From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDAA3C54EE9 for ; Mon, 5 Sep 2022 05:36:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235560AbiIEFgB (ORCPT ); Mon, 5 Sep 2022 01:36:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231744AbiIEFf5 (ORCPT ); Mon, 5 Sep 2022 01:35:57 -0400 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41F4526AE6; Sun, 4 Sep 2022 22:35:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662356156; x=1693892156; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=cQMxScv/eSJNt080rZxewyQzAxe+pGTLshbySipJkFo=; b=Bsf3rf+elELLZMq0F188ifDEtI3Ee18X9P08UsjEHAg1NPZcxRbROW0x nRIDExjnnQMctf6hjBNn5192QlaR9WZMesifHrtOZSH4F1MDygRJVLAVX YSybHm52EfQdFB6ZIldzzEdHEELUidh8RLjEgKyG8nLtHXWQ0ZJUS3aZk 7tbhCyjXlw1kS0cVQLfGBJMddjOglucXgyEuEv6U+ZrzQyANKBq1xexDD k14TdwssCAM8bGH2G0Dpu9DHV9R8NuE0pcVl1JDAFCNQEMqiyWeRjz/3X 75zfimHqmc4nb04NzrAGCu05NrHz3CfgQCwJf+drxKzqZWanAqzppd7u/ w==; X-IronPort-AV: E=McAfee;i="6500,9779,10460"; a="293893746" X-IronPort-AV: E=Sophos;i="5.93,290,1654585200"; d="scan'208";a="293893746" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Sep 2022 22:35:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,290,1654585200"; d="scan'208";a="609565717" Received: from yy-desk-7060.sh.intel.com (HELO localhost) ([10.239.159.76]) by orsmga007.jf.intel.com with ESMTP; 04 Sep 2022 22:35:51 -0700 Date: Mon, 5 Sep 2022 13:35:50 +0800 From: Yuan Yao To: isaku.yamahata@intel.com Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Paolo Bonzini , Sean Christopherson , Thomas Gleixner , Marc Zyngier , Will Deacon , isaku.yamahata@gmail.com, Kai Huang , Chao Gao , Atish Patra , Shaokun Zhang , Qi Liu , John Garry , Daniel Lezcano , Huang Ying , Huacai Chen , Dave Hansen , Borislav Petkov Subject: Re: [PATCH v3 02/22] KVM: x86: Use this_cpu_ptr() instead of per_cpu_ptr(smp_processor_id()) Message-ID: <20220905053550.ltovrnpu6tlxqje3@yy-desk-7060> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: NeoMutt/20171215 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 01, 2022 at 07:17:37PM -0700, isaku.yamahata@intel.com wrote: > From: Isaku Yamahata > > convert per_cpu_ptr(smp_processor_id()) to this_cpu_ptr() as trivial > cleanup. Reviewed-by: Yuan Yao > > Signed-off-by: Isaku Yamahata > Reviewed-by: Chao Gao > --- > arch/x86/kvm/x86.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c > index 0e200fe44b35..fd021581ca60 100644 > --- a/arch/x86/kvm/x86.c > +++ b/arch/x86/kvm/x86.c > @@ -428,8 +428,7 @@ static void kvm_user_return_msr_init_cpu(struct kvm_user_return_msrs *msrs) > > int kvm_set_user_return_msr(unsigned slot, u64 value, u64 mask) > { > - unsigned int cpu = smp_processor_id(); > - struct kvm_user_return_msrs *msrs = per_cpu_ptr(user_return_msrs, cpu); > + struct kvm_user_return_msrs *msrs = this_cpu_ptr(user_return_msrs); > int err; > > kvm_user_return_msr_init_cpu(msrs); > @@ -453,8 +452,7 @@ EXPORT_SYMBOL_GPL(kvm_set_user_return_msr); > > static void drop_user_return_notifiers(void) > { > - unsigned int cpu = smp_processor_id(); > - struct kvm_user_return_msrs *msrs = per_cpu_ptr(user_return_msrs, cpu); > + struct kvm_user_return_msrs *msrs = this_cpu_ptr(user_return_msrs); > > if (msrs->registered) > kvm_on_user_return(&msrs->urn); > -- > 2.25.1 >