mds/MDS.cc: use !empty() instead of size() to check for emptiness

Use empty() since it should be prefered as it has, following the
standard, a constant time complexity regardless of the containter
type. The same is not guaranteed for size().

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>

diff --git a/src/mds/MDS.cc b/src/mds/MDS.cc
index 75dcf9e6dba410db9148f42097cd59a617f44b06..095d860c977ab0fbe4836e6569d73aefbf16c37c 100644 (file)
--- a/src/mds/MDS.cc
+++ b/src/mds/MDS.cc
@@ -1834,7 +1834,7 @@ bool MDS::_dispatch(Message *m)
   }
 
   // finish any triggered contexts
-  while (finished_queue.size()) {
+  while (!finished_queue.empty()) {
     dout(7) << "mds has " << finished_queue.size() << " queued contexts" << dendl;
     dout(10) << finished_queue << dendl;
     list<Context*> ls;