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KVM: PPC: E500: Remove E500_TLB_DIRTY flag

Message ID 1345024429-17737-1-git-send-email-agraf@suse.de (mailing list archive)
State New, archived
Headers show

Commit Message

Alexander Graf Aug. 15, 2012, 9:53 a.m. UTC
Since we always mark pages as dirty immediately when mapping them read/write
now, there's no need for the dirty flag in our cache.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/e500.h     |    3 +--
 arch/powerpc/kvm/e500_tlb.c |    4 +---
 2 files changed, 2 insertions(+), 5 deletions(-)
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Patch

diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index aa8b814..d162286 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -27,8 +27,7 @@ 
 #define E500_TLB_NUM   2
 
 #define E500_TLB_VALID 1
-#define E500_TLB_DIRTY 2
-#define E500_TLB_BITMAP 4
+#define E500_TLB_BITMAP 2
 
 struct tlbe_ref {
 	pfn_t pfn;
diff --git a/arch/powerpc/kvm/e500_tlb.c b/arch/powerpc/kvm/e500_tlb.c
index 1af6fab..43489a8 100644
--- a/arch/powerpc/kvm/e500_tlb.c
+++ b/arch/powerpc/kvm/e500_tlb.c
@@ -303,10 +303,8 @@  static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref,
 	ref->pfn = pfn;
 	ref->flags = E500_TLB_VALID;
 
-	if (tlbe_is_writable(gtlbe)) {
-		ref->flags |= E500_TLB_DIRTY;
+	if (tlbe_is_writable(gtlbe))
 		kvm_set_pfn_dirty(pfn);
-	}
 }
 
 static inline void kvmppc_e500_ref_release(struct tlbe_ref *ref)