manila/releasenotes/notes/bug-1645751-fixed-shares-created-from-snapshots-for-lvm-and-generic-drivers-94a1161a9e0b5a85.yaml
Valeriy Ponomaryov c93e812a58 [LVM,Generic drivers] Fix relationships between parent and child shares
Reportedly [1], the kernel-nfs-server has a bug where we have overlap of
filesystem identifiers using LVM volumes and their snapshots.

We face this bug in manila LVM driver and Generic driver when we use
cinder LVM driver. So, fix it generating unique UUID for all
snapshots (only for LVM, because we cannot do it in Generic driver
while we do not have "mount-snapshot" feature support there) and
child volumes that will be exported as child shares.

[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1071733

Change-Id: Ib93bfb0d4184da1e70ecece6fde6931e44d05a30
Closes-Bug: #1645751
2016-12-09 20:23:26 +03:00

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fixes:
- Fixed shares created from snapshots on the LVM and Generic drivers to
no longer share the same filesystem handle as the source shares.
The cause was the same as described in Ubuntu launchpad bug
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1071733