On Wed, 15 Jun 2022 11:53:17 +0200 Janosch Frank <frankja@xxxxxxxxxxxxx> wrote: > On 6/3/22 08:56, Claudio Imbrenda wrote: > > Add the module parameter "async_destroy", to allow the asynchronous > > destroy mechanism to be switched off. This might be useful for > > debugging purposes. > > > > The parameter is enabled by default. > > > > Signed-off-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx> > > Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx> > > Normally this would be one of the last patches in the series, no? I need the variable to be already defined, because the subsequent patches use it to fence things > > > --- > > arch/s390/kvm/kvm-s390.c | 5 +++++ > > 1 file changed, 5 insertions(+) > > > > diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c > > index 76ad6408cb2c..49e27b5d7c3a 100644 > > --- a/arch/s390/kvm/kvm-s390.c > > +++ b/arch/s390/kvm/kvm-s390.c > > @@ -206,6 +206,11 @@ unsigned int diag9c_forwarding_hz; > > module_param(diag9c_forwarding_hz, uint, 0644); > > MODULE_PARM_DESC(diag9c_forwarding_hz, "Maximum diag9c forwarding per second, 0 to turn off"); > > > > +/* allow asynchronous deinit for protected guests, enable by default */ > > +static int async_destroy = 1; > > +module_param(async_destroy, int, 0444); > > +MODULE_PARM_DESC(async_destroy, "Asynchronous destroy for protected guests"); > > + > > /* > > * For now we handle at most 16 double words as this is what the s390 base > > * kernel handles and stores in the prefix page. If we ever need to go beyond >
