linux-kernel - Re: [PATCH] KVM: X86: Use IPI shorthands in kvm guest when support

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Message-ID: <CANRm+CxbLJv0ZoSA2_84B9Xe0nBOWwYrYN3jZFrmU6N5Zr+EkQ@mail.gmail.com>
Date:   Fri, 26 Jul 2019 15:46:50 +0800
From:   Wanpeng Li <kernellwp@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, kvm <kvm@...r.kernel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>,
        Nadav Amit <namit@...are.com>
Subject: Re: [PATCH] KVM: X86: Use IPI shorthands in kvm guest when support

On Fri, 26 Jul 2019 at 15:20, Thomas Gleixner <tglx@...utronix.de> wrote:
>
> On Fri, 26 Jul 2019, Wanpeng Li wrote:
> > On Fri, 26 Jul 2019 at 14:10, Wanpeng Li <kernellwp@...il.com> wrote:
> > >  static void kvm_send_ipi_all(int vector)
> > >  {
> > > -       __send_ipi_mask(cpu_online_mask, vector);
> > > +       if (static_branch_likely(&apic_use_ipi_shorthand))
> > > +               orig_apic.send_IPI_allbutself(vector);
> >
> > Make a mistake here, just resend the patch.
>
> Please don't use [RESEND] if the patch is different. Use [PATCH v2].
>
> [RESEND] is used when you actually resend an unmodified patch, e.g. when
> the first submission was ignored for a longer time.

Will do for next time, I guess Paolo can still review the [RESEND] one
for this time to avoid my patch flush the mailing list. :)

Regards,
Wanpeng Li