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Re: [Qemu-block] [PATCH v2] qemu-img: Document --force-share / -U

From: Stefan Hajnoczi
Subject: Re: [Qemu-block] [PATCH v2] qemu-img: Document --force-share / -U
Date: Fri, 8 Dec 2017 09:54:12 +0000
User-agent: Mutt/1.9.1 (2017-09-22)

On Fri, Dec 08, 2017 at 09:44:56AM +0800, Fam Zheng wrote:
> 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.

The documentation isn't clear on whether read-write is supported or just

Also, should it be declared a legacy option right away to discourage
use in new software?

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