This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
bionic' to 'verification-done-bionic'. If the problem still exists,
change the tag 'verification-needed-bionic' to 'verification-failed-
bionic'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-bionic

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https://bugs.launchpad.net/bugs/1759848

Title:
  Allow multiple mounts of zfs datasets

Status in linux package in Ubuntu:
  Fix Released
Status in zfs-linux package in Ubuntu:
  Fix Released
Status in linux source package in Xenial:
  Fix Released
Status in zfs-linux source package in Xenial:
  Fix Released
Status in linux source package in Bionic:
  Fix Released
Status in zfs-linux source package in Bionic:
  Fix Released

Bug description:
  === SRU Justification, Xenial ==

  An attempt to mount an already mounted zfs dataset should return a new
  mount referencing the existing super block, but instead it returns an
  error. Operations such as bind mounts and unsharing mount namespaces
  create new mounts for the sb, which can cause operations to fail which
  involve unmounting and remounting the dataset.

  == Fix ==

  Backport of upstream fix https://trello.com/c/l89Ygj28/352-allow-
  multiple-mounts-of-zfs-datasets to allow multiple mounts

  This fix from Seth addresses this issue

  == Regression potential ==

  Like all backports, this has a potential to be incorrectly backported
  and break the ZFS mounting. However, any breakage should be picked up
  via the ZFS smoke tests that thoroughly exercise mounting/dismounting
  options.  At worst, the mounting won't work, but this has been tested,
  so I doubt this is a possibility.

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