Re: [Qemu-devel] [PATCH v4] qemu-img: Document --force-share / -U

[Kashyap Chamarthy]

On Tue, Dec 12, 2017 at 08:51:13AM +0800, Fam Zheng wrote:
> Signed-off-by: Fam Zheng <address@hidden>

[...]

>  qemu-img.texi | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/qemu-img.texi b/qemu-img.texi
> index fdcf120f36..d93501f94f 100644
> --- a/qemu-img.texi
> +++ b/qemu-img.texi
> @@ -57,6 +57,15 @@ exclusive with the @var{-O} parameters. It is currently 
> required to also use
>  the @var{-n} parameter to skip image creation. This restriction may be 
> relaxed
>  in a future release.
>  
> address@hidden --force-share (-U)
> +
> +If specified, @code{qemu-img} will open the image with shared permissions,
> +which makes it less likely to conflict with a running guest's permissions due
> +to image locking. For example, this can be used to get the image information
> +(with 'info' subcommand) when the image is used by a running guest. Note that
> +this could produce inconsistent result because of concurrent metadata 
> changes,
> +etc. This option is only allowed when opening images in read-only mode.
> +

Reviewed-by: Kashyap Chamarthy <address@hidden>

-- 
/kashyap