diff options
| author | Philipp Reisner <philipp.reisner@linbit.com> | 2012-04-06 12:07:34 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-08 16:58:26 +0100 |
| commit | a1096a6e9da7885ec9e11d93aa459685a33fa4d9 (patch) | |
| tree | 36ee9aba8823ed51b0c71176df5f2b891ba0c06a /drivers/block/drbd/drbd_int.h | |
| parent | 27eb13e99b515c52ba5a151a1acce6afb8a9b2b6 (diff) | |
drbd: Delay/reject other state changes while establishing a connection
Changes to the role and disk state should be delayed or rejected
while we establish a connection.
This is necessary, since the peer will base its resync decision
on the UUIDs and the state we sent in the drbd_connect() function.
The most prominent example for this race is becoming primary after
sending state and UUIDs and before the state changes to C_WF_CONNECTION.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 85769085485..4fad3f565ab 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -808,6 +808,7 @@ enum { CONN_WD_ST_CHG_FAIL, CONN_DRY_RUN, /* Expect disconnect after resync handshake. */ CREATE_BARRIER, /* next P_DATA is preceded by a P_BARRIER */ + STATE_SENT, /* Do not change state/UUIDs while this is set */ }; struct drbd_tconn { /* is a resource from the config file */ |