[Xen-devel] [PATCH] linux: Fix backward compatibility in page table handling

["Jan Beulich" <jbeulich@xxxxxxxxxx>]

A 3.0.2 compatibility requirement slipped my attention before
submitting the original page table handling changes.

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

Index: sle10sp1-2007-02-20/include/asm-i386/mach-xen/asm/page.h
===================================================================
--- sle10sp1-2007-02-20.orig/include/asm-i386/mach-xen/asm/page.h       
2007-02-26 10:23:57.000000000 +0100
+++ sle10sp1-2007-02-20/include/asm-i386/mach-xen/asm/page.h    2007-02-26 
10:26:14.000000000 +0100
@@ -139,7 +139,11 @@
 static inline unsigned long pgd_val(pgd_t x)
 {
        unsigned long ret = x.pgd;
+#ifdef CONFIG_XEN_COMPAT_030002
+       if (ret) ret = machine_to_phys(ret) | _PAGE_PRESENT;
+#else
        if (ret & _PAGE_PRESENT) ret = machine_to_phys(ret);
+#endif
        return ret;
 }
 #define HPAGE_SHIFT    22



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