Re: [PATCH rcu 01/27] arch/x86: Remove "select SRCU"

Paul E. McKenney
2023-01-12T00:05:32Z

On Tue, Jan 10, 2023 at 07:55:13PM +0000, Sean Christopherson wrote:
> On Mon, Jan 09, 2023, Paul E. McKenney wrote:
> > On Mon, Jan 09, 2023 at 11:22:28AM -0800, Paul E. McKenney wrote:
> > > On Mon, Jan 09, 2023 at 05:43:23PM +0000, Sean Christopherson wrote:
> > > > On Wed, Jan 04, 2023, Paul E. McKenney wrote:
> > > > > Now that the SRCU Kconfig option is unconditionally selected, there is
> > > > > no longer any point in selecting it. Therefore, remove the "select SRCU"
> > > > > Kconfig statements.
> > > > >
> > > > > Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
> > > > > Cc: Thomas Gleixner <tglx@linutronix.de>
> > > > > Cc: Ingo Molnar <mingo@redhat.com>
> > > > > Cc: Borislav Petkov <bp@alien8.de>
> > > > > Cc: Dave Hansen <dave.hansen@linux.intel.com>
> > > > > Cc: "H. Peter Anvin" <hpa@zytor.com>
> > > > > Cc: Sean Christopherson <seanjc@google.com>
> > > > > Cc: Paolo Bonzini <pbonzini@redhat.com>
> > > > > Cc: <x86@kernel.org>
> > > > > Cc: <kvm@vger.kernel.org>
> > > > > ---
> > > >
> > > > ...
> > > >
> > > > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
> > > > > index fbeaa9ddef598..9306d99585188 100644
> > > > > --- a/arch/x86/kvm/Kconfig
> > > > > +++ b/arch/x86/kvm/Kconfig
> > > > > @@ -46,7 +46,6 @@ config KVM
> > > > > select KVM_XFER_TO_GUEST_WORK
> > > > > select KVM_GENERIC_DIRTYLOG_READ_PROTECT
> > > > > select KVM_VFIO
> > > > > - select SRCU
> > > >
> > > > Would it be too much trouble to bundle all of the KVM changes into a single patch?
> > > > The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs
> > > > purely because of KVM's somewhat roundabout Kconfig setup.
> > >
> > > No problem, and will do on my next rebase. I might end up with a long
> > > list of Cc's, but so it goes. I will of course send the result as a
> > > reply to this message.
> >
> > Like this?
>
> Ya, looks good!

Glad you like it! May I have your ack? Or would you take this one?

Thanx, Paul