+/**
+ * dbg_dump_lpt_leb - dump an LPT LEB.
+ * @c: UBIFS file-system description object
+ * @lnum: LEB number to dump
+ *
+ * This function dumps an LEB from LPT area. Nodes in this area are very
+ * different to nodes in the main area (e.g., they do not have common headers,
+ * they do not have 8-byte alignments, etc), so we have a separate function to
+ * dump LPT area LEBs. Note, LPT has to be locked by the coller.
+ */
+static void dump_lpt_leb(const struct ubifs_info *c, int lnum)
+{
+ int err, len = c->leb_size, node_type, node_num, node_len, offs;
+ void *buf = c->dbg->buf;
+
+ printk(KERN_DEBUG "(pid %d) start dumping LEB %d\n",
+ current->pid, lnum);
+ err = ubi_read(c->ubi, lnum, buf, 0, c->leb_size);
+ if (err) {
+ ubifs_err("cannot read LEB %d, error %d", lnum, err);
+ return;
+ }
+ while (1) {
+ offs = c->leb_size - len;
+ if (!is_a_node(c, buf, len)) {
+ int pad_len;
+
+ pad_len = get_pad_len(c, buf, len);
+ if (pad_len) {
+ printk(KERN_DEBUG "LEB %d:%d, pad %d bytes\n",
+ lnum, offs, pad_len);
+ buf += pad_len;
+ len -= pad_len;
+ continue;
+ }
+ if (len)
+ printk(KERN_DEBUG "LEB %d:%d, free %d bytes\n",
+ lnum, offs, len);
+ break;
+ }
+
+ node_type = get_lpt_node_type(c, buf, &node_num);
+ switch (node_type) {
+ case UBIFS_LPT_PNODE:
+ {
+ node_len = c->pnode_sz;
+ if (c->big_lpt)
+ printk(KERN_DEBUG "LEB %d:%d, pnode num %d\n",
+ lnum, offs, node_num);
+ else
+ printk(KERN_DEBUG "LEB %d:%d, pnode\n",
+ lnum, offs);
+ break;
+ }
+ case UBIFS_LPT_NNODE:
+ {
+ int i;
+ struct ubifs_nnode nnode;
+
+ node_len = c->nnode_sz;
+ if (c->big_lpt)
+ printk(KERN_DEBUG "LEB %d:%d, nnode num %d, ",
+ lnum, offs, node_num);
+ else
+ printk(KERN_DEBUG "LEB %d:%d, nnode, ",
+ lnum, offs);
+ err = ubifs_unpack_nnode(c, buf, &nnode);
+ for (i = 0; i < UBIFS_LPT_FANOUT; i++) {
+ printk("%d:%d", nnode.nbranch[i].lnum,
+ nnode.nbranch[i].offs);
+ if (i != UBIFS_LPT_FANOUT - 1)
+ printk(", ");
+ }
+ printk("\n");
+ break;
+ }
+ case UBIFS_LPT_LTAB:
+ node_len = c->ltab_sz;
+ printk(KERN_DEBUG "LEB %d:%d, ltab\n",
+ lnum, offs);
+ break;
+ case UBIFS_LPT_LSAVE:
+ node_len = c->lsave_sz;
+ printk(KERN_DEBUG "LEB %d:%d, lsave len\n", lnum, offs);
+ break;
+ default:
+ ubifs_err("LPT node type %d not recognized", node_type);
+ return;
+ }
+
+ buf += node_len;
+ len -= node_len;
+ }
+
+ printk(KERN_DEBUG "(pid %d) finish dumping LEB %d\n",
+ current->pid, lnum);
+}
+
+/**
+ * dbg_dump_lpt_lebs - dump LPT lebs.
+ * @c: UBIFS file-system description object
+ *
+ * This function dumps all LPT LEBs. The caller has to make sure the LPT is
+ * locked.
+ */
+void dbg_dump_lpt_lebs(const struct ubifs_info *c)
+{
+ int i;
+
+ printk(KERN_DEBUG "(pid %d) start dumping all LPT LEBs\n",
+ current->pid);
+ for (i = 0; i < c->lpt_lebs; i++)
+ dump_lpt_leb(c, i + c->lpt_first);
+ printk(KERN_DEBUG "(pid %d) finish dumping all LPT LEBs\n",
+ current->pid);
+}
+