cls_rbd: fix signed-ness warning

Signed-off-by: Josh Durgin <josh.durgin@inktank.com>

diff --git a/src/cls_rbd.cc b/src/cls_rbd.cc
index 319732cfdb6bc8c7548698e08e58b53986b8d30e..ae178e14cb639b4914378b8b6a6a4a1956d808af 100644 (file)
--- a/src/cls_rbd.cc
+++ b/src/cls_rbd.cc
@@ -858,7 +858,7 @@ int get_snapcontext(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
   CLS_LOG(20, "get_snapcontext");
 
   int r;
-  uint64_t max_read = RBD_MAX_KEYS_READ;
+  int max_read = RBD_MAX_KEYS_READ;
   vector<snapid_t> snap_ids;
   string last_read = RBD_SNAP_KEY_PREFIX;