From: Philipp Reisner Date: Mon, 28 Mar 2011 10:55:03 +0000 (+0200) Subject: drbd: Allow to disconnect if one volume is diskless X-Git-Tag: firefly_0821_release~3680^2~1419^2~18^2~317 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=778bcf2e290fc9f13735c32640cdafb34794ebd1;p=firefly-linux-kernel-4.4.55.git drbd: Allow to disconnect if one volume is diskless Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 3243c7849914..b9bcb8bf7ec2 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3447,7 +3447,7 @@ static int receive_req_conn_state(struct drbd_tconn *tconn, struct packet_info * mask = convert_state(mask); val = convert_state(val); - rv = conn_request_state(tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY); + rv = conn_request_state(tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY | CS_IGN_OUTD_FAIL); conn_send_sr_reply(tconn, rv); return 0; diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index 164a7f821c78..ca77da38a0dc 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -1433,6 +1433,9 @@ conn_is_valid_transition(struct drbd_tconn *tconn, union drbd_state mask, union os = mdev->state; ns = sanitize_state(mdev, apply_mask_val(os, mask, val), NULL); + if (flags & CS_IGN_OUTD_FAIL && ns.disk == D_OUTDATED && os.disk < D_OUTDATED) + ns.disk = os.disk; + if (ns.i == os.i) continue; @@ -1475,6 +1478,9 @@ conn_set_state(struct drbd_tconn *tconn, union drbd_state mask, union drbd_state ns = apply_mask_val(os, mask, val); ns = sanitize_state(mdev, ns, NULL); + if (flags & CS_IGN_OUTD_FAIL && ns.disk == D_OUTDATED && os.disk < D_OUTDATED) + ns.disk = os.disk; + rv = __drbd_set_state(mdev, ns, flags, NULL); if (rv < SS_SUCCESS) BUG(); diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h index 11fd0f897bdb..c0331f18371a 100644 --- a/drivers/block/drbd/drbd_state.h +++ b/drivers/block/drbd/drbd_state.h @@ -69,6 +69,7 @@ enum chg_state_flags { CS_DC_DISK = 1 << 8, CS_DC_PDSK = 1 << 9, CS_DC_MASK = CS_DC_ROLE + CS_DC_PEER + CS_DC_CONN + CS_DC_DISK + CS_DC_PDSK, + CS_IGN_OUTD_FAIL = 1 << 10, }; extern enum drbd_state_rv drbd_change_state(struct drbd_conf *mdev,