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authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>2011-03-28 10:29:27 +0800
committerAvi Kivity <avi@redhat.com>2011-05-11 07:57:03 -0400
commit7c5625227ff8c81953e953d8e25c3eba2ab0aeb3 (patch)
tree4592af4fbf9e9f95cdd063b5423afee24a1e6b90 /arch/x86/kvm/paging_tmpl.h
parenta0c0ab2feb9d696978a7475dce4253ec62e98a16 (diff)
downloadblackbird-op-linux-7c5625227ff8c81953e953d8e25c3eba2ab0aeb3.tar.gz
blackbird-op-linux-7c5625227ff8c81953e953d8e25c3eba2ab0aeb3.zip
KVM: MMU: remove mmu_seq verification on pte update path
The mmu_seq verification can be removed since we get the pfn in the protection of mmu_lock. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/paging_tmpl.h')
-rw-r--r--arch/x86/kvm/paging_tmpl.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index c6397795d865..74f8567d57ac 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -325,7 +325,7 @@ no_present:
}
static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
- u64 *spte, const void *pte, unsigned long mmu_seq)
+ u64 *spte, const void *pte)
{
pt_element_t gpte;
unsigned pte_access;
@@ -342,8 +342,6 @@ static void FNAME(update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
kvm_release_pfn_clean(pfn);
return;
}
- if (mmu_notifier_retry(vcpu, mmu_seq))
- return;
/*
* we call mmu_set_spte() with host_writable = true because that
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