From patchwork Wed Feb 10 17:22:45 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Avi Kivity X-Patchwork-Id: 78519 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o1AHVZsp006916 for ; Wed, 10 Feb 2010 17:31:39 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756165Ab0BJR3A (ORCPT ); Wed, 10 Feb 2010 12:29:00 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42984 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755493Ab0BJRXN (ORCPT ); Wed, 10 Feb 2010 12:23:13 -0500 Received: from int-mx01.intmail.prod.int.phx2.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o1AHNDi5030809 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 10 Feb 2010 12:23:13 -0500 Received: from cleopatra.tlv.redhat.com (cleopatra.tlv.redhat.com [10.35.255.11]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o1AHNCP1032230; Wed, 10 Feb 2010 12:23:13 -0500 Received: from localhost.localdomain (file.tlv.redhat.com [10.35.255.8]) by cleopatra.tlv.redhat.com (Postfix) with ESMTP id 30513A028E; Wed, 10 Feb 2010 19:23:10 +0200 (IST) From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 16/40] KVM: Disentangle mmu notifiers and coalesced_mmio registration Date: Wed, 10 Feb 2010 19:22:45 +0200 Message-Id: <1265822589-11155-17-git-send-email-avi@redhat.com> In-Reply-To: <1265822589-11155-1-git-send-email-avi@redhat.com> References: <1265822589-11155-1-git-send-email-avi@redhat.com> X-Scanned-By: MIMEDefang 2.67 on 10.5.11.11 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Wed, 10 Feb 2010 17:31:39 +0000 (UTC) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index a944be3..92f5c98 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -374,17 +374,16 @@ static struct kvm *kvm_create_vm(void) #endif #if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER) - { - kvm->mmu_notifier.ops = &kvm_mmu_notifier_ops; - r = mmu_notifier_register(&kvm->mmu_notifier, current->mm); - if (r) { + kvm->mmu_notifier.ops = &kvm_mmu_notifier_ops; + r = mmu_notifier_register(&kvm->mmu_notifier, current->mm); +#endif + + if (r) { #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET - put_page(page); + put_page(page); #endif - goto out_err; - } + goto out_err; } -#endif kvm->mm = current->mm; atomic_inc(&kvm->mm->mm_count); @@ -406,11 +405,8 @@ static struct kvm *kvm_create_vm(void) out: return kvm; -#if defined(KVM_COALESCED_MMIO_PAGE_OFFSET) || \ - (defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)) out_err: hardware_disable_all(); -#endif out_err_nodisable: kfree(kvm); return ERR_PTR(r);