x86: put paravirt stubs into common asm/pgalloc.h

Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

arch/x86/mm/pageattr.c

@@ -483,9 +483,7 @@ static int split_large_page(pte_t *kpte, unsigned long address)
 		goto out_unlock;
 
 	pbase = (pte_t *)page_address(base);
-#ifdef CONFIG_X86_32
 	paravirt_alloc_pt(&init_mm, page_to_pfn(base));
-#endif
 	ref_prot = pte_pgprot(pte_clrhuge(*kpte));
 
 #ifdef CONFIG_X86_64

include/asm-x86/pgalloc.h

@@ -5,6 +5,16 @@
 #include <linux/mm.h>		/* for struct page */
 #include <linux/pagemap.h>
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define paravirt_alloc_pt(mm, pfn) do { } while (0)
+#define paravirt_alloc_pd(mm, pfn) do { } while (0)
+#define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0)
+#define paravirt_release_pt(pfn) do { } while (0)
+#define paravirt_release_pd(pfn) do { } while (0)
+#endif
+
 /*
  * Allocate and free page tables.
  */

include/asm-x86/pgalloc_32.h

 #ifndef _I386_PGALLOC_H
 #define _I386_PGALLOC_H
 
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define paravirt_alloc_pt(mm, pfn) do { } while (0)
-#define paravirt_alloc_pd(mm, pfn) do { } while (0)
-#define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0)
-#define paravirt_release_pt(pfn) do { } while (0)
-#define paravirt_release_pd(pfn) do { } while (0)
-#endif
-
 static inline void pmd_populate_kernel(struct mm_struct *mm,
 				       pmd_t *pmd, pte_t *pte)
 {