[Xen-changelog] [xen-unstable] [XEN] Consistent assumption that PTEs contain MFNs in both ptwr

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1168596805 0
# Node ID ded167dc4dc9180ee5ad79de2e9116bf2919d21f
# Parent  95a0b456255a011d55dfddd2eedead62b41dc751
[XEN] Consistent assumption that PTEs contain MFNs in both ptwr
page-fault handler and ptwr emulation handler.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 xen/arch/x86/mm.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff -r 95a0b456255a -r ded167dc4dc9 xen/arch/x86/mm.c
--- a/xen/arch/x86/mm.c Fri Jan 12 10:10:28 2007 +0000
+++ b/xen/arch/x86/mm.c Fri Jan 12 10:13:25 2007 +0000
@@ -3182,7 +3182,7 @@ static int ptwr_emulated_update(
     unsigned int do_cmpxchg,
     struct ptwr_emulate_ctxt *ptwr_ctxt)
 {
-    unsigned long gmfn, mfn;
+    unsigned long mfn;
     struct page_info *page;
     l1_pgentry_t pte, ol1e, nl1e, *pl1e;
     struct vcpu *v = current;
@@ -3222,8 +3222,7 @@ static int ptwr_emulated_update(
     }
 
     pte  = ptwr_ctxt->pte;
-    gmfn = l1e_get_pfn(pte);
-    mfn  = gmfn_to_mfn(d, gmfn);
+    mfn  = l1e_get_pfn(pte);
     page = mfn_to_page(mfn);
 
     /* We are looking only for read-only mappings of p.t. pages. */

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