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authorPhilipp Reisner <philipp.reisner@linbit.com>2014-04-28 18:43:34 +0200
committerJens Axboe <axboe@fb.com>2014-04-30 13:46:56 -0600
commitbabea49ebe010d0a533b5db20fa63c327402a71c (patch)
tree57e28edd86ab3cd390583abcd858f9629eeda213 /drivers/block
parent02df6fe145715f1d3858c0c65aed991f148b70b4 (diff)
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>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/drbd/drbd_nl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index f4d3aff89aa1..1b35c45c92b7 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -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);