[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [Qemu-block] [PATCH v2] qemu-img: Document --force-shar
From: |
Fam Zheng |
Subject: |
Re: [Qemu-devel] [Qemu-block] [PATCH v2] qemu-img: Document --force-share / -U |
Date: |
Mon, 11 Dec 2017 17:30:41 +0800 |
User-agent: |
Mutt/1.9.1 (2017-09-22) |
On Fri, 12/08 09:54, Stefan Hajnoczi wrote:
> 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
> read-only.
block.c will emit an error if used with read-write. I will add a sentence for
that.
Fam