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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2014-03-20 11:19:22 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2014-07-10 18:35:02 +0200 |
| commit | 08d0dabf48ccf55e310b8ae9381858b477cabe2e (patch) | |
| tree | f59b53661650af6df67e71e958ca981ec0e2cdd6 /drivers/block/drbd/drbd_main.c | |
| parent | 5d0b17f1a29e8189d04aef447a3a53cfd05529b2 (diff) | |
| download | linux-08d0dabf48ccf55e310b8ae9381858b477cabe2e.tar.gz linux-08d0dabf48ccf55e310b8ae9381858b477cabe2e.tar.bz2 linux-08d0dabf48ccf55e310b8ae9381858b477cabe2e.zip | |
drbd: application writes may set-in-sync in protocol != C
If "dirty" blocks are written to during resync,
that brings them in-sync.
By explicitly requesting write-acks during resync even in protocol != C,
we now can actually respect this.
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_main.c')
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 7c060243ae46..7ada5d363064 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1639,7 +1639,10 @@ int drbd_send_dblock(struct drbd_peer_device *peer_device, struct drbd_request * if (peer_device->connection->agreed_pro_version >= 100) { if (req->rq_state & RQ_EXP_RECEIVE_ACK) dp_flags |= DP_SEND_RECEIVE_ACK; - if (req->rq_state & RQ_EXP_WRITE_ACK) + /* During resync, request an explicit write ack, + * even in protocol != C */ + if (req->rq_state & RQ_EXP_WRITE_ACK + || (dp_flags & DP_MAY_SET_IN_SYNC)) dp_flags |= DP_SEND_WRITE_ACK; } p->dp_flags = cpu_to_be32(dp_flags); |