[Xen-devel] [GIT PULL] (xen) stable/for-jens-4.2 for rc4

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

Hey Jens,

There are three bugs that have been found in the xen-blkfront (and
backend). Two of them have the stable tree CC-ed. They have been found
where an guest is migrating to a host that is missing 'feature-persistent'
support (from one that has it enabled). We end up hitting an BUG() in the
driver code.

Please git pull the following branch:

git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen.git stable/for-jens-4.2

which has the outlined changes. The branch is based on your
'for-4.2/drivers' branch but it also nicely applies to Linus's tree and
your 'for-linus'.

 drivers/block/xen-blkback/blkback.c |   4 +-
 drivers/block/xen-blkfront.c        | 128 ++++++++++++++++++++----------------
 2 files changed, 74 insertions(+), 58 deletions(-)

Bob Liu (3):
      xen-blkfront: introduce blkfront_gather_backend_features()
      xen-blkfront: don't add indirect pages to list when !feature_persistent
      xen-blkback: replace work_pending with work_busy in purge_persistent_gnt()

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