mds/FSMap: pass by ref in update_compat

Coverity: CID 1355578:  Performance inefficiencies  (PASS_BY_VALUE)

Signed-off-by: John Spray <john.spray@redhat.com>

diff --git a/src/mds/FSMap.h b/src/mds/FSMap.h
index e14173f04baa0f4976893386536e079022c60b14..246e7096db6b67e73959bd0247de039864a805ee 100644 (file)
--- a/src/mds/FSMap.h
+++ b/src/mds/FSMap.h
@@ -336,7 +336,7 @@ public:
    * for the one we had previously.  Impose the new one
    * on all filesystems.
    */
-  void update_compat(CompatSet c)
+  void update_compat(const CompatSet &c)
   {
     // We could do something more complicated here to enable
     // different filesystems to be served by different MDS versions,