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drbd: Refuse to change network options online when...

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* 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>
This commit is contained in:
Philipp Reisner
2011-05-16 14:30:24 +02:00
parent c5482bbd96
commit dcb20d1a8e
2 changed files with 19 additions and 4 deletions
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include/linux/drbd.h
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@@ -161,6 +161,7 @@ enum drbd_ret_code {
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