From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932104AbZEFV5o (ORCPT ); Wed, 6 May 2009 17:57:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761417AbZEFVy2 (ORCPT ); Wed, 6 May 2009 17:54:28 -0400 Received: from kroah.org ([198.145.64.141]:56961 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761395AbZEFVyZ (ORCPT ); Wed, 6 May 2009 17:54:25 -0400 X-Mailbox-Line: From gregkh@mini.kroah.org Wed May 6 14:47:56 2009 Message-Id: <20090506214756.428397771@mini.kroah.org> User-Agent: quilt/0.48-1 Date: Wed, 06 May 2009 14:45:37 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org, Chris Wright Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , Chris Wedgwood , Michael Krufky , Chuck Ebbert , Domenico Andreoli , Willy Tarreau , Rodrigo Rubira Branco , Jake Edge , Eugene Teo , torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Marcelo Tosatti , Avi Kivity , Chris Wright Subject: [patch 09/58] KVM: MMU: disable global page optimization References: <20090506214528.660389067@mini.kroah.org> Content-Disposition: inline; filename=kvm-mmu-disable-global-page-optimization.patch In-Reply-To: <20090506215017.GA21981@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.29-stable review patch. If anyone has any objections, please let us know. ------------------ From: Marcelo Tosatti upstream commit: bf47a760f66add7870fba33ab50f58b550d6bbd1 Complexity to fix it not worthwhile the gains, as discussed in http://article.gmane.org/gmane.comp.emulators.kvm.devel/28649. Cc: stable@kernel.org Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity [mtosatti: backport to 2.6.29] Signed-off-by: Chris Wright --- arch/x86/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -797,7 +797,7 @@ static struct kvm_mmu_page *kvm_mmu_allo ASSERT(is_empty_shadow_page(sp->spt)); bitmap_zero(sp->slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS); sp->multimapped = 0; - sp->global = 1; + sp->global = 0; sp->parent_pte = parent_pte; --vcpu->kvm->arch.n_free_mmu_pages; return sp;