diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index d35664287e14cfe4189199e9cbe2769f699274bc..a50bdfbbc4295d8ca3486b243ad8c23bb2b06887 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -459,6 +459,8 @@ static bool nfs4_cb_match_client(const struct sockaddr *addr,
 	    clp->cl_cons_state == NFS_CS_SESSION_INITING))
 		return false;
 
+	smp_rmb();
+
 	/* Match the version and minorversion */
 	if (clp->rpc_ops->version != 4 ||
 	    clp->cl_minorversion != minorversion)
@@ -539,6 +541,8 @@ nfs_found_client(const struct nfs_client_initdata *cl_init,
 		return ERR_PTR(error);
 	}
 
+	smp_rmb();
+
 	BUG_ON(clp->cl_cons_state != NFS_CS_READY);
 
 	dprintk("<-- %s found nfs_client %p for %s\n",
@@ -597,6 +601,7 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
  */
 void nfs_mark_client_ready(struct nfs_client *clp, int state)
 {
+	smp_wmb();
 	clp->cl_cons_state = state;
 	wake_up_all(&nfs_client_active_wq);
 }
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 861be75eb1650a5437ab3a9320bd0fbd488036f3..b5b86a05059c8c0cf157495878bad3621a25a8dc 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -548,6 +548,7 @@ static struct nfs_client *nfs_get_client_for_event(struct net *net, int event)
 		/* Skip nfs_clients that failed to initialise */
 		if (clp->cl_cons_state < 0)
 			continue;
+		smp_rmb();
 		if (clp->rpc_ops != &nfs_v4_clientops)
 			continue;
 		cl_dentry = clp->cl_idmap->idmap_pipe->dentry;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index c856298def7d3a0592484c705fc3eb00abc62a35..8f39bb3ca1b31ce177d4a4321a90f79aa500e922 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5621,6 +5621,7 @@ static int nfs41_check_session_ready(struct nfs_client *clp)
 	}
 	if (clp->cl_cons_state < NFS_CS_READY)
 		return -EPROTONOSUPPORT;
+	smp_rmb();
 	return 0;
 }