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 44EA2C433EF for ; Wed, 27 Apr 2022 01:40:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356890AbiD0Bne (ORCPT ); Tue, 26 Apr 2022 21:43:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356851AbiD0BnZ (ORCPT ); Tue, 26 Apr 2022 21:43:25 -0400 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 72E32B85B for ; Tue, 26 Apr 2022 18:40:15 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id g5-20020a62e305000000b0050d2dba0c5dso244451pfh.8 for ; Tue, 26 Apr 2022 18:40:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=Opu+r9cOj6vT5KVW7KE10AooN5kbCr3+qYloyBaXyY0=; b=pCoA5OZvIkGwUDXcUDFUnJWZ4yNderLkQHzBEEJnoDg4MLvr+dbdQPnq9p+ywSaqsh LMWwqpDiuV9k7JKmTpIdQD5k7cwQEr7hvvsgh6aiN8TiSwC9QO6kk1xYncpE7raOsBne owTGoiSMe+lPp6h/S3/pfPUvftLqjxzLkgkkNEn8UJBG/BKLCjGYFyUDRjjVX6A/eTPe gY/oLZJXNOJTmJ5MN9NsnzaycIEMHMM41BGNvrhOmn0OfPWwTcBPj4urwHa+UVAuI59k p1ykzFr5pi2UUhJNIWf1l7dsMPQcPRj4uPWjqv4SoFDPWlCuMLLnExc9A5Euke3FFD4a XIWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=Opu+r9cOj6vT5KVW7KE10AooN5kbCr3+qYloyBaXyY0=; b=yFCrB/PSaAP8z9GqWtsV9PkHcBLBoHB/s84/QJsGgCLfDGxdSVmQhfKpHDrdSwn/X1 6ot8U8h5aCKVrmp22EuO82mAonZ8r0oun3WQMURreAer5/aiKkH9sqjhzQRuRbsWxmgr l6Npyta1+Iz57ID0e8tze9vXjgrFBtubncM6bDeiu/5whwJcesL6ANRsPS+sm7ExMN/J sIK0K5QKTsbKJ9HaIAaxMz9zS77r7iXRCt3sQl69ho0aqGJyzkNIWzFA9Y5Ba7tnX1Rk Rqs7HKKK4al3J/ts2cr4dGyCzuKXk7+WPAqxeqAQRgu9zHx202M0K6t83ZxWXOowyV7A u/Bw== X-Gm-Message-State: AOAM5318+NxZxLtMEe2r8qckOD9ddY+TxupHV+vpwVUtL/xOO0QhIXbc /29dmFi0fueIStmu5wx5CjI9UcACJ+A= X-Google-Smtp-Source: ABdhPJyJqSr1Vq440G+8O1KTekBdnigW1j3j4RPrpD5Zi5tno8mWT29k/0lTWCZWBPDEcV0Avyu7dUCzW/M= X-Received: from seanjc.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:3e5]) (user=seanjc job=sendgmr) by 2002:a05:6a00:ad0:b0:4f7:a357:6899 with SMTP id c16-20020a056a000ad000b004f7a3576899mr27437539pfl.80.1651023614625; Tue, 26 Apr 2022 18:40:14 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 27 Apr 2022 01:39:59 +0000 In-Reply-To: <20220427014004.1992589-1-seanjc@google.com> Message-Id: <20220427014004.1992589-4-seanjc@google.com> Mime-Version: 1.0 References: <20220427014004.1992589-1-seanjc@google.com> X-Mailer: git-send-email 2.36.0.rc2.479.g8af0fa9b8e-goog Subject: [PATCH v2 3/8] KVM: Drop unused @gpa param from gfn=>pfn cache's __release_gpc() helper From: Sean Christopherson To: Paolo Bonzini Cc: Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, David Woodhouse , Mingwei Zhang , Maxim Levitsky Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Drop the @pga param from __release_gpc() and rename the helper to make it more obvious that the cache itself is not being released. The helper will be reused by a future commit to release a pfn+khva combination that is _never_ associated with the cache, at which point the current name would go from slightly misleading to blatantly wrong. No functional change intended. Signed-off-by: Sean Christopherson --- virt/kvm/pfncache.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/virt/kvm/pfncache.c b/virt/kvm/pfncache.c index dd84676615f1..e05a6a1b8eff 100644 --- a/virt/kvm/pfncache.c +++ b/virt/kvm/pfncache.c @@ -95,7 +95,7 @@ bool kvm_gfn_to_pfn_cache_check(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, } EXPORT_SYMBOL_GPL(kvm_gfn_to_pfn_cache_check); -static void __release_gpc(struct kvm *kvm, kvm_pfn_t pfn, void *khva, gpa_t gpa) +static void gpc_release_pfn_and_khva(struct kvm *kvm, kvm_pfn_t pfn, void *khva) { /* Unmap the old page if it was mapped before, and release it */ if (!is_error_noslot_pfn(pfn)) { @@ -146,7 +146,6 @@ int kvm_gfn_to_pfn_cache_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, unsigned long page_offset = gpa & ~PAGE_MASK; kvm_pfn_t old_pfn, new_pfn; unsigned long old_uhva; - gpa_t old_gpa; void *old_khva; bool old_valid; int ret = 0; @@ -160,7 +159,6 @@ int kvm_gfn_to_pfn_cache_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, write_lock_irq(&gpc->lock); - old_gpa = gpc->gpa; old_pfn = gpc->pfn; old_khva = gpc->khva - offset_in_page(gpc->khva); old_uhva = gpc->uhva; @@ -244,7 +242,7 @@ int kvm_gfn_to_pfn_cache_refresh(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, out: write_unlock_irq(&gpc->lock); - __release_gpc(kvm, old_pfn, old_khva, old_gpa); + gpc_release_pfn_and_khva(kvm, old_pfn, old_khva); return ret; } @@ -254,14 +252,12 @@ void kvm_gfn_to_pfn_cache_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc) { void *old_khva; kvm_pfn_t old_pfn; - gpa_t old_gpa; write_lock_irq(&gpc->lock); gpc->valid = false; old_khva = gpc->khva - offset_in_page(gpc->khva); - old_gpa = gpc->gpa; old_pfn = gpc->pfn; /* @@ -273,7 +269,7 @@ void kvm_gfn_to_pfn_cache_unmap(struct kvm *kvm, struct gfn_to_pfn_cache *gpc) write_unlock_irq(&gpc->lock); - __release_gpc(kvm, old_pfn, old_khva, old_gpa); + gpc_release_pfn_and_khva(kvm, old_pfn, old_khva); } EXPORT_SYMBOL_GPL(kvm_gfn_to_pfn_cache_unmap); -- 2.36.0.rc2.479.g8af0fa9b8e-goog