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drbd: Fix disconnect to keep the peer disk state if connection breaks during operation

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The issue was that if the connection broke while we did the
gracefull state change to C_DISCONNECTING (C_TEARDOWN), then
we returned a success code from the state engine. (SS_CW_NO_NEED)

The result of that is that we missed to call the fence-peer
script in such a case.

Fixed that by introducing a new error code (SS_OUTDATE_WO_CONN).
This one should never reach back into user space.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Philipp Reisner
2013-03-27 14:08:40 +01:00
committed by Jens Axboe
parent bb45185de2
commit 2bd5ed5d67
4 changed files with 15 additions and 10 deletions
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3
include/linux/drbd.h
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@@ -319,7 +319,8 @@ enum drbd_state_rv {
SS_IN_TRANSIENT_STATE = -18, /* Retry after the next state change */
SS_CONCURRENT_ST_CHG = -19, /* Concurrent cluster side state change! */
SS_O_VOL_PEER_PRI = -20,
SS_AFTER_LAST_ERROR = -21, /* Keep this at bottom */
SS_OUTDATE_WO_CONN = -21,
SS_AFTER_LAST_ERROR = -22, /* Keep this at bottom */
};
/* from drbd_strings.c */