Re: [Qemu-block] [PATCH RFC 0/3] block: Backdoor to skip image locking in qemu-io/qemu-img

[John Snow]

On 03/13/2017 10:39 PM, Fam Zheng wrote:
> Hi Kevin,
> 
> This tries to capture your idea to add a explicit command option in qemu-io 
> and
> qemu-img for user to specify "expect inconsistent data when reading image".
> It's stored as a BDRV_O_ flag internally, I don't know if there is a cleaner
> way or not.
> 
> It's depended on by image locking series because several test cases need to be
> updated to use this flag.
> 
> Fam
> 
> Fam Zheng (3):
>   block: Introduce BDRV_O_UNSAFE_READ
>   qemu-img: Add --unsafe-read option to subcommands
>   qemu-io: Add --unsafe-read option
> 
>  block/block-backend.c |   2 +-
>  include/block/block.h |   1 +
>  qemu-img.c            | 148 
> ++++++++++++++++++++++++++++++++++++++------------
>  qemu-io.c             |  28 +++++++---
>  4 files changed, 137 insertions(+), 42 deletions(-)
> 

Month old with no replies or ping, DOA?

--js