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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2010-06-22 14:03:27 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2010-10-14 15:01:37 +0200 |
| commit | 481c6f503213ab14f69ce88fff7b1ece325522f2 (patch) | |
| tree | 6d6da7d5e2893349116cfc89e6b7c755965c723a /drivers/block | |
| parent | 43a5182cccae5850f7590f78dd9651bd407be440 (diff) | |
| download | kernel_samsung_aries-481c6f503213ab14f69ce88fff7b1ece325522f2.zip kernel_samsung_aries-481c6f503213ab14f69ce88fff7b1ece325522f2.tar.gz kernel_samsung_aries-481c6f503213ab14f69ce88fff7b1ece325522f2.tar.bz2 | |
drbd: Ensure that the peer was not rebootet in the meantime before resending TL
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 3 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 13 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_req.c | 2 |
3 files changed, 13 insertions, 5 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index d764f3c..921793c 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -208,9 +208,6 @@ enum drbd_disk_state drbd_try_outdate_peer(struct drbd_conf *mdev) return mdev->state.pdsk; } - if (fp == FP_STONITH) - _drbd_request_state(mdev, NS(susp, 1), CS_WAIT_COMPLETE); - r = drbd_khelper(mdev, "fence-peer"); switch ((r>>8) & 0xff) { diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 101ad18..3a8131a 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3265,7 +3265,18 @@ static int receive_state(struct drbd_conf *mdev, struct p_header *h) ns.peer_isp = (peer_state.aftr_isp | peer_state.user_isp); if ((nconn == C_CONNECTED || nconn == C_WF_BITMAP_S) && ns.disk == D_NEGOTIATING) ns.disk = mdev->new_state_tmp.disk; - + if (ns.pdsk == D_CONSISTENT && ns.susp && nconn == C_CONNECTED && oconn < C_CONNECTED && + test_bit(NEW_CUR_UUID, &mdev->flags)) { + /* Do not allow tl_restart(resend) for a rebooted peer. We can only allow this + for temporal network outages! */ + spin_unlock_irq(&mdev->req_lock); + dev_err(DEV, "Aborting Connect, can not thaw IO with an only Consistent peer\n"); + tl_clear(mdev); + drbd_uuid_new_current(mdev); + clear_bit(NEW_CUR_UUID, &mdev->flags); + drbd_force_state(mdev, NS2(conn, C_PROTOCOL_ERROR, susp, 0)); + return FALSE; + } rv = _drbd_set_state(mdev, ns, CS_VERBOSE | CS_HARD, NULL); ns = mdev->state; spin_unlock_irq(&mdev->req_lock); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index fbe02788..76b6682 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -662,7 +662,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, /* If RQ_NET_OK is already set, we got a P_WRITE_ACK or P_RECV_ACK before the connection loss (B&C only); only P_BARRIER_ACK was missing. Trowing them out of the TL here by pretending we got a BARRIER_ACK - TODO: Either resync them, or ensure peer was not rebooted. */ + We ensure that the peer was not rebooted */ if (!(req->rq_state & RQ_NET_OK)) { if (req->w.cb) { drbd_queue_work(&mdev->data.work, &req->w); |