfs2_journal_access(handle, inode, bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, inode, bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
         * local to this block.
         */
        rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &di->i_check);
-       if (rc)
+       if (rc) {
+               mlog(ML_ERROR, "Checksum failed for dinode %llu\n",
+                    (unsigned long long)bh->b_blocknr);
                goto bail;
+       }
 
        /*
         * Errors after here are fatal.
 
        if (replayed)
                ocfs2_bump_recovery_generation(fe);
 
+       ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check);
        status = ocfs2_write_block(osb, bh, journal->j_inode);
        if (status < 0)
                mlog_errno(status);
        osb->slot_recovery_generations[slot_num] =
                                        ocfs2_get_recovery_generation(fe);
 
+       ocfs2_compute_meta_ecc(osb->sb, bh->b_data, &fe->i_check);
        status = ocfs2_write_block(osb, bh, inode);
        if (status < 0)
                mlog_errno(status);
 
 #define OCFS2_JOURNAL_ACCESS_WRITE  1
 #define OCFS2_JOURNAL_ACCESS_UNDO   2
 
+
 /* ocfs2_inode */
 int ocfs2_journal_access_di(handle_t *handle, struct inode *inode,
-                              struct buffer_head *bh, int type);
+                           struct buffer_head *bh, int type);
 /* ocfs2_extent_block */
 int ocfs2_journal_access_eb(handle_t *handle, struct inode *inode,
                            struct buffer_head *bh, int type);
 
 #include "ocfs2.h"
 
 #include "alloc.h"
+#include "blockcheck.h"
 #include "dlmglue.h"
 #include "inode.h"
 #include "journal.h"
        }
        memcpy(alloc_copy, alloc, bh->b_size);
 
-       status = ocfs2_journal_access(handle, local_alloc_inode, bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, local_alloc_inode, bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out_commit;
        alloc = (struct ocfs2_dinode *) alloc_bh->b_data;
        ocfs2_clear_local_alloc(alloc);
 
+       ocfs2_compute_meta_ecc(osb->sb, alloc_bh->b_data, &alloc->i_check);
        status = ocfs2_write_block(osb, alloc_bh, inode);
        if (status < 0)
                mlog_errno(status);
         * delete bits from it! */
        *num_bits = bits_wanted;
 
-       status = ocfs2_journal_access(handle, local_alloc_inode,
-                                     osb->local_alloc_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, local_alloc_inode,
+                                        osb->local_alloc_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        }
        memcpy(alloc_copy, alloc, osb->local_alloc_bh->b_size);
 
-       status = ocfs2_journal_access(handle, local_alloc_inode,
-                                     osb->local_alloc_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, local_alloc_inode,
+                                        osb->local_alloc_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
 
                        goto leave;
                }
 
-               status = ocfs2_journal_access(handle, dir, parent_fe_bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_di(handle, dir, parent_fe_bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto leave;
        }
        ocfs2_set_new_buffer_uptodate(inode, *new_fe_bh);
 
-       status = ocfs2_journal_access(handle, inode, *new_fe_bh,
-                                     OCFS2_JOURNAL_ACCESS_CREATE);
+       status = ocfs2_journal_access_di(handle, inode, *new_fe_bh,
+                                        OCFS2_JOURNAL_ACCESS_CREATE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
                goto out_unlock_inode;
        }
 
-       err = ocfs2_journal_access(handle, inode, fe_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       err = ocfs2_journal_access_di(handle, inode, fe_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (err < 0) {
                mlog_errno(err);
                goto out_commit;
                goto leave;
        }
 
-       status = ocfs2_journal_access(handle, inode, fe_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, inode, fe_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
                                goto bail;
                        }
                }
-               status = ocfs2_journal_access(handle, new_inode, newfe_bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_di(handle, new_inode, newfe_bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto bail;
        old_inode->i_ctime = CURRENT_TIME;
        mark_inode_dirty(old_inode);
 
-       status = ocfs2_journal_access(handle, old_inode, old_inode_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, old_inode, old_inode_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status >= 0) {
                old_di = (struct ocfs2_dinode *) old_inode_bh->b_data;
 
                             (int)old_dir_nlink, old_dir->i_nlink);
                } else {
                        struct ocfs2_dinode *fe;
-                       status = ocfs2_journal_access(handle, old_dir,
-                                                     old_dir_bh,
-                                                     OCFS2_JOURNAL_ACCESS_WRITE);
+                       status = ocfs2_journal_access_di(handle, old_dir,
+                                                        old_dir_bh,
+                                                        OCFS2_JOURNAL_ACCESS_WRITE);
                        fe = (struct ocfs2_dinode *) old_dir_bh->b_data;
                        fe->i_links_count = cpu_to_le16(old_dir->i_nlink);
                        status = ocfs2_journal_dirty(handle, old_dir_bh);
                goto leave;
        }
 
-       status = ocfs2_journal_access(handle, orphan_dir_inode, orphan_dir_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, orphan_dir_inode, orphan_dir_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
                goto leave;
        }
 
-       status = ocfs2_journal_access(handle,orphan_dir_inode,  orphan_dir_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle,orphan_dir_inode,  orphan_dir_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto leave;
 
 
 #define OCFS2_SB(sb)       ((struct ocfs2_super *)(sb)->s_fs_info)
 
+/* Useful typedef for passing around journal access functions */
+typedef int (*ocfs2_journal_access_func)(handle_t *handle, struct inode *inode,
+                                        struct buffer_head *bh, int type);
+
 static inline int ocfs2_should_order_data(struct inode *inode)
 {
        if (!S_ISREG(inode->i_mode))
 
        set_buffer_uptodate(bh);
        unlock_buffer(bh);
        ocfs2_set_buffer_uptodate(gqinode, bh);
-       err = ocfs2_journal_access(handle, gqinode, bh, ja_type);
+       err = ocfs2_journal_access_dq(handle, gqinode, bh, ja_type);
        if (err < 0) {
                brelse(bh);
                goto out;
 
                mlog_errno(status);
                return status;
        }
-       status = ocfs2_journal_access(handle, inode, bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_dq(handle, inode, bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                ocfs2_commit_trans(OCFS2_SB(sb), handle);
                                goto out_commit;
                        }
                        /* Release local quota file entry */
-                       status = ocfs2_journal_access(handle, lqinode,
+                       status = ocfs2_journal_access_dq(handle, lqinode,
                                        qbh, OCFS2_JOURNAL_ACCESS_WRITE);
                        if (status < 0) {
                                mlog_errno(status);
                        mlog_errno(status);
                        goto out_bh;
                }
-               status = ocfs2_journal_access(handle, lqinode, bh,
-                                             OCFS2_JOURNAL_ACCESS_WRITE);
+               status = ocfs2_journal_access_dq(handle, lqinode, bh,
+                                                OCFS2_JOURNAL_ACCESS_WRITE);
                if (status < 0) {
                        mlog_errno(status);
                        goto out_trans;
                goto out;
        }
 
-       status = ocfs2_journal_access(handle, lqinode, bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_dq(handle, lqinode, bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out_trans;
                mlog_errno(status);
                goto out;
        }
-       status = ocfs2_journal_access(handle, lqinode, chunk->qc_headerbh,
+       status = ocfs2_journal_access_dq(handle, lqinode, chunk->qc_headerbh,
                                 OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out;
        }
 
-       status = ocfs2_journal_access(handle, sb_dqopt(sb)->files[type],
+       status = ocfs2_journal_access_dq(handle, sb_dqopt(sb)->files[type],
                        od->dq_chunk->qc_headerbh, OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
 
        mlog_entry("(new_clusters=%d, first_new_cluster = %u)\n",
                   new_clusters, first_new_cluster);
 
-       ret = ocfs2_journal_access(handle, bm_inode, group_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_gd(handle, bm_inode, group_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto out;
        }
 
        /* update the inode accordingly. */
-       ret = ocfs2_journal_access(handle, bm_inode, bm_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, bm_inode, bm_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto out_rollback;
        cl = &fe->id2.i_chain;
        cr = &cl->cl_recs[input->chain];
 
-       ret = ocfs2_journal_access(handle, main_bm_inode, group_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_gd(handle, main_bm_inode, group_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto out_commit;
                goto out_commit;
        }
 
-       ret = ocfs2_journal_access(handle, main_bm_inode, main_bm_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, main_bm_inode, main_bm_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto out_commit;
 
         * local to this block.
         */
        rc = ocfs2_validate_meta_ecc(sb, bh->b_data, &gd->bg_check);
-       if (!rc)
+       if (rc) {
+               mlog(ML_ERROR,
+                    "Checksum failed for group descriptor %llu\n",
+                    (unsigned long long)bh->b_blocknr);
+       } else
                rc = ocfs2_validate_gd_self(sb, bh, 1);
        if (!rc)
                rc = ocfs2_validate_gd_parent(sb, di, bh, 1);
                goto bail;
        }
 
-       status = ocfs2_journal_access(handle,
-                                     alloc_inode,
-                                     bg_bh,
-                                     OCFS2_JOURNAL_ACCESS_CREATE);
+       status = ocfs2_journal_access_gd(handle,
+                                        alloc_inode,
+                                        bg_bh,
+                                        OCFS2_JOURNAL_ACCESS_CREATE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
 
        bg = (struct ocfs2_group_desc *) bg_bh->b_data;
 
-       status = ocfs2_journal_access(handle, alloc_inode,
-                                     bh, OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, alloc_inode,
+                                        bh, OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        if (ocfs2_is_cluster_bitmap(alloc_inode))
                journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
 
-       status = ocfs2_journal_access(handle,
-                                     alloc_inode,
-                                     group_bh,
-                                     journal_type);
+       status = ocfs2_journal_access_gd(handle,
+                                        alloc_inode,
+                                        group_bh,
+                                        journal_type);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        bg_ptr = le64_to_cpu(bg->bg_next_group);
        prev_bg_ptr = le64_to_cpu(prev_bg->bg_next_group);
 
-       status = ocfs2_journal_access(handle, alloc_inode, prev_bg_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_gd(handle, alloc_inode, prev_bg_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out_rollback;
                goto out_rollback;
        }
 
-       status = ocfs2_journal_access(handle, alloc_inode, bg_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_gd(handle, alloc_inode, bg_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out_rollback;
                goto out_rollback;
        }
 
-       status = ocfs2_journal_access(handle, alloc_inode, fe_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, alloc_inode, fe_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto out_rollback;
        struct ocfs2_dinode *di = (struct ocfs2_dinode *) di_bh->b_data;
        struct ocfs2_chain_list *cl = (struct ocfs2_chain_list *) &di->id2.i_chain;
 
-       ret = ocfs2_journal_access(handle, inode, di_bh,
-                                  OCFS2_JOURNAL_ACCESS_WRITE);
+       ret = ocfs2_journal_access_di(handle, inode, di_bh,
+                                     OCFS2_JOURNAL_ACCESS_WRITE);
        if (ret < 0) {
                mlog_errno(ret);
                goto out;
 
        /* Ok, claim our bits now: set the info on dinode, chainlist
         * and then the group */
-       status = ocfs2_journal_access(handle,
-                                     alloc_inode,
-                                     ac->ac_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle,
+                                        alloc_inode,
+                                        ac->ac_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
        if (ocfs2_is_cluster_bitmap(alloc_inode))
                journal_type = OCFS2_JOURNAL_ACCESS_UNDO;
 
-       status = ocfs2_journal_access(handle, alloc_inode, group_bh,
-                                     journal_type);
+       status = ocfs2_journal_access_gd(handle, alloc_inode, group_bh,
+                                        journal_type);
        if (status < 0) {
                mlog_errno(status);
                goto bail;
                goto bail;
        }
 
-       status = ocfs2_journal_access(handle, alloc_inode, alloc_bh,
-                                     OCFS2_JOURNAL_ACCESS_WRITE);
+       status = ocfs2_journal_access_di(handle, alloc_inode, alloc_bh,
+                                        OCFS2_JOURNAL_ACCESS_WRITE);
        if (status < 0) {
                mlog_errno(status);
                goto bail;