drbd: There might be a resync after unfreezing IO due to no disk [Bugz 332]

When on-no-data-accessible is set to suspend-io, also consider that
a Primary, SyncTarget node losses its connection.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

1 files changed, 5 insertions, 7 deletions

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 755297a15633..9bd53cf2cdb2 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1347,16 +1347,14 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 
         nsm.i = -1;
         if (ns.susp_nod) {
-                if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED) {
-                        if (ns.conn == C_CONNECTED)
-                                what = resend, nsm.susp_nod = 0;
-                        else /* ns.conn > C_CONNECTED */
-                                dev_err(DEV, "Unexpected Resync going on!\n");
-                }
+                if (os.conn < C_CONNECTED && ns.conn >= C_CONNECTED)
+                        what = resend;
 
                 if (os.disk == D_ATTACHING && ns.disk > D_ATTACHING)
-                        what = restart_frozen_disk_io, nsm.susp_nod = 0;
+                        what = restart_frozen_disk_io;
 
+                if (what != nothing)
+                        nsm.susp_nod = 0;
         }
 
         if (ns.susp_fen) {