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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>
This commit is contained in:
Philipp Reisner 2014-04-28 18:43:34 +02:00 committed by Jens Axboe
parent 02df6fe145
commit babea49ebe
1 changed files with 1 additions and 1 deletions
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2
drivers/block/drbd/drbd_nl.c
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@ -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);