Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-for-peter-2016-02...

Block patches

# gpg: Signature made Tue 02 Feb 2016 17:23:44 GMT using RSA key ID E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"

* remotes/maxreitz/tags/pull-block-for-peter-2016-02-02: (50 commits)
  block: qemu-iotests - add test for snapshot, commit, snapshot bug
  block: set device_list.tqe_prev to NULL on BDS removal
  iotests: Add "qemu-img map" test for VMDK extents
  qemu-img: Make MapEntry a QAPI struct
  qemu-img: In "map", use the returned "file" from bdrv_get_block_status
  block: Use returned *file in bdrv_co_get_block_status
  vmdk: Return extent's file in bdrv_get_block_status
  vmdk: Fix calculation of block status's offset
  vpc: Assign bs->file->bs to file in vpc_co_get_block_status
  vdi: Assign bs->file->bs to file in vdi_co_get_block_status
  sheepdog: Assign bs to file in sd_co_get_block_status
  qed: Assign bs->file->bs to file in bdrv_qed_co_get_block_status
  parallels: Assign bs->file->bs to file in parallels_co_get_block_status
  iscsi: Assign bs to file in iscsi_co_get_block_status
  raw: Assign bs to file in raw_co_get_block_status
  qcow2: Assign bs->file->bs to file in qcow2_co_get_block_status
  qcow: Assign bs->file->bs to file in qcow_co_get_block_status
  block: Add "file" output parameter to block status query functions
  block: acquire in bdrv_query_image_info
  iotests: Add test for block jobs and BDS ejection
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>