From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Tue, 17 May 2011 12:48:55 +0000 (+0200)
Subject: drbd: Disallow the peer_disk_state to be D_OUTDATED while connected
X-Git-Tag: firefly_0821_release~7613^2~1152^2~8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fa7d939663b61f5c2bd3436d3aa126d4c0f47aa8;p=firefly-linux-kernel-4.4.55.git

drbd: Disallow the peer_disk_state to be D_OUTDATED while connected

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

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index fd308864833f..ce6a764e905b 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -745,6 +745,9 @@ is_valid_state(struct drbd_conf *mdev, union drbd_state ns)
 		  mdev->agreed_pro_version < 88)
 		rv = SS_NOT_SUPPORTED;
 
+	else if (ns.conn >= C_CONNECTED && ns.pdsk == D_UNKNOWN)
+		rv = SS_CONNECTED_OUTDATES;
+
 	return rv;
 }