Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759526AbYGOMNz (ORCPT ); Tue, 15 Jul 2008 08:13:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756111AbYGOMMo (ORCPT ); Tue, 15 Jul 2008 08:12:44 -0400 Received: from il.qumranet.com ([212.179.150.194]:30329 "EHLO il.qumranet.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755611AbYGOMMk (ORCPT ); Tue, 15 Jul 2008 08:12:40 -0400 From: Avi Kivity To: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Carsten Otte Subject: [PATCH 04/19] KVM: s390: dont allocate dirty bitmap Date: Tue, 15 Jul 2008 15:12:23 +0300 Message-Id: <1216123958-10717-5-git-send-email-avi@qumranet.com> X-Mailer: git-send-email 1.5.6.1 In-Reply-To: <1216123958-10717-1-git-send-email-avi@qumranet.com> References: <1216123958-10717-1-git-send-email-avi@qumranet.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1409 Lines: 42 From: Carsten Otte This patch #ifdefs the bitmap array for dirty tracking. We don't have dirty tracking on s390 today, and we'd love to use our storage keys to store the dirty information for migration. Therefore, we won't need this array at all, and due to our limited amount of vmalloc space this limits the amount of guests we can run. Signed-off-by: Carsten Otte Signed-off-by: Avi Kivity --- virt/kvm/kvm_main.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f9427e2..b90da0b 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -359,6 +359,7 @@ int __kvm_set_memory_region(struct kvm *kvm, r = -ENOMEM; /* Allocate if a slot is being created */ +#ifndef CONFIG_S390 if (npages && !new.rmap) { new.rmap = vmalloc(npages * sizeof(struct page *)); @@ -399,6 +400,7 @@ int __kvm_set_memory_region(struct kvm *kvm, goto out_free; memset(new.dirty_bitmap, 0, dirty_bytes); } +#endif /* not defined CONFIG_S390 */ if (mem->slot >= kvm->nmemslots) kvm->nmemslots = mem->slot + 1; -- 1.5.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/