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Re: [Qemu-devel] [PATCH for-2.10 3/9] block: honor BDRV_O_ALLOW_RDWR whe

From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH for-2.10 3/9] block: honor BDRV_O_ALLOW_RDWR when clearing bs->read_only
Date: Wed, 5 Apr 2017 14:26:53 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0

On 04/05/2017 02:20 PM, John Snow wrote:

> Conceptually straightforward.
> looks like this might change behavior for... RBD and vvfat, right?
> RBD is the subject of this series so we'll just assume that was broken
> and stupid.
> What's vvfat's story? It always set the read-only property to false
> regardless of what you asked for?

vvfat is even stupider than that - it has its own independent property
'rw' that determines whether to allow write operations, separate from
the inherited BDS readonly property.

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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