osdc/Objecter: expose methods for getting object hash position and pg

Signed-off-by: Sage Weil <sage@inktank.com>

2 files changed, 21 insertions, 0 deletions

diff --git a/src/osdc/Objecter.cc b/src/osdc/Objecter.cc
index 89f99f1a927..9ad49b0715b 100644
--- a/src/osdc/Objecter.cc
+++ b/src/osdc/Objecter.cc
@@ -1320,6 +1320,24 @@ bool Objecter::is_pg_changed(vector<int>& o, vector<int>& n, bool any_change)
   return false;      // same primary (tho replicas may have changed)
 }
 
+int64_t Objecter::get_object_hash_position(int64_t pool, const string& key,
+					   const string& ns)
+{
+  const pg_pool_t *p = osdmap->get_pg_pool(pool);
+  if (!p)
+    return -ENOENT;
+  return p->hash_key(key, ns);
+}
+
+int64_t Objecter::get_object_pg_hash_position(int64_t pool, const string& key,
+					      const string& ns)
+{
+  const pg_pool_t *p = osdmap->get_pg_pool(pool);
+  if (!p)
+    return -ENOENT;
+  return p->raw_hash_to_pg(p->hash_key(key, ns));
+}
+
 int Objecter::recalc_op_target(Op *op)
 {
   bool is_read = op->flags & CEPH_OSD_FLAG_READ;
diff --git a/src/osdc/Objecter.h b/src/osdc/Objecter.h
index f2c44a49772..f42d07415cc 100644
--- a/src/osdc/Objecter.h
+++ b/src/osdc/Objecter.h
@@ -1351,6 +1351,9 @@ public:
 		     list<LingerOp*>& need_resend_linger,
 		     map<tid_t, CommandOp*>& need_resend_command);
 
+  int64_t get_object_hash_position(int64_t pool, const string& key, const string& ns);
+  int64_t get_object_pg_hash_position(int64_t pool, const string& key, const string& ns);
+
   // messages
  public:
   void dispatch(Message *m);