From: Avi Kivity <avi@qumranet.com>
Date: Sat, 6 Jan 2007 00:36:52 +0000 (-0800)
Subject: [PATCH] KVM: MMU: Free pages on kvm destruction
X-Git-Tag: v2.6.20-rc4~29
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f51234c2cd3ab8bed836e09686e27877e1b55f2a;p=linux-2.6

[PATCH] KVM: MMU: Free pages on kvm destruction

Because mmu pages have attached rmap and parent pte chain structures, we need
to zap them before freeing so the attached structures are freed.

Signed-off-by: Avi Kivity <avi@qumranet.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index f163214980..0bd2a19709 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -1065,9 +1065,14 @@ EXPORT_SYMBOL_GPL(kvm_mmu_free_some_pages);
 
 static void free_mmu_pages(struct kvm_vcpu *vcpu)
 {
-	while (!list_empty(&vcpu->free_pages)) {
-		struct kvm_mmu_page *page;
+	struct kvm_mmu_page *page;
 
+	while (!list_empty(&vcpu->kvm->active_mmu_pages)) {
+		page = container_of(vcpu->kvm->active_mmu_pages.next,
+				    struct kvm_mmu_page, link);
+		kvm_mmu_zap_page(vcpu, page);
+	}
+	while (!list_empty(&vcpu->free_pages)) {
 		page = list_entry(vcpu->free_pages.next,
 				  struct kvm_mmu_page, link);
 		list_del(&page->link);