+static int ocfs2_dir_foreach_blk_id(struct inode *inode,
+ unsigned long *f_version,
+ loff_t *f_pos, void *priv,
+ filldir_t filldir)
+{
+ int ret, i, filldir_ret;
+ unsigned long offset = *f_pos;
+ struct buffer_head *di_bh = NULL;
+ struct ocfs2_dinode *di;
+ struct ocfs2_inline_data *data;
+ struct ocfs2_dir_entry *de;
+
+ ret = ocfs2_read_block(OCFS2_SB(inode->i_sb), OCFS2_I(inode)->ip_blkno,
+ &di_bh, OCFS2_BH_CACHED, inode);
+ if (ret) {
+ mlog(ML_ERROR, "Unable to read inode block for dir %llu\n",
+ (unsigned long long)OCFS2_I(inode)->ip_blkno);
+ goto out;
+ }
+
+ di = (struct ocfs2_dinode *)di_bh->b_data;
+ data = &di->id2.i_data;
+
+ while (*f_pos < i_size_read(inode)) {
+revalidate:
+ /* If the dir block has changed since the last call to
+ * readdir(2), then we might be pointing to an invalid
+ * dirent right now. Scan from the start of the block
+ * to make sure. */
+ if (*f_version != inode->i_version) {
+ for (i = 0; i < i_size_read(inode) && i < offset; ) {
+ de = (struct ocfs2_dir_entry *)
+ (data->id_data + i);
+ /* It's too expensive to do a full
+ * dirent test each time round this
+ * loop, but we do have to test at
+ * least that it is non-zero. A
+ * failure will be detected in the
+ * dirent test below. */
+ if (le16_to_cpu(de->rec_len) <
+ OCFS2_DIR_REC_LEN(1))
+ break;
+ i += le16_to_cpu(de->rec_len);
+ }
+ *f_pos = offset = i;
+ *f_version = inode->i_version;
+ }
+
+ de = (struct ocfs2_dir_entry *) (data->id_data + *f_pos);
+ if (!ocfs2_check_dir_entry(inode, de, di_bh, *f_pos)) {
+ /* On error, skip the f_pos to the end. */
+ *f_pos = i_size_read(inode);
+ goto out;
+ }
+ offset += le16_to_cpu(de->rec_len);
+ if (le64_to_cpu(de->inode)) {
+ /* We might block in the next section
+ * if the data destination is
+ * currently swapped out. So, use a
+ * version stamp to detect whether or
+ * not the directory has been modified
+ * during the copy operation.
+ */
+ unsigned long version = *f_version;
+ unsigned char d_type = DT_UNKNOWN;
+
+ if (de->file_type < OCFS2_FT_MAX)
+ d_type = ocfs2_filetype_table[de->file_type];
+
+ filldir_ret = filldir(priv, de->name,
+ de->name_len,
+ *f_pos,
+ le64_to_cpu(de->inode),
+ d_type);
+ if (filldir_ret)
+ break;
+ if (version != *f_version)
+ goto revalidate;
+ }
+ *f_pos += le16_to_cpu(de->rec_len);
+ }
+
+out:
+ brelse(di_bh);
+
+ return 0;
+}
+
+static int ocfs2_dir_foreach_blk_el(struct inode *inode,
+ unsigned long *f_version,
+ loff_t *f_pos, void *priv,
+ filldir_t filldir)