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alistair23-linux
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drbd: fix spurious protocol error 

If we cannot satisfy a request (because our disk just broke),
we still need to drain the payload.  Or we'll get a protocol error
when interpreting the payload as DRBD packet header.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
hifive-unleashed-5.1
Lars Ellenberg 2010-09-06 12:31:37 +02:00 committed by Philipp Reisner
parent 1d53f09e17
commit a821cc4a9a
1 changed files with 2 additions and 1 deletions
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3
drivers/block/drbd/drbd_receiver.c
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@ -2085,7 +2085,8 @@ static int receive_DataRequest(struct drbd_conf *mdev, enum drbd_packets cmd, un
"no local data.\n");
drbd_send_ack_rp(mdev, cmd == P_DATA_REQUEST ? P_NEG_DREPLY :
P_NEG_RS_DREPLY , p);
return TRUE;
/* drain possibly payload */
return drbd_drain_block(mdev, digest_size);
}
/* GFP_NOIO, because we must not cause arbitrary write-out: in a DRBD