crimson/net: set TCP_NODELAY according to ms_tcp_nodelay

There are cases in which we need low latency of an individual op, like
updating RBD image's object map which would block other ops for a
object not created yet. We need to make sure the rbd-object-map-update
like ops have as low latency as possible

Fixes: https://tracker.ceph.com/issues/62098
Signed-off-by: Xuehan Xu <[email protected]>

Author: xxhdx1985126

src/crimson/net/Socket.cc

@@ -103,6 +103,9 @@ Socket::Socket(
     side(_side),
     ephemeral_port(e_port)
 {
+  if (local_conf()->ms_tcp_nodelay) {
+    socket.set_nodelay(true);
+  }
 }
 
 Socket::~Socket()