5 files changed, 11 insertions, 6 deletions
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index b2f21aa00719..cf9ba6fd7a28 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -935,7 +935,7 @@ int dlm_comm_seq(int nodeid, uint32_t *seq, bool locked)
 		mutex_unlock(&clusters_root.subsys.su_mutex);
 	}
 	if (!cm)
-		return -EEXIST;
+		return -ENOENT;
 
 	*seq = cm->seq;
 	put_comm(cm);
diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index e48c4f9686d3..13a3d0b26194 100644
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -23,7 +23,7 @@ struct dlm_config_node {
 
 extern const struct rhashtable_params dlm_rhash_rsb_params;
 
-#define DLM_MAX_ADDR_COUNT 3
+#define DLM_MAX_ADDR_COUNT 8
 
 #define DLM_PROTO_TCP	0
 #define DLM_PROTO_SCTP	1
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index c8ff88f1cdcf..e01d5f29f4d2 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -741,6 +741,7 @@ static int find_rsb_dir(struct dlm_ls *ls, const void *name, int len,
 	read_lock_bh(&ls->ls_rsbtbl_lock);
 	if (!rsb_flag(r, RSB_HASHED)) {
 		read_unlock_bh(&ls->ls_rsbtbl_lock);
+		error = -EBADR;
 		goto do_new;
 	}
 	
@@ -784,6 +785,7 @@ static int find_rsb_dir(struct dlm_ls *ls, const void *name, int len,
 		}
 	} else {
 		write_unlock_bh(&ls->ls_rsbtbl_lock);
+		error = -EBADR;
 		goto do_new;
 	}
 
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 8afac6e2dff0..1929327ffbe1 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -576,7 +576,7 @@ static int new_lockspace(const char *name, const char *cluster,
 	   lockspace to start running (via sysfs) in dlm_ls_start(). */
 
 	error = do_uevent(ls, 1);
-	if (error)
+	if (error < 0)
 		goto out_recoverd;
 
 	/* wait until recovery is successful or failed */
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index d28141829c05..90abcd07f889 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -160,6 +160,7 @@ struct dlm_proto_ops {
 	bool try_new_addr;
 	const char *name;
 	int proto;
+	int how;
 
 	void (*sockopts)(struct socket *sock);
 	int (*bind)(struct socket *sock);
@@ -810,7 +811,7 @@ static void shutdown_connection(struct connection *con, bool and_other)
 		return;
 	}
 
-	ret = kernel_sock_shutdown(con->sock, SHUT_WR);
+	ret = kernel_sock_shutdown(con->sock, dlm_proto_ops->how);
 	up_read(&con->sock_lock);
 	if (ret) {
 		log_print("Connection %p failed to shutdown: %d will force close",
@@ -1826,8 +1827,8 @@ static int dlm_tcp_listen_validate(void)
 {
 	/* We don't support multi-homed hosts */
 	if (dlm_local_count > 1) {
-		log_print("TCP protocol can't handle multi-homed hosts, try SCTP");
-		return -EINVAL;
+		log_print("Detect multi-homed hosts but use only the first IP address.");
+		log_print("Try SCTP, if you want to enable multi-link.");
 	}
 
 	return 0;
@@ -1858,6 +1859,7 @@ static int dlm_tcp_listen_bind(struct socket *sock)
 static const struct dlm_proto_ops dlm_tcp_ops = {
 	.name = "TCP",
 	.proto = IPPROTO_TCP,
+	.how = SHUT_WR,
 	.sockopts = dlm_tcp_sockopts,
 	.bind = dlm_tcp_bind,
 	.listen_validate = dlm_tcp_listen_validate,
@@ -1896,6 +1898,7 @@ static void dlm_sctp_sockopts(struct socket *sock)
 static const struct dlm_proto_ops dlm_sctp_ops = {
 	.name = "SCTP",
 	.proto = IPPROTO_SCTP,
+	.how = SHUT_RDWR,
 	.try_new_addr = true,
 	.sockopts = dlm_sctp_sockopts,
 	.bind = dlm_sctp_bind,