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Re: [Qemu-devel] [PATCH v9 08/10] qcow2: Invoke refcount order amendment


From: Alberto Garcia
Subject: Re: [Qemu-devel] [PATCH v9 08/10] qcow2: Invoke refcount order amendment function
Date: Thu, 06 Aug 2015 17:10:34 +0200
User-agent: Notmuch/0.13.2 (http://notmuchmail.org) Emacs/23.2.1 (i486-pc-linux-gnu)

On Mon 27 Jul 2015 05:51:38 PM CEST, Max Reitz wrote:

> +            if (refcount_bits <= 0 || refcount_bits > 64 ||
> +                !is_power_of_2(refcount_bits))
> +            {
> +                error_report("Refcount width must be a power of two and may "
> +                             "not exceed 64 bits");
> +                return -EINVAL;
> +            }

I guess there's no lower limit needed for this? Doesn't it break
anything if refcount_bits == 1?

Berto



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