From: Philipp Reisner <philipp.reisner@linbit.com>
To: linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: drbd-dev@lists.linbit.com
Subject: [PATCH 14/18] drbd: Allow a Diskless Secondary volume to be removed
Date: Thu, 1 Sep 2011 14:49:01 +0200 [thread overview]
Message-ID: <1314881345-6420-15-git-send-email-philipp.reisner@linbit.com> (raw)
In-Reply-To: <1314881345-6420-1-git-send-email-philipp.reisner@linbit.com>
From: Lars Ellenberg <lars.ellenberg@linbit.com>
Even if the connection is still established.
We should be able to reduce a volume from a replication group,
without taking the whole group offline.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
drivers/block/drbd/drbd_nl.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index c389995..740649b 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -248,6 +248,8 @@ static int drbd_adm_prepare(struct sk_buff *skb, struct genl_info *info,
drbd_msg_put_info("over-determined configuration context mismatch");
return ERR_INVALID_REQUEST;
}
+ if (adm_ctx.mdev && !adm_ctx.tconn)
+ adm_ctx.tconn = adm_ctx.mdev->tconn;
return NO_ERROR;
fail:
@@ -2676,10 +2678,15 @@ int drbd_adm_delete_minor(struct sk_buff *skb, struct genl_info *info)
mdev = adm_ctx.mdev;
if (mdev->state.disk == D_DISKLESS &&
- mdev->state.conn == C_STANDALONE &&
+ /* no need to be mdev->state.conn == C_STANDALONE &&
+ * we may want to delete a minor from a live replication group.
+ */
mdev->state.role == R_SECONDARY) {
drbd_delete_device(mdev_to_minor(mdev));
retcode = NO_ERROR;
+ /* if this was the last volume of this connection,
+ * this will terminate all threads */
+ conn_reconfig_done(adm_ctx.tconn);
} else
retcode = ERR_MINOR_CONFIGURED;
out:
--
1.7.4.1
next prev parent reply other threads:[~2011-09-01 12:50 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-01 12:48 [RFC 00/18] drbd: part 4 of adding multiple volume support to drbd Philipp Reisner
2011-09-01 12:48 ` [PATCH 01/18] drbd: default to detach on-io-error Philipp Reisner
2011-09-01 12:48 ` [PATCH 02/18] drbd: only wakeup if something changed in update_peer_seq Philipp Reisner
2011-09-01 12:48 ` [PATCH 03/18] drbd: add page pool to be used for meta data IO Philipp Reisner
2011-09-01 12:48 ` [PATCH 04/18] drbd: use the newly introduced page pool for bitmap IO Philipp Reisner
2011-09-01 12:48 ` [PATCH 05/18] drbd: introduce a bio_set to allocate housekeeping bios from Philipp Reisner
2011-09-01 12:48 ` [PATCH 06/18] drbd: fix drbd_delete_device: remove vnr from volumes; idr_remove(); synchronize_rcu(); before cleanup Philipp Reisner
2011-09-01 12:48 ` [PATCH 07/18] drbd: get rid of drbd_bcast_ee, it is of no use anymore Philipp Reisner
2011-09-01 12:48 ` [PATCH 08/18] drbd: prepare the transition from connector to genetlink Philipp Reisner
2011-09-01 12:48 ` [PATCH 09/18] drbd: switch configuration interface " Philipp Reisner
2011-09-01 12:48 ` [PATCH 10/18] drbd: allow holes in minor and volume id allocation Philipp Reisner
2011-09-01 12:48 ` [PATCH 11/18] drbd: remove now unused connector related files Philipp Reisner
2011-09-01 12:48 ` [PATCH 12/18] drbd: drbd_adm_get_status needs to show some more detail Philipp Reisner
2011-09-01 12:49 ` [PATCH 13/18] drbd: simplify conn_all_vols_unconf, make it bool Philipp Reisner
2011-09-01 12:49 ` Philipp Reisner [this message]
2011-09-01 12:49 ` [PATCH 15/18] drbd: new-connection and new-minor succeed, if the object already exists Philipp Reisner
2011-09-01 12:49 ` [PATCH 16/18] drbd: bail out if a config requrest is over-determined, and not matching Philipp Reisner
2011-09-01 12:49 ` [PATCH 17/18] drbd: add forgotten spin_unlock Philipp Reisner
2011-09-01 12:49 ` [PATCH 18/18] drbd: introduce in-kernel "down" command Philipp Reisner
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