- calculate zapped page number properly in mmu_zap_unsync_children()
- calculate freeed page number properly kvm_mmu_change_mmu_pages()
Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx>
---
arch/x86/kvm/mmu.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a23ca75..41cccd4 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1481,13 +1481,16 @@ static int mmu_zap_unsync_children(struct kvm *kvm,
struct kvm_mmu_page *sp;
for_each_sp(pages, sp, parents, i) {
+ if (list_empty(&kvm->arch.active_mmu_pages))
+ goto exit;
+
kvm_mmu_zap_page(kvm, sp);
mmu_pages_clear_parents(&parents);
+ zapped++;
}
- zapped += pages.nr;
kvm_mmu_pages_init(parent, &parents, &pages);
}
-
+exit:
return zapped;
}
@@ -1540,7 +1543,7 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages)
page = container_of(kvm->arch.active_mmu_pages.prev,
struct kvm_mmu_page, link);
- kvm_mmu_zap_page(kvm, page);
+ used_pages -= kvm_mmu_zap_page(kvm, page);
used_pages--;
}
kvm->arch.n_free_mmu_pages = 0;
@@ -1589,7 +1592,8 @@ static void mmu_unshadow(struct kvm *kvm, gfn_t gfn)
&& !sp->role.invalid) {
pgprintk("%s: zap %lx %x\n",
__func__, gfn, sp->role.word);
- kvm_mmu_zap_page(kvm, sp);
+ if (kvm_mmu_zap_page(kvm, sp))
+ nn = bucket->first;
}
}
}
--
1.6.1.2
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