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From:   Anup Patel <anup@brainfault.org>
Date:   Tue, 6 Jun 2023 09:01:25 +0530
Message-ID: <CAAhSdy3isg4788uz=fP6DCTD3LgVbXz9Ud7aoi2VmEbRKYkW6w@mail.gmail.com>
Subject: Re: [PATCH] RISC-V: KVM: use bitmap_zero() API
To:     ye.xingchen@zte.com.cn
Cc:     atishp@atishpatra.org, paul.walmsley@sifive.com,
        palmer@dabbelt.com, aou@eecs.berkeley.edu, kvm@vger.kernel.org,
        kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org
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On Sat, May 6, 2023 at 2:40=E2=80=AFPM <ye.xingchen@zte.com.cn> wrote:
>
> From: Ye Xingchen <ye.xingchen@zte.com.cn>
>
> bitmap_zero() is faster than bitmap_clear(), so use bitmap_zero()
> instead of bitmap_clear().
>
> Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>

Queued this patch for 6.5

Thanks,
Anup

> ---
>  arch/riscv/kvm/tlb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/kvm/tlb.c b/arch/riscv/kvm/tlb.c
> index 0e5479600695..44bc324aeeb0 100644
> --- a/arch/riscv/kvm/tlb.c
> +++ b/arch/riscv/kvm/tlb.c
> @@ -296,7 +296,7 @@ static void make_xfence_request(struct kvm *kvm,
>         unsigned int actual_req =3D req;
>         DECLARE_BITMAP(vcpu_mask, KVM_MAX_VCPUS);
>
> -       bitmap_clear(vcpu_mask, 0, KVM_MAX_VCPUS);
> +       bitmap_zero(vcpu_mask, KVM_MAX_VCPUS);
>         kvm_for_each_vcpu(i, vcpu, kvm) {
>                 if (hbase !=3D -1UL) {
>                         if (vcpu->vcpu_id < hbase)
> --
> 2.25.1