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 X-Spam-Level: X-Spam-Status: No, score=-2.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18413C49EA5 for ; Thu, 24 Jun 2021 08:58:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ECFF3613E7 for ; Thu, 24 Jun 2021 08:58:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229948AbhFXJA1 (ORCPT ); Thu, 24 Jun 2021 05:00:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53096 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbhFXJAZ (ORCPT ); Thu, 24 Jun 2021 05:00:25 -0400 Received: from mail-pf1-x435.google.com (mail-pf1-x435.google.com [IPv6:2607:f8b0:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD4AFC061574; Thu, 24 Jun 2021 01:58:06 -0700 (PDT) Received: by mail-pf1-x435.google.com with SMTP id s14so3323219pfg.0; Thu, 24 Jun 2021 01:58:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:subject:to:cc:references:in-reply-to:mime-version :message-id:content-transfer-encoding; bh=tKGKGI76BKfQVO8CY1clLxpyySv3vaB3aNh7NWcPhFU=; b=hr3gPiWSs1kzsoT0RN4D0/9u1oAQb1rzWVWLp59xVCkmpZThGbP8ZZHdbz3ZoRByYE Q+bBx6g9vlzubm3xmDqrFRZB2+oF9y38fRVeD/lgeXJbzeuitriXAAYQ0N8Gc/HydmS9 h/5/U9gCncS2FPi6hlzNOXRrtw9yomYF3Wegfa7y5BMTxxqMjVRS/4Rtc+vsfYrwyiXs LyEAUsbj+aFGjgwEVS9b0hjW6sOv/s+/X+xMkec2Brf1nwlIC4mUivbzM9KBmc/1CmOo TCEnNnCh1Rmp7Wm6gBzXbz6S+8yTRr+T+rSaRDpuwEYfFxSOn4uIuwntNiH62vmZwJdo +iuw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:subject:to:cc:references:in-reply-to :mime-version:message-id:content-transfer-encoding; bh=tKGKGI76BKfQVO8CY1clLxpyySv3vaB3aNh7NWcPhFU=; b=ks5V5HoFfYHrZqnvVUP3SZpsCYaSwBSX8Tkf8LynNcGR2I7B8anfGvu9jIpNNn07Cc 2fvBB7QXPs2olhF3NYIH6wOB0xMZWEcMbdhW2Xyj36BabeMF/p41BXG2wEbgh93qS6fm JvZz+Jc89Opb/TUaYjvP1pVzgNlNIwmWJO9yChnVjLJxfXOnu3ahEe2zmKJH/8YkHg7u M47b5E4GnIrGU+MvnPRaMu3smhSGwzK5bs7xEuI3AMRnOxg3fTsg3kuK4ErjTDGA+Bde 22SMOA+qhngfUzR7adjDi4U0An6nps/khed6YjZjTNFsVsm2x4PkSrXfx8b6mpScKQo6 YWoA== X-Gm-Message-State: AOAM53224IMDWWPPmWgUVNhFaFXO7G1uaj2T4V34ytRMdyrE+d78jl1L Jciy/UEvTH/xvEW5LU3tdxQ= X-Google-Smtp-Source: ABdhPJw6tjizzTpMBwm3ffTzeTydtLNTRDVWzEX8o5A/u6n7JmgIJ0z9ctLYNOtrV24IDSrsfT+37Q== X-Received: by 2002:a63:4e4c:: with SMTP id o12mr3895360pgl.95.1624525086186; Thu, 24 Jun 2021 01:58:06 -0700 (PDT) Received: from localhost (60-242-147-73.tpgi.com.au. [60.242.147.73]) by smtp.gmail.com with ESMTPSA id u12sm2003479pjc.0.2021.06.24.01.58.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Jun 2021 01:58:05 -0700 (PDT) Date: Thu, 24 Jun 2021 18:58:00 +1000 From: Nicholas Piggin Subject: Re: [PATCH 3/6] KVM: x86/mmu: avoid struct page in MMU To: Aleksandar Markovic , Huacai Chen , Marc Zyngier , Paul Mackerras , Paolo Bonzini , David Stevens , Zhenyu Wang , Zhi Wang Cc: Alexandru Elisei , dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, James Morse , Jim Mattson , Joerg Roedel , kvmarm@lists.cs.columbia.edu, kvm-ppc@vger.kernel.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Sean Christopherson , Suzuki K Poulose , Vitaly Kuznetsov , Wanpeng Li , Will Deacon References: <20210624035749.4054934-1-stevensd@google.com> <20210624035749.4054934-4-stevensd@google.com> In-Reply-To: <20210624035749.4054934-4-stevensd@google.com> MIME-Version: 1.0 Message-Id: <1624524744.2sr7o7ix86.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Excerpts from David Stevens's message of June 24, 2021 1:57 pm: > From: David Stevens > out_unlock: > if (is_tdp_mmu_root(vcpu->kvm, vcpu->arch.mmu->root_hpa)) > read_unlock(&vcpu->kvm->mmu_lock); > else > write_unlock(&vcpu->kvm->mmu_lock); > - kvm_release_pfn_clean(pfn); > + if (pfnpg.page) > + put_page(pfnpg.page); > return r; > } How about kvm_release_pfn_page_clean(pfnpg); Thanks, Nick