Re: [PATCH v2 03/13] libxenguest: deal with log-dirty op stats overflow

[Olaf Hering <olaf@xxxxxxxxx>]

Am Mon, 5 Jul 2021 17:13:28 +0200
schrieb Jan Beulich <jbeulich@xxxxxxxx>:

>      ctx->save.stats = (struct precopy_stats){
> -        .dirty_count = ctx->save.p2m_size,
> +        .dirty_count = -1,
>      };

As said earlier, a consumer of these data may now be unable to initialize 
itself properly. Without the patch it would be able to size its private data 
structures properly to p2m_size. With the patch it can not know in advance what 
the upper limit might be.

There is no in-tree consumer that is affected, and I do not have an out-of-tree 
consumer that might be broken by this change.

Just saying..

Olaf

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