Patchwork [37/56] KVM: PPC: E500: Remove E500_TLB_DIRTY flag

login
register
mail settings
Submitter Alexander Graf
Date Oct. 4, 2012, 1:37 p.m.
Message ID <1349357844-11288-38-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/189133/
State New
Headers show

Comments

Alexander Graf - Oct. 4, 2012, 1:37 p.m.
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(-)

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)