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[Launchpad Bug Tracker <1360428@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.16.0-11.16

---------------
linux (3.16.0-11.16) utopic; urgency=low

  [ Mauricio Faria de Oliveira ]

  * [Config] Switch kernel to vmlinuz (from vmlinux) on ppc64el
    - LP: #1358920

  [ Peter Zijlstra ]

  * SAUCE: (no-up) mmu_notifier: add call_srcu and sync function for listener to delay call and sync
    - LP: #1361300

  [ Tim Gardner ]

  * [Config] CONFIG_ZPOOL=y
    - LP: #1360428
  * Release Tracking Bug
    - LP: #1361308

  [ Upstream Kernel Changes ]

  * Revert "net/mlx4_en: Fix bad use of dev_id"
    - LP: #1347012
  * net/mlx4_en: Reduce memory consumption on kdump kernel
    - LP: #1347012
  * net/mlx4_en: Fix mac_hash database inconsistency
    - LP: #1347012
  * net/mlx4_en: Disable blueflame using ethtool private flags
    - LP: #1347012
  * net/mlx4_en: current_mac isn't updated in port up
    - LP: #1347012
  * net/mlx4_core: Use low memory profile on kdump kernel
    - LP: #1347012
  * Drivers: scsi: storvsc: Change the limits to reflect the values on the host
    - LP: #1347169
  * Drivers: scsi: storvsc: Set cmd_per_lun to reflect value supported by the Host
    - LP: #1347169
  * Drivers: scsi: storvsc: Filter commands based on the storage protocol version
    - LP: #1347169
  * Drivers: scsi: storvsc: Fix a bug in handling VMBUS protocol version
    - LP: #1347169
  * Drivers: scsi: storvsc: Implement a eh_timed_out handler
    - LP: #1347169
  * drivers: scsi: storvsc: Set srb_flags in all cases
    - LP: #1347169
  * drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure
    - LP: #1347169
  * namespaces: Use task_lock and not rcu to protect nsproxy
    - LP: #1328088
  * net: xgene: Check negative return value of xgene_enet_get_ring_size()
  * mm/zbud: change zbud_alloc size type to size_t
    - LP: #1360428
  * mm/zpool: implement common zpool api to zbud/zsmalloc
    - LP: #1360428
  * mm/zpool: zbud/zsmalloc implement zpool
    - LP: #1360428
  * mm/zpool: update zswap to use zpool
    - LP: #1360428
  * ideapad-laptop: Change Lenovo Yoga 2 series rfkill handling
    - LP: #1341296
  * iommu/amd: Fix for pasid initialization
    - LP: #1361300
  * iommu/amd: Moving PPR fault flags macros definitions
    - LP: #1361300
  * iommu/amd: Drop oprofile dependency
    - LP: #1361300
  * iommu/amd: Fix typo in amd_iommu_v2 driver
    - LP: #1361300
  * iommu/amd: Don't call mmu_notifer_unregister in __unbind_pasid
    - LP: #1361300
  * iommu/amd: Don't free pasid_state in mn_release path
    - LP: #1361300
  * iommu/amd: Get rid of __unbind_pasid
    - LP: #1361300
  * iommu/amd: Drop pasid_state reference in ppr_notifer error path
    - LP: #1361300
  * iommu/amd: Add pasid_state->invalid flag
    - LP: #1361300
  * iommu/amd: Don't hold a reference to mm_struct
    - LP: #1361300
  * iommu/amd: Don't hold a reference to task_struct
    - LP: #1361300
  * iommu/amd: Don't call the inv_ctx_cb when pasid is not set up
    - LP: #1361300
  * iommu/amd: Don't set pasid_state->mm to NULL in unbind_pasid
    - LP: #1361300
  * iommu/amd: Remove change_pte mmu_notifier call-back
    - LP: #1361300
  * iommu/amd: Fix device_state reference counting
    - LP: #1361300
  * iommu/amd: Fix 2 typos in comments
    - LP: #1361300
 -- Tim Gardner <tim.gardner@xxxxxxxxxxxxx>   Fri, 22 Aug 2014 08:45:54 -0400

** Changed in: linux (Ubuntu Utopic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1360428

Title:
  Feature: Add zpool patchset to ubuntu 14.10

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Utopic:
  Fix Released

Bug description:
  The zpool patch set allows zswap to use either zbud or zsmalloc for
  its compressed storage.  The patches are upstream now and will be in
  3.17.

  All 4 patches backported to ubuntu 14.10 kernel - only patch 2
  required a minor context change.  Taken from upstream patches (listed
  in reverse order of attached patches):

  12d79d6 mm/zpool: update zswap to use zpool
  c795779 mm/zpool: zbud/zsmalloc implement zpool
  af8d417 mm/zpool: implement common zpool api to zbud/zsmalloc
  99eef8e mm/zbud: change zbud_alloc size type to size_t

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