linux-kernel - [PATCH 1/4] KVM: MMU: Use __gfn_to_rmap() to clean up kvm_handle

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Message-Id: <20120615203059.a1447c39.yoshikawa.takuya@oss.ntt.co.jp>
Date:	Fri, 15 Jun 2012 20:30:59 +0900
From:	Takuya Yoshikawa <yoshikawa.takuya@....ntt.co.jp>
To:	avi@...hat.com, mtosatti@...hat.com
Cc:	agraf@...e.de, paulus@...ba.org, aarcange@...hat.com,
	kvm@...r.kernel.org, kvm-ppc@...r.kernel.org,
	linux-kernel@...r.kernel.org, takuya.yoshikawa@...il.com
Subject: [PATCH 1/4] KVM: MMU: Use __gfn_to_rmap() to clean up
 kvm_handle_hva()

We can treat every level uniformly.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@....ntt.co.jp>
---
 arch/x86/kvm/mmu.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 24dd43d..a2f3969 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1207,14 +1207,14 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
 			gfn_t gfn_offset = (hva - start) >> PAGE_SHIFT;
 			gfn_t gfn = memslot->base_gfn + gfn_offset;
 
-			ret = handler(kvm, &memslot->rmap[gfn_offset], data);
+			ret = 0;
 
-			for (j = 0; j < KVM_NR_PAGE_SIZES - 1; ++j) {
-				struct kvm_lpage_info *linfo;
+			for (j = PT_PAGE_TABLE_LEVEL;
+			     j < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++j) {
+				unsigned long *rmapp;
 
-				linfo = lpage_info_slot(gfn, memslot,
-							PT_DIRECTORY_LEVEL + j);
-				ret |= handler(kvm, &linfo->rmap_pde, data);
+				rmapp = __gfn_to_rmap(gfn, j, memslot);
+				ret |= handler(kvm, rmapp, data);
 			}
 			trace_kvm_age_page(hva, memslot, ret);
 			retval |= ret;
-- 
1.7.5.4

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