KVM: MMU: remove oos_shadow parameter

The unsync code should be stable now, maybe it is the time to remove this
parameter to cleanup the code a little bit

Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 262a3af1f0ec..b1178d1bb8f5 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -93,9 +93,6 @@ static int dbg = 0;
 module_param(dbg, bool, 0644);
 #endif
 
-static int oos_shadow = 1;
-module_param(oos_shadow, bool, 0644);
-
 #ifndef MMU_DEBUG
 #define ASSERT(x) do { } while (0)
 #else
@@ -2196,8 +2193,6 @@ static int mmu_need_write_protect(struct kvm_vcpu *vcpu, gfn_t gfn,
                         return 1;
 
                 if (!need_unsync && !s->unsync) {
-                        if (!oos_shadow)
-                                return 1;
                         need_unsync = true;
                 }
         }