[Qemu-devel] [PATCH 0/8] iscsi/qemu-img/block-migration enhancements

[Peter Lieven <pl@kamp.de>]

this series adds logical block provisioning functions to the iscsi layer.
it adds the ability to write sparse images to iscsi targets which
support UNMAP and LBPRZ via qemu-img. additional block-migration is
enhanced to support an encoding for zero blocks on the network
and efficiently writing those zero blocks at the destination if
the driver supports it.

many thanks to Paolo, Kevin and Ronnie for their useful comments.

Peter

Peter Lieven (8):
  iscsi: add logical block provisioning information to iscsilun
  iscsi: add bdrv_co_is_allocated
  iscsi: add bdrv_co_write_zeroes
  block: add bdrv_write_zeroes()
  block/raw: add bdrv_co_write_zeroes
  qemu-img: use bdrv_write_zeroes to write zeroes
  iscsi: assert that sectors are aligned to LUN blocksize
  block-migration: efficiently encode zero blocks

 block-migration.c             |   29 ++++--
 block.c                       |   27 +++--
 block/iscsi.c                 |  220 +++++++++++++++++++++++++++++++++++++++++
 block/raw.c                   |    8 ++
 include/block/block.h         |    2 +
 include/migration/qemu-file.h |    1 +
 qemu-img.c                    |   10 +-
 savevm.c                      |    2 +-
 8 files changed, 281 insertions(+), 18 deletions(-)

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1.7.9.5