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diff --git a/src/ceph/src/mds/inode_backtrace.h b/src/ceph/src/mds/inode_backtrace.h
deleted file mode 100644
index 08cbf65..0000000
--- a/src/ceph/src/mds/inode_backtrace.h
+++ /dev/null
@@ -1,95 +0,0 @@
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
-// vim: ts=8 sw=2 smarttab
-#ifndef CEPH_INODE_BACKTRACE_H
-#define CEPH_INODE_BACKTRACE_H
-
-#include "mdstypes.h"
-
-namespace ceph {
-  class Formatter;
-}
-
-/** metadata backpointers **/
-
-/*
- * - inode_backpointer_t is just the _pointer_ portion; it doesn't
- *   tell us who we point _from_.
- *
- * - it _does_ include a version of the source object, so we can look
- *   at two different pointers (from the same inode) and tell which is
- *   newer.
- */
-struct inode_backpointer_t {
-  inodeno_t dirino;    // containing directory ino
-  string dname;        // linking dentry name
-  version_t version;   // child's version at time of backpointer creation
-
-  inode_backpointer_t() : version(0) {}
-  inode_backpointer_t(inodeno_t i, const string &d, version_t v) : dirino(i), dname(d), version(v) {}
-
-  void encode(bufferlist& bl) const;
-  void decode(bufferlist::iterator &bl);
-  void decode_old(bufferlist::iterator &bl);
-  void dump(Formatter *f) const;
-  static void generate_test_instances(list<inode_backpointer_t*>& ls);
-};
-WRITE_CLASS_ENCODER(inode_backpointer_t)
-
-inline bool operator==(const inode_backpointer_t& l, const inode_backpointer_t& r) {
-	return l.dirino == r.dirino && l.version == r.version && l.dname == r.dname;
-}
-
-inline ostream& operator<<(ostream& out, const inode_backpointer_t& ib) {
-  return out << "<" << ib.dirino << "/" << ib.dname << " v" << ib.version << ">";
-}
-
-/*
- * inode_backtrace_t is a complete ancestor backtraces for a given inode.
- * we include who _we_ are, so that the backtrace can stand alone (as, say,
- * an xattr on an object).
- */
-struct inode_backtrace_t {
-  inodeno_t ino;       // my ino
-  vector<inode_backpointer_t> ancestors;
-  int64_t pool;
-  // we use a set for old_pools to avoid duplicate entries, e.g. setlayout 0, 1, 0
-  set<int64_t> old_pools;
-
-  inode_backtrace_t() : pool(-1) {}
-
-  void encode(bufferlist& bl) const;
-  void decode(bufferlist::iterator &bl);
-  void dump(Formatter *f) const;
-  static void generate_test_instances(list<inode_backtrace_t*>& ls);
-
-  /**
-   * Compare two backtraces *for the same inode*.
-   * @pre The backtraces are for the same inode
-   *
-   * @param other The backtrace to compare ourselves with
-   * @param equivalent A bool pointer which will be set to true if
-   * the other backtrace is equivalent to our own (has the same dentries)
-   * @param divergent A bool pointer which will be set to true if
-   * the backtraces have differing entries without versions supporting them
-   *
-   * @returns 1 if we are newer than the other, 0 if equal, -1 if older
-   */
-  int compare(const inode_backtrace_t& other,
-               bool *equivalent, bool *divergent) const;
-};
-WRITE_CLASS_ENCODER(inode_backtrace_t)
-
-inline ostream& operator<<(ostream& out, const inode_backtrace_t& it) {
-  return out << "(" << it.pool << ")" << it.ino << ":" << it.ancestors << "//" << it.old_pools;
-}
-
-inline bool operator==(const inode_backtrace_t& l,
-                       const inode_backtrace_t& r) {
-  return l.ino == r.ino &&
-      l.pool == r.pool &&
-      l.old_pools == r.old_pools &&
-      l.ancestors == r.ancestors;
-}
-
-#endif
-