[Xen-devel] [PATCH] linux/x86-64: use xen_new_user_pt() rather than open-coding it

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

As usual, written and tested on 2.6.26 and made apply to the 2.6.18
tree without further testing.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

Index: head-2008-08-07/drivers/xen/core/machine_reboot.c
===================================================================
--- head-2008-08-07.orig/drivers/xen/core/machine_reboot.c      2008-08-07 
12:44:36.000000000 +0200
+++ head-2008-08-07/drivers/xen/core/machine_reboot.c   2008-08-07 
13:59:00.000000000 +0200
@@ -184,14 +184,8 @@ static int take_machine_down(void *_susp
                 * We do it here just in case, but there's no need if we are
                 * in fast-suspend mode as that implies a new enough Xen.
                 */
-               if (!suspend->fast_suspend) {
-                       struct mmuext_op op;
-                       op.cmd = MMUEXT_NEW_USER_BASEPTR;
-                       op.arg1.mfn = pfn_to_mfn(__pa(__user_pgd(
-                               current->active_mm->pgd)) >> PAGE_SHIFT);
-                       if (HYPERVISOR_mmuext_op(&op, 1, NULL, DOMID_SELF))
-                               BUG();
-               }
+               if (!suspend->fast_suspend)
+                       
xen_new_user_pt(__pa(__user_pgd(current->active_mm->pgd));
 #endif
        }
        time_resume();




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