rados: fix warning

diff --git a/src/rados.cc b/src/rados.cc
index 3e6be037af739b48315bd7c640db45616aa30c49..75576878601ede3f951e789209b298c7a734fe6a 100644 (file)
--- a/src/rados.cc
+++ b/src/rados.cc
@@ -559,7 +559,7 @@ static int rados_tool_common(const std::map < std::string, std::string > &opts,
   uint64_t max_op_len = 0;
   uint64_t max_backlog = 0;
   uint64_t target_throughput = 0;
-  uint64_t read_percent = -1;
+  int64_t read_percent = -1;
   uint64_t num_objs = 0;
   int run_length = 0;