linux-kernel - Re: [RFC][PATCH] kvm: add suspend pm-notifier

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Message-ID: <YLl2QeoziEVHvRAO@google.com>
Date:   Fri, 4 Jun 2021 09:39:29 +0900
From:   Sergey Senozhatsky <senozhatsky@...omium.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Jim Mattson <jmattson@...gle.com>,
        Marc Zyngier <maz@...nel.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        Paul Mackerras <paulus@...abs.org>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Suleiman Souhlal <suleiman@...gle.com>, x86@...nel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        kvm@...r.kernel.org, kvm-ppc@...r.kernel.org,
        linux-s390@...r.kernel.org
Subject: Re: [RFC][PATCH] kvm: add suspend pm-notifier

On (21/06/03 19:27), Peter Zijlstra wrote:
> On Fri, Jun 04, 2021 at 01:43:15AM +0900, Sergey Senozhatsky wrote:
[..]
> >  
> > +void kvm_arch_pm_notifier(struct kvm *kvm)
> > +{
> > +}
> > +
> >  long kvm_arch_vm_ioctl(struct file *filp,
> >  		       unsigned int ioctl, unsigned long arg)
> >  {
> 
> What looks like you wants a __weak function.

True. Thanks for the suggestion.

I thought about it, but I recalled that tglx had  __strong opinions
on __weak functions.