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Date:   Thu, 8 Jul 2021 20:19:48 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Paolo Bonzini <pbonzini@redhat.com>
Cc:     Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
        stable@vger.kernel.org, sashal@kernel.org,
        David Rientjes <rientjes@google.com>
Subject: Re: [PATCH for 4.19, 5.4] KVM: SVM: Periodically schedule when
 unregistering regions on destroy
Message-ID: <YOdBxCmbAKXPkq8r@kroah.com>
References: <20210708050253.341098-1-nobuhiro1.iwamatsu@toshiba.co.jp>
 <e6bb1290-6db7-97c1-cb24-403beb4e1609@redhat.com>
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On Thu, Jul 08, 2021 at 11:17:33AM +0200, Paolo Bonzini wrote:
> On 08/07/21 07:02, Nobuhiro Iwamatsu wrote:
> > From: David Rientjes <rientjes@google.com>
> > 
> > commit 7be74942f184fdfba34ddd19a0d995deb34d4a03 upstream.
> 
> Part of 5.9.
> 
> > diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> > index c5673bda4b66df..3f776e654e3aec 100644
> > --- a/arch/x86/kvm/svm.c
> > +++ b/arch/x86/kvm/svm.c
> > @@ -1910,6 +1910,7 @@ static void sev_vm_destroy(struct kvm *kvm)
> >   		list_for_each_safe(pos, q, head) {
> >   			__unregister_enc_region_locked(kvm,
> >   				list_entry(pos, struct enc_region, list));
> > +			cond_resched();
> >   		}
> >   	}
> > 
> 
> Patch is the same as the upstream commit, except for the name of the file.
> Thanks!
> 
> Acked-by: Paolo Bonzini <pbonzini@redhat.com>

Now queued up, thanks.

greg k-h