SERVER-20214 Stop supporting majority read concern level with MapReduce and Aggregation $out

1 files changed, 3 insertions, 3 deletions

diff --git a/src/mongo/db/repl/read_concern_args.cpp b/src/mongo/db/repl/read_concern_args.cpp
index 1389a7380a1..20b179f8033 100644
--- a/src/mongo/db/repl/read_concern_args.cpp
+++ b/src/mongo/db/repl/read_concern_args.cpp
@@ -67,13 +67,13 @@ OpTime ReadConcernArgs::getOpTime() const {
     return _opTime.value_or(OpTime());
 }
 
-Status ReadConcernArgs::initialize(const BSONObj& cmdObj) {
-    auto readConcernElem = cmdObj[ReadConcernArgs::kReadConcernFieldName];
-
+Status ReadConcernArgs::initialize(const BSONElement& readConcernElem) {
     if (readConcernElem.eoo()) {
         return Status::OK();
     }
 
+    dassert(readConcernElem.fieldNameStringData() == kReadConcernFieldName);
+
     if (!readConcernElem.isABSONObj()) {
         return Status(ErrorCodes::FailedToParse,
                       str::stream() << kReadConcernFieldName << " field should be an object");