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

[Stefan Hajnoczi]

On Thu, Jul 11, 2013 at 02:16:17PM +0200, Peter Lieven wrote:
> 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(-)

Thanks, applied patches 5 & 6 to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan