drbd: Refuse to change network options online when...
* the peer does not speak protocol_version 100 and the
user wants to change one of:
- wire_protocol
- two_primaries
- integrity_alg
* the user wants to remove the allow_two_primaries flag
when there are two primaries
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index 05063e6..679e811 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -161,6 +161,7 @@
ERR_MINOR_EXISTS = 161,
ERR_INVALID_REQUEST = 162,
ERR_NEED_APV_100 = 163,
+ ERR_NEED_ALLOW_TWO_PRI = 164,
/* insert new ones above this line */
AFTER_LAST_ERR_CODE