[Xen-changelog] [xen-3.1-testing] x86/64: Fix PAE-on-64 mmuext_op() preemption.

["Xen patchbot-3.1-testing" <patchbot-3.1-testing@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1203606936 0
# Node ID 939fccc415c2e1287a165d116d02b9af3eb96750
# Parent  4dc6caabd5faa4a7b4f7afcf7fe5c5c030d480f5
x86/64: Fix PAE-on-64 mmuext_op() preemption.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
xen-unstable changeset:   17096:ea1dc85d7122c6f0c11afbe4500c191b6896056f
xen-unstable date:        Wed Feb 20 18:18:03 2008 +0000
---
 xen/arch/x86/x86_64/compat/mm.c |   12 +-----------
 1 files changed, 1 insertion(+), 11 deletions(-)

diff -r 4dc6caabd5fa -r 939fccc415c2 xen/arch/x86/x86_64/compat/mm.c
--- a/xen/arch/x86/x86_64/compat/mm.c   Thu Feb 21 15:15:02 2008 +0000
+++ b/xen/arch/x86/x86_64/compat/mm.c   Thu Feb 21 15:15:36 2008 +0000
@@ -194,18 +194,8 @@ int compat_mmuext_op(XEN_GUEST_HANDLE(mm
     for ( ; count; count -= i )
     {
         mmuext_op_t *nat_op = nat_ops.p;
-        unsigned int limit;
+        unsigned int limit = COMPAT_ARG_XLAT_SIZE / sizeof(*nat_op);
         int err;
-
-        if ( hypercall_preempt_check() )
-        {
-            rc = hypercall_create_continuation(
-                __HYPERVISOR_mmuext_op, "hihi",
-                cmp_uops, count | MMU_UPDATE_PREEMPTED, pdone, foreigndom);
-            break;
-        }
-
-        limit = COMPAT_ARG_XLAT_SIZE / sizeof(*nat_op);
 
         for ( i = 0; i < min(limit, count); ++i )
         {

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