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Re: [Qemu-devel] [RFC 3/7] docs: add lazy refcounts bit to qcow2 specifi


From: Kevin Wolf
Subject: Re: [Qemu-devel] [RFC 3/7] docs: add lazy refcounts bit to qcow2 specification
Date: Mon, 25 Jun 2012 16:35:34 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1

Am 22.06.2012 17:08, schrieb Stefan Hajnoczi:
> The lazy refcounts bit indicates that this image can take advantage of
> the dirty bit and that refcount updates can be postponed.
> 
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> ---
>  docs/specs/qcow2.txt |    6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/docs/specs/qcow2.txt b/docs/specs/qcow2.txt
> index 3a789ce..8b2c0eb 100644
> --- a/docs/specs/qcow2.txt
> +++ b/docs/specs/qcow2.txt
> @@ -85,7 +85,11 @@ in the description of a field.
>                      Bitmask of compatible features. An implementation can
>                      safely ignore any unknown bits that are set.
>  
> -                    Bits 0-63:  Reserved (set to 0)
> +                    Bit 0: Lazy refcounts bit.  If this bit is set then lazy
> +                           refcount updates can be used.  This means 
> postponing
> +                           marking the image file dirty and postponing 
> refcount
> +                           metadata updates.
> +                    Bits 1-63:  Reserved (set to 0)

Please keep the formatting consistent: The description for bit 0 should
be indented to the same level as "Reserved", and an empty line should be
left between each description.

Regarding indentation, the same applies to patch 1.

Kevin



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