diff --git a/src/rgw/services/svc_rados.h b/src/rgw/services/svc_rados.h
index ee94e81ff46..4d79c9ea6da 100644
--- a/src/rgw/services/svc_rados.h
+++ b/src/rgw/services/svc_rados.h
@@ -115,20 +115,6 @@ public:
 
   public:
     Obj() {}
-    Obj(const Obj& o) : rados_svc(o.rados_svc),
-                        rados_handle(o.rados_handle),
-                        ref(o.ref) {}
-
-    Obj(Obj&& o) : rados_svc(o.rados_svc),
-                   rados_handle(o.rados_handle),
-                   ref(std::move(o.ref)) {}
-
-    Obj& operator=(Obj&& o) {
-      rados_svc = o.rados_svc;
-      rados_handle = o.rados_handle;
-      ref = std::move(o.ref);
-      return *this;
-    }
 
     int open();
 
@@ -170,9 +156,6 @@ public:
     Pool(RGWSI_RADOS *_rados_svc) : rados_svc(_rados_svc) {}
   public:
     Pool() {}
-    Pool(const Pool& p) : rados_svc(p.rados_svc),
-                          rados_handle(p.rados_handle),
-                          pool(p.pool) {}
 
     int create(const std::vector<rgw_pool>& pools, std::vector<int> *retcodes);
     int lookup(const rgw_pool& pool);
diff --git a/src/rgw/services/svc_sys_obj_cache.cc b/src/rgw/services/svc_sys_obj_cache.cc
index 9d43480fd17..03786a8ff91 100644
--- a/src/rgw/services/svc_sys_obj_cache.cc
+++ b/src/rgw/services/svc_sys_obj_cache.cc
@@ -51,7 +51,7 @@ static string normal_name(rgw_pool& pool, const std::string& oid) {
   return buf;
 }
 
-void RGWSI_SysObj_Cache::normalize_pool_and_obj(rgw_pool& src_pool, const string& src_obj, rgw_pool& dst_pool, string& dst_obj)
+void RGWSI_SysObj_Cache::normalize_pool_and_obj(const rgw_pool& src_pool, const string& src_obj, rgw_pool& dst_pool, string& dst_obj)
 {
   if (src_obj.size()) {
     dst_pool = src_pool;
@@ -65,7 +65,7 @@ void RGWSI_SysObj_Cache::normalize_pool_and_obj(rgw_pool& src_pool, const string
 
 int RGWSI_SysObj_Cache::remove(RGWSysObjectCtxBase& obj_ctx,
                                RGWObjVersionTracker *objv_tracker,
-                               rgw_raw_obj& obj)
+                               const rgw_raw_obj& obj)
 
 {
   rgw_pool pool;
@@ -87,7 +87,7 @@ int RGWSI_SysObj_Cache::remove(RGWSysObjectCtxBase& obj_ctx,
 int RGWSI_SysObj_Cache::read(RGWSysObjectCtxBase& obj_ctx,
                              GetObjState& read_state,
                              RGWObjVersionTracker *objv_tracker,
-                             rgw_raw_obj& obj,
+                             const rgw_raw_obj& obj,
                              bufferlist *obl, off_t ofs, off_t end,
                              map<string, bufferlist> *attrs,
                              rgw_cache_entry_info *cache_info,
@@ -164,7 +164,7 @@ int RGWSI_SysObj_Cache::read(RGWSysObjectCtxBase& obj_ctx,
   return r;
 }
 
-int RGWSI_SysObj_Cache::get_attr(rgw_raw_obj& obj,
+int RGWSI_SysObj_Cache::get_attr(const rgw_raw_obj& obj,
 				 const char *attr_name,
 				 bufferlist *dest)
 {
@@ -194,7 +194,7 @@ int RGWSI_SysObj_Cache::get_attr(rgw_raw_obj& obj,
   return RGWSI_SysObj_Core::get_attr(obj, attr_name, dest);
 }
 
-int RGWSI_SysObj_Cache::set_attrs(rgw_raw_obj& obj, 
+int RGWSI_SysObj_Cache::set_attrs(const rgw_raw_obj& obj, 
                                   map<string, bufferlist>& attrs,
                                   map<string, bufferlist> *rmattrs,
                                   RGWObjVersionTracker *objv_tracker) 
@@ -227,7 +227,7 @@ int RGWSI_SysObj_Cache::set_attrs(rgw_raw_obj& obj,
   return ret;
 }
 
-int RGWSI_SysObj_Cache::write(rgw_raw_obj& obj,
+int RGWSI_SysObj_Cache::write(const rgw_raw_obj& obj,
                              real_time *pmtime,
                              map<std::string, bufferlist>& attrs,
                              bool exclusive,
@@ -278,7 +278,7 @@ int RGWSI_SysObj_Cache::write(rgw_raw_obj& obj,
   return ret;
 }
 
-int RGWSI_SysObj_Cache::write_data(rgw_raw_obj& obj,
+int RGWSI_SysObj_Cache::write_data(const rgw_raw_obj& obj,
                                    const bufferlist& data,
                                    bool exclusive,
                                    RGWObjVersionTracker *objv_tracker)
@@ -311,7 +311,7 @@ int RGWSI_SysObj_Cache::write_data(rgw_raw_obj& obj,
   return ret;
 }
 
-int RGWSI_SysObj_Cache::raw_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *pepoch,
+int RGWSI_SysObj_Cache::raw_stat(const rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *pepoch,
                                  map<string, bufferlist> *attrs, bufferlist *first_chunk,
                                  RGWObjVersionTracker *objv_tracker)
 {
@@ -371,7 +371,7 @@ done:
   return 0;
 }
 
-int RGWSI_SysObj_Cache::distribute_cache(const string& normal_name, rgw_raw_obj& obj, ObjectCacheInfo& obj_info, int op)
+int RGWSI_SysObj_Cache::distribute_cache(const string& normal_name, const rgw_raw_obj& obj, ObjectCacheInfo& obj_info, int op)
 {
   RGWCacheNotifyInfo info;
 
diff --git a/src/rgw/services/svc_sys_obj_cache.h b/src/rgw/services/svc_sys_obj_cache.h
index 2168abe0eeb..a7d09c48043 100644
--- a/src/rgw/services/svc_sys_obj_cache.h
+++ b/src/rgw/services/svc_sys_obj_cache.h
@@ -22,7 +22,7 @@ class RGWSI_SysObj_Cache : public RGWSI_SysObj_Core
 
   std::shared_ptr<RGWSI_SysObj_Cache_CB> cb;
 
-  void normalize_pool_and_obj(rgw_pool& src_pool, const string& src_obj, rgw_pool& dst_pool, string& dst_obj);
+  void normalize_pool_and_obj(const rgw_pool& src_pool, const string& src_obj, rgw_pool& dst_pool, string& dst_obj);
 protected:
   void init(std::shared_ptr<RGWSI_RADOS>& _rados_svc,
             std::shared_ptr<RGWSI_Zone>& _zone_svc,
@@ -33,31 +33,31 @@ protected:
 
   int do_start() override;
 
-  int raw_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch,
+  int raw_stat(const rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch,
                map<string, bufferlist> *attrs, bufferlist *first_chunk,
                RGWObjVersionTracker *objv_tracker) override;
 
   int read(RGWSysObjectCtxBase& obj_ctx,
            GetObjState& read_state,
            RGWObjVersionTracker *objv_tracker,
-           rgw_raw_obj& obj,
+           const rgw_raw_obj& obj,
            bufferlist *bl, off_t ofs, off_t end,
            map<string, bufferlist> *attrs,
            rgw_cache_entry_info *cache_info,
            boost::optional<obj_version>) override;
 
-  int get_attr(rgw_raw_obj& obj, const char *name, bufferlist *dest) override;
+  int get_attr(const rgw_raw_obj& obj, const char *name, bufferlist *dest) override;
 
-  int set_attrs(rgw_raw_obj& obj, 
+  int set_attrs(const rgw_raw_obj& obj, 
                 map<string, bufferlist>& attrs,
                 map<string, bufferlist> *rmattrs,
                 RGWObjVersionTracker *objv_tracker);
 
   int remove(RGWSysObjectCtxBase& obj_ctx,
              RGWObjVersionTracker *objv_tracker,
-             rgw_raw_obj& obj) override;
+             const rgw_raw_obj& obj) override;
 
-  int write(rgw_raw_obj& obj,
+  int write(const rgw_raw_obj& obj,
             real_time *pmtime,
             map<std::string, bufferlist>& attrs,
             bool exclusive,
@@ -65,12 +65,12 @@ protected:
             RGWObjVersionTracker *objv_tracker,
             real_time set_mtime) override;
 
-  int write_data(rgw_raw_obj& obj,
+  int write_data(const rgw_raw_obj& obj,
                  const bufferlist& bl,
                  bool exclusive,
                  RGWObjVersionTracker *objv_tracker);
 
-  int distribute_cache(const string& normal_name, rgw_raw_obj& obj, ObjectCacheInfo& obj_info, int op);
+  int distribute_cache(const string& normal_name, const rgw_raw_obj& obj, ObjectCacheInfo& obj_info, int op);
 
   int watch_cb(uint64_t notify_id,
                uint64_t cookie,
diff --git a/src/rgw/services/svc_sys_obj_core.cc b/src/rgw/services/svc_sys_obj_core.cc
index b8699380262..5e0a8eb40e3 100644
--- a/src/rgw/services/svc_sys_obj_core.cc
+++ b/src/rgw/services/svc_sys_obj_core.cc
@@ -8,11 +8,14 @@
 
 int RGWSI_SysObj_Core::GetObjState::get_rados_obj(RGWSI_RADOS *rados_svc,
                                                   RGWSI_Zone *zone_svc,
-                                                  rgw_raw_obj& obj,
+                                                  const rgw_raw_obj& obj,
                                                   RGWSI_RADOS::Obj **pobj)
 {
   if (!has_rados_obj) {
-    zone_svc->canonicalize_raw_obj(&obj);
+    if (obj.oid.empty()) {
+      ldout(rados_svc->ctx(), 0) << "ERROR: obj.oid is empty" << dendl;
+      return -EINVAL;
+    }
 
     rados_obj = rados_svc->obj(obj);
     int r = rados_obj.open();
@@ -26,10 +29,13 @@ int RGWSI_SysObj_Core::GetObjState::get_rados_obj(RGWSI_RADOS *rados_svc,
 }
 
 int RGWSI_SysObj_Core::get_rados_obj(RGWSI_Zone *zone_svc,
-                                     rgw_raw_obj& obj,
+                                     const rgw_raw_obj& obj,
                                      RGWSI_RADOS::Obj *pobj)
 {
-  zone_svc->canonicalize_raw_obj(&obj);
+  if (obj.oid.empty()) {
+    ldout(rados_svc->ctx(), 0) << "ERROR: obj.oid is empty" << dendl;
+    return -EINVAL;
+  }
 
   *pobj = std::move(rados_svc->obj(obj));
   int r = pobj->open();
@@ -40,7 +46,7 @@ int RGWSI_SysObj_Core::get_rados_obj(RGWSI_Zone *zone_svc,
   return 0;
 }
 
-int RGWSI_SysObj_Core::get_system_obj_state_impl(RGWSysObjectCtxBase *rctx, rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker)
+int RGWSI_SysObj_Core::get_system_obj_state_impl(RGWSysObjectCtxBase *rctx, const rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker)
 {
   if (obj.empty()) {
     return -EINVAL;
@@ -78,7 +84,7 @@ int RGWSI_SysObj_Core::get_system_obj_state_impl(RGWSysObjectCtxBase *rctx, rgw_
   return 0;
 }
 
-int RGWSI_SysObj_Core::get_system_obj_state(RGWSysObjectCtxBase *rctx, rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker)
+int RGWSI_SysObj_Core::get_system_obj_state(RGWSysObjectCtxBase *rctx, const rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker)
 {
   int ret;
 
@@ -89,7 +95,7 @@ int RGWSI_SysObj_Core::get_system_obj_state(RGWSysObjectCtxBase *rctx, rgw_raw_o
   return ret;
 }
 
-int RGWSI_SysObj_Core::raw_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch,
+int RGWSI_SysObj_Core::raw_stat(const rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch,
                                 map<string, bufferlist> *attrs, bufferlist *first_chunk,
                                 RGWObjVersionTracker *objv_tracker)
 {
@@ -139,7 +145,7 @@ int RGWSI_SysObj_Core::raw_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pm
 
 int RGWSI_SysObj_Core::stat(RGWSysObjectCtxBase& obj_ctx,
                             GetObjState& state,
-                            rgw_raw_obj& obj,
+                            const rgw_raw_obj& obj,
                             map<string, bufferlist> *attrs,
                             real_time *lastmod,
                             uint64_t *obj_size,
@@ -176,7 +182,7 @@ int RGWSI_SysObj_Core::stat(RGWSysObjectCtxBase& obj_ctx,
 int RGWSI_SysObj_Core::read(RGWSysObjectCtxBase& obj_ctx,
                             GetObjState& read_state,
                             RGWObjVersionTracker *objv_tracker,
-                            rgw_raw_obj& obj,
+                            const rgw_raw_obj& obj,
                             bufferlist *bl, off_t ofs, off_t end,
                             map<string, bufferlist> *attrs,
                             rgw_cache_entry_info *cache_info,
@@ -234,7 +240,7 @@ int RGWSI_SysObj_Core::read(RGWSysObjectCtxBase& obj_ctx,
  * dest: bufferlist to store the result in
  * Returns: 0 on success, -ERR# otherwise.
  */
-int RGWSI_SysObj_Core::get_attr(rgw_raw_obj& obj,
+int RGWSI_SysObj_Core::get_attr(const rgw_raw_obj& obj,
                                 const char *name,
                                 bufferlist *dest)
 {
@@ -257,7 +263,7 @@ int RGWSI_SysObj_Core::get_attr(rgw_raw_obj& obj,
   return 0;
 }
 
-int RGWSI_SysObj_Core::set_attrs(rgw_raw_obj& obj, 
+int RGWSI_SysObj_Core::set_attrs(const rgw_raw_obj& obj, 
                                  map<string, bufferlist>& attrs,
                                  map<string, bufferlist> *rmattrs,
                                  RGWObjVersionTracker *objv_tracker) 
@@ -305,7 +311,7 @@ int RGWSI_SysObj_Core::set_attrs(rgw_raw_obj& obj,
   return 0;
 }
 
-int RGWSI_SysObj_Core::omap_get_vals(rgw_raw_obj& obj,
+int RGWSI_SysObj_Core::omap_get_vals(const rgw_raw_obj& obj,
                                      const string& marker,
                                      uint64_t count,
                                      std::map<string, bufferlist> *m,
@@ -346,7 +352,7 @@ int RGWSI_SysObj_Core::omap_get_vals(rgw_raw_obj& obj,
   return 0;
 }
 
-int RGWSI_SysObj_Core::omap_get_all(rgw_raw_obj& obj, std::map<string, bufferlist> *m)
+int RGWSI_SysObj_Core::omap_get_all(const rgw_raw_obj& obj, std::map<string, bufferlist> *m)
 {
   RGWSI_RADOS::Obj rados_obj;
   int r = get_rados_obj(zone_svc.get(), obj, &rados_obj);
@@ -380,7 +386,7 @@ int RGWSI_SysObj_Core::omap_get_all(rgw_raw_obj& obj, std::map<string, bufferlis
   return 0;
 }
 
-int RGWSI_SysObj_Core::omap_set(rgw_raw_obj& obj, const std::string& key, bufferlist& bl, bool must_exist)
+int RGWSI_SysObj_Core::omap_set(const rgw_raw_obj& obj, const std::string& key, bufferlist& bl, bool must_exist)
 {
   RGWSI_RADOS::Obj rados_obj;
   int r = get_rados_obj(zone_svc.get(), obj, &rados_obj);
@@ -401,7 +407,7 @@ int RGWSI_SysObj_Core::omap_set(rgw_raw_obj& obj, const std::string& key, buffer
   return r;
 }
 
-int RGWSI_SysObj_Core::omap_set(rgw_raw_obj& obj, const std::map<std::string, bufferlist>& m, bool must_exist)
+int RGWSI_SysObj_Core::omap_set(const rgw_raw_obj& obj, const std::map<std::string, bufferlist>& m, bool must_exist)
 {
   RGWSI_RADOS::Obj rados_obj;
   int r = get_rados_obj(zone_svc.get(), obj, &rados_obj);
@@ -418,7 +424,7 @@ int RGWSI_SysObj_Core::omap_set(rgw_raw_obj& obj, const std::map<std::string, bu
   return r;
 }
 
-int RGWSI_SysObj_Core::omap_del(rgw_raw_obj& obj, const std::string& key)
+int RGWSI_SysObj_Core::omap_del(const rgw_raw_obj& obj, const std::string& key)
 {
   RGWSI_RADOS::Obj rados_obj;
   int r = get_rados_obj(zone_svc.get(), obj, &rados_obj);
@@ -438,7 +444,7 @@ int RGWSI_SysObj_Core::omap_del(rgw_raw_obj& obj, const std::string& key)
   return r;
 }
 
-int RGWSI_SysObj_Core::notify(rgw_raw_obj& obj,
+int RGWSI_SysObj_Core::notify(const rgw_raw_obj& obj,
 			      bufferlist& bl,
 			      uint64_t timeout_ms,
 			      bufferlist *pbl)
@@ -456,7 +462,7 @@ int RGWSI_SysObj_Core::notify(rgw_raw_obj& obj,
 
 int RGWSI_SysObj_Core::remove(RGWSysObjectCtxBase& obj_ctx,
                          RGWObjVersionTracker *objv_tracker,
-                         rgw_raw_obj& obj)
+                         const rgw_raw_obj& obj)
 {
   RGWSI_RADOS::Obj rados_obj;
   int r = get_rados_obj(zone_svc.get(), obj, &rados_obj);
@@ -479,7 +485,7 @@ int RGWSI_SysObj_Core::remove(RGWSysObjectCtxBase& obj_ctx,
   return 0;
 }
 
-int RGWSI_SysObj_Core::write(rgw_raw_obj& obj,
+int RGWSI_SysObj_Core::write(const rgw_raw_obj& obj,
                              real_time *pmtime,
                              map<std::string, bufferlist>& attrs,
                              bool exclusive,
@@ -545,7 +551,7 @@ int RGWSI_SysObj_Core::write(rgw_raw_obj& obj,
 }
 
 
-int RGWSI_SysObj_Core::write_data(rgw_raw_obj& obj,
+int RGWSI_SysObj_Core::write_data(const rgw_raw_obj& obj,
                                   const bufferlist& bl,
                                   bool exclusive,
                                   RGWObjVersionTracker *objv_tracker)
diff --git a/src/rgw/services/svc_sys_obj_core.h b/src/rgw/services/svc_sys_obj_core.h
index d3d897b0c2c..e40f7d704cb 100644
--- a/src/rgw/services/svc_sys_obj_core.h
+++ b/src/rgw/services/svc_sys_obj_core.h
@@ -112,7 +112,7 @@ protected:
 
     int get_rados_obj(RGWSI_RADOS *rados_svc,
                       RGWSI_Zone *zone_svc,
-                      rgw_raw_obj& obj,
+                      const rgw_raw_obj& obj,
                       RGWSI_RADOS::Obj **pobj);
   };
 
@@ -122,16 +122,16 @@ protected:
     rados_svc = _rados_svc;
     zone_svc = _zone_svc;
   }
-  int get_rados_obj(RGWSI_Zone *zone_svc, rgw_raw_obj& obj, RGWSI_RADOS::Obj *pobj);
+  int get_rados_obj(RGWSI_Zone *zone_svc, const rgw_raw_obj& obj, RGWSI_RADOS::Obj *pobj);
 
-  virtual int raw_stat(rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch,
+  virtual int raw_stat(const rgw_raw_obj& obj, uint64_t *psize, real_time *pmtime, uint64_t *epoch,
                        map<string, bufferlist> *attrs, bufferlist *first_chunk,
                        RGWObjVersionTracker *objv_tracker);
 
   virtual int read(RGWSysObjectCtxBase& obj_ctx,
                    GetObjState& read_state,
                    RGWObjVersionTracker *objv_tracker,
-                   rgw_raw_obj& obj,
+                   const rgw_raw_obj& obj,
                    bufferlist *bl, off_t ofs, off_t end,
                    map<string, bufferlist> *attrs,
                    rgw_cache_entry_info *cache_info,
@@ -139,9 +139,9 @@ protected:
 
   virtual int remove(RGWSysObjectCtxBase& obj_ctx,
                      RGWObjVersionTracker *objv_tracker,
-                     rgw_raw_obj& obj);
+                     const rgw_raw_obj& obj);
 
-  virtual int write(rgw_raw_obj& obj,
+  virtual int write(const rgw_raw_obj& obj,
                     real_time *pmtime,
                     map<std::string, bufferlist>& attrs,
                     bool exclusive,
@@ -149,40 +149,40 @@ protected:
                     RGWObjVersionTracker *objv_tracker,
                     real_time set_mtime);
 
-  virtual int write_data(rgw_raw_obj& obj,
+  virtual int write_data(const rgw_raw_obj& obj,
                          const bufferlist& bl,
                          bool exclusive,
                          RGWObjVersionTracker *objv_tracker);
 
-  virtual int get_attr(rgw_raw_obj& obj, const char *name, bufferlist *dest);
+  virtual int get_attr(const rgw_raw_obj& obj, const char *name, bufferlist *dest);
 
-  virtual int set_attrs(rgw_raw_obj& obj, 
+  virtual int set_attrs(const rgw_raw_obj& obj, 
                         map<string, bufferlist>& attrs,
                         map<string, bufferlist> *rmattrs,
                         RGWObjVersionTracker *objv_tracker);
 
-  virtual int omap_get_all(rgw_raw_obj& obj, std::map<string, bufferlist> *m);
-  virtual int omap_get_vals(rgw_raw_obj& obj,
+  virtual int omap_get_all(const rgw_raw_obj& obj, std::map<string, bufferlist> *m);
+  virtual int omap_get_vals(const rgw_raw_obj& obj,
                             const string& marker,
                             uint64_t count,
                             std::map<string, bufferlist> *m,
                             bool *pmore);
-  virtual int omap_set(rgw_raw_obj& obj, const std::string& key, bufferlist& bl, bool must_exist = false);
-  virtual int omap_set(rgw_raw_obj& obj, const map<std::string, bufferlist>& m, bool must_exist = false);
-  virtual int omap_del(rgw_raw_obj& obj, const std::string& key);
+  virtual int omap_set(const rgw_raw_obj& obj, const std::string& key, bufferlist& bl, bool must_exist = false);
+  virtual int omap_set(const rgw_raw_obj& obj, const map<std::string, bufferlist>& m, bool must_exist = false);
+  virtual int omap_del(const rgw_raw_obj& obj, const std::string& key);
 
-  virtual int notify(rgw_raw_obj& obj,
+  virtual int notify(const rgw_raw_obj& obj,
 		     bufferlist& bl,
 		     uint64_t timeout_ms,
 		     bufferlist *pbl);
 
   /* wrappers */
-  int get_system_obj_state_impl(RGWSysObjectCtxBase *rctx, rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker);
-  int get_system_obj_state(RGWSysObjectCtxBase *rctx, rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker);
+  int get_system_obj_state_impl(RGWSysObjectCtxBase *rctx, const rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker);
+  int get_system_obj_state(RGWSysObjectCtxBase *rctx, const rgw_raw_obj& obj, RGWSysObjState **state, RGWObjVersionTracker *objv_tracker);
 
   int stat(RGWSysObjectCtxBase& obj_ctx,
            GetObjState& state,
-           rgw_raw_obj& obj,
+           const rgw_raw_obj& obj,
            map<string, bufferlist> *attrs,
            real_time *lastmod,
            uint64_t *obj_size,
diff --git a/src/rgw/services/svc_zone.cc b/src/rgw/services/svc_zone.cc
index 88fc34cb182..920e81d1c9d 100644
--- a/src/rgw/services/svc_zone.cc
+++ b/src/rgw/services/svc_zone.cc
@@ -933,14 +933,6 @@ bool RGWSI_Zone::is_syncing_bucket_meta(const rgw_bucket& bucket)
 }
 
 
-void RGWSI_Zone::canonicalize_raw_obj(rgw_raw_obj *obj)
-{
-  if (obj->oid.empty()) {
-    obj->oid = obj->pool.to_str();
-    obj->pool = zone_params->domain_root;
-  }
-}
-
 int RGWSI_Zone::select_new_bucket_location(RGWUserInfo& user_info, const string& zonegroup_id, const string& request_rule,
                                          string *pselected_rule_name, RGWZonePlacementInfo *rule_info)
 
diff --git a/src/rgw/services/svc_zone.h b/src/rgw/services/svc_zone.h
index 1c4d720a81c..bc9ffe12236 100644
--- a/src/rgw/services/svc_zone.h
+++ b/src/rgw/services/svc_zone.h
@@ -127,8 +127,6 @@ public:
   int list_realms(list<string>& realms);
   int list_periods(list<string>& periods);
   int list_periods(const string& current_period, list<string>& periods);
-
-  void canonicalize_raw_obj(rgw_raw_obj *obj);
 };
 
 #endif