From babea49ebe010d0a533b5db20fa63c327402a71c Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Mon, 28 Apr 2014 18:43:34 +0200 Subject: [PATCH] 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 Signed-off-by: Lars Ellenberg Signed-off-by: Jens Axboe --- drivers/block/drbd/drbd_nl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index f4d3aff..1b35c45 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); -- 2.7.4