osd/SnapMapper.cc: use empty() instead of size() == 0

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

diff --git a/src/osd/SnapMapper.cc b/src/osd/SnapMapper.cc
index d6d2749aeeecf24922d133c5242dfd1b523a5eec..315e2e2fe8698d383a2c93cf3352e97e95811ac2 100644 (file)
--- a/src/osd/SnapMapper.cc
+++ b/src/osd/SnapMapper.cc
@@ -140,7 +140,7 @@ int SnapMapper::get_snaps(
   int r = backend.get_keys(keys, &got);
   if (r < 0)
     return r;
-  if (got.size() == 0)
+  if (got.empty())
     return -ENOENT;
   if (out) {
     bufferlist::iterator bp = got.begin()->second.begin();