Commit babea49e authored Apr 28, 2014 by Philipp Reisner Committed by Jens Axboe Apr 30, 2014

drbd: Allow attaching of a newly created device to any backing device



A newly created device was never exposed before, i.e. has a
exposed_data_uuid of 0. Then it is valid to attach to any current_uuid
of a backing device (of course also to a newly created one (4))

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

parent 02df6fe1

drivers/block/drbd/drbd_nl.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1662,7 +1662,7 @@ int drbd_adm_attach(struct sk_buff skb, struct genl_info info)
		}

		if (device->state.conn < C_CONNECTED &&
		device->state.role == R_PRIMARY &&
		device->state.role == R_PRIMARY && device->ed_uuid &&
		(device->ed_uuid & ~((u64)1)) != (nbc->md.uuid[UI_CURRENT] & ~((u64)1))) {
		drbd_err(device, "Can only attach to data with current UUID=%016llX\n",
		(unsigned long long)device->ed_uuid);

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