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Re: [Qemu-block] [PATCH] blockdev-backup: enable non-root nodes for back

From: John Snow
Subject: Re: [Qemu-block] [PATCH] blockdev-backup: enable non-root nodes for backup
Date: Mon, 4 Dec 2017 17:15:45 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0

On 12/01/2017 02:41 PM, Max Reitz wrote:
> ((By the way, I don't suppose that's how it should work...  But I don't
> suppose that we want propagation of dirtying towards the BDS roots, do
> we? :-/))

I have never really satisfactorily explained to myself what bitmaps on
intermediate notes truly represent or mean.

The simple case is "This layer itself serviced a write request."

If that information is not necessarily meaningful, I'm not sure that's a
problem except in configuration.

...Now, if you wanted to talk about bitmaps that associate with a
Backend instead of a Node...

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