This patch is required when using drbd devices under the new xen toolstack (libxl)

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Remove stray tarball.

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- Build drbd KMPs.

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- Update to official 8.4.4
- drbd: evaluate disk and network timeout on different requests
- drbd: Fix a hole in the challange-response connection authentication
- drbd: always implicitly close last epoch when idle
- drbd: add back some fairness to AL transactions
- drbd: keep max-bio size during detach/attach on disconnected primary
- drbd: fix a race between start_resync and send_and_submit
- drbd: fix deadlock in discard fallback code

- Update to 8.4.4rc2
- fix potential deadlock when concurrently fencing and establishing a
  connection
- fix potential distributed deadlock during verify or resync
- fix decoding of bitmap vli rle for device sizes > 64 TB
- fix for deadlock when using automatic split-brain-recovery
- only fail empty flushes if no good data is reachable
- avoid to shrink max_bio_size due to peer re-configuration
- fix resume-io after reconnect with broken fence-peer handler
- crm-fence-peer: less cib polling, peer-alive detection using crmadmin,
  and other improvements
- OCF RA: avoid too tight pacemaker driven recovery loop on failed
  promote, implement adjust_master_score parameter
- fix too large bursts for very slow resync rates
- don't let application IO throttle resync to a stall
- Fixed attaching to disks with fixed size external meta-data (This
  regressions was introduced with 8.4.3)
- Fixed a crash when the connection broke at a very exact point in time
  while a graceful disconnect executes
- Support for REQ_DISCARD
- Allow parallel promote/demote

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- Update drbd version string in specfile so that a future 8.4.4 check-in
  will be considered newer than 8.4.4rc1.
- Clean-up specfile based on spec-cleaner

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Updated changelog from upstream.

- fix decoding of bitmap vli rle for device sizes > 64 TB
- fix for deadlock when using automatic split-brain-recovery
- only fail empty flushes if no good data is reachable
- avoid to shrink max_bio_size due to peer re-configuration
- fix resume-io after reconnect with broken fence-peer handler
- fencing script improvements
- Fixed attaching to disks with fixed size external meta-data (This
  regressions was introduced with 8.4.3)
- Allow online changing of al-stripes and al-stripe-size with the resize
  command
- drbdadm adjust now deals with IP-address changes correctly
- Align the internal object model with drbd-9.0 (away from drbd-8.3)
- Do not end up in Unconnected state if the connection breaks at a
  certain point during the handshake (was introduced with 8.3.12)
- Closed a race condition between promoting and connection handshake,
  that could lead to an inconsistent view of the peer's UUIDS
- Fixed a race condition that could lead to a full sync, if connection
  breaks at a certain point while starting a regular resync
- Fixed crm-fence-peer.sh for pacemaker 1.1.8
- Fixed a list corruption for read requests that complete with an error
  after they were aborted
- Fixed a kernel panic if the device size was an exact multiple of
  128MiB
- Fixed a potential memory allocation during deadlock online resize
- Improve the handling of read-errors: Make sure that sectors that had a
  read error are overwritten with data from the peer on the next resync
- Expose the data-generation-uuids through /sys/block/drbdXX/drbd/
- The new flag --peer-max-bio-size for drbdmeta create-md is of use if
  you plan to use the device for long time without peer
- Fixed a potential protocol error and resulting disconnect/reconnect,

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- Update to drbd 8.4.4rc1
- Disable heartbeat support (heartbeat no longer ships on openSUSE)

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