[Qemu-devel] [PATCHv3 00/10] iscsi/qemu-img/block-migration enhancements

[Peter Lieven <pl@kamp.de>]

this series adds logical block provisioning functions to the iscsi layer.
it also is the first step to the change of migration to coroutines in
block/iscsi.

the changes to qemu-img and block migration have been split and will
follow in separte patches later.

changes in v3:
 - merge both block provision inquiries into one patch. explitely free the iscsi tasks after
   the inquiry. limit the unmap to 128k blocks if the target returns max_unmap = 0xffffffff;
 - in the coroutine framework free the scsi task in the caller not in the callback. also
   change the iTask init as Kevin suggested.
 - in iscsi_co_is_allocated() return unallocated only for ANCHORED and UNALLOACTED to avoid
   a wrong return value if a new provisioning status is introduced.
 - added new patch adding .bdrv_co_discard
 - build .bdrv_co_write_zeroes on top of .bdrv_co_discard
 - fixed a bug for -ENOSPC in iscsi_create() spotted by Kevin.
 - remove support for misaligned nb_sectors in aio_readv
 - add log message in error case to lun alignment checks

Peter Lieven (10):
  iscsi: add logical block provisioning information to iscsilun
  iscsi: add .bdrv_co_is_allocated
  iscsi: add .bdrv_co_discard
  iscsi: add .bdrv_write_zeroes
  block: add bdrv_write_zeroes()
  block/raw: add bdrv_co_write_zeroes
  iscsi: fix -ENOSPC in iscsi_create()
  iscsi: factor out sector conversions
  iscsi: remove support for misaligned nb_sectors in aio_readv
  iscsi: assert that sectors are aligned to LUN blocksize

 block.c               |   27 ++-
 block/iscsi.c         |  433 +++++++++++++++++++++++++++++++++++++------------
 block/raw.c           |    8 +
 include/block/block.h |    2 +
 4 files changed, 358 insertions(+), 112 deletions(-)

-- 
1.7.9.5