manila/releasenotes/notes/bug-1645751-fixed-shares-created-from-snapshots-for-lvm-and-generic-drivers-94a1161a9e0b5a85.yaml

---
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
[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 2016-12-06 14:32:26 +03:00			`---`
			`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`