Re: [PATCH v2 05/29] tools/xenlogd: add 9pfs response generation support

[Jason Andryuk <jandryuk@xxxxxxxxx>]

On Fri, Nov 10, 2023 at 1:41 PM Juergen Gross <jgross@xxxxxxxx> wrote:
>
> Add support for generation a 9pfs protocol response via a format based
> approach.
>
> Strings are stored in a per device string buffer and they are
> referenced via their offset in this buffer. This allows to avoid
> having to dynamically allocate memory for each single string.
>
> As a first user of the response handling add a generic p9_error()
> function which will be used to return any error to the client.
>
> Add all format parsing variants in order to avoid additional code churn
> later when adding the users of those variants. Prepare a special case
> for the "read" case already (format character 'D'): in order to avoid
> adding another buffer for read data support doing the read I/O directly
> into the response buffer.
>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Jason Andryuk <jandryuk@xxxxxxxxx>

Thanks,
Jason