[GIT PULL] (xen) stable/for-jens-3.2 - blkback and blkfront patchesfor 3.2

[Konrad Rzeszutek Wilk]

Hey Jens,

Please pull the following git tree in your 3.2 drivers tree:

 git pull git://oss.oracle.com/git/kwilk/xen.git stable/for-jens-3.2

which has an exciting new feature - the discard ('feature-discard')
aka TRIM/UNMAP. Now they can be passed from the guest to the backend.

There is also a tiny cleanup patch.

 drivers/block/xen-blkback/blkback.c |   86 +++++++++++++++++++++++-----
 drivers/block/xen-blkback/common.h  |   95 ++++++++++++++++++++++++------
 drivers/block/xen-blkback/xenbus.c  |   62 +++++++++++++++++++-
 drivers/block/xen-blkfront.c        |  109 +++++++++++++++++++++++++++-------
 include/xen/interface/io/blkif.h    |   36 ++++++++++++
 5 files changed, 331 insertions(+), 57 deletions(-)

Joe Jin (1):
      xen-blkback: fixed indentation and comments

Li Dongyang (4):
      xen-blkfront: add BLKIF_OP_DISCARD and discard request struct
      xen-blkback: Implement discard requests ('feature-discard')
      xen-blkfront: Handle discard requests.
      xen-blkfront: fix a deadlock while handling discard response

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