On Thu, Jul 27, 2023 at 12:54:44PM -0700, Nuno Das Neves wrote:
> This is a more flexible approach for determining whether to allocate the
> output page.
> This will be used in both mshv_vtl and root partition.
>
> Signed-off-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>
> ---
> drivers/hv/hv_common.c | 30 +++++++++++++++++++++++++-----
> 1 file changed, 25 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c
> index 99d9b262b8a7..16f069beda78 100644
> --- a/drivers/hv/hv_common.c
> +++ b/drivers/hv/hv_common.c
> @@ -57,6 +57,18 @@ EXPORT_SYMBOL_GPL(hyperv_pcpu_input_arg);
> void * __percpu *hyperv_pcpu_output_arg;
> EXPORT_SYMBOL_GPL(hyperv_pcpu_output_arg);
>
> +/*
> + * Determine whether output arg is in use, for allocation/deallocation
> + */
> +static bool hv_output_arg_exists(void)
> +{
> + bool ret = hv_root_partition ? true : false;
> +#ifdef CONFIG_MSHV_VTL
> + ret = true;
> +#endif
This should not be here. As far as I can tell, CONFIG_MSHV_VTL is
introduced in a later patch.
The rest looks okay.
Thanks,
Wei.
