Add pgtable_t to remaining nommu architectures

The pte_fn_t in include/linux/mm.h make it necessary for all architectures
to define a pgtable_t type, even those that do not have an mmu.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/asm-blackfin/page.h

@@ -39,6 +39,7 @@ typedef struct {
 typedef struct {
 	unsigned long pgprot;
 } pgprot_t;
+typedef struct page *pgtable_t;
 
 #define pte_val(x)	((x).pte)
 #define pmd_val(x)	((&x)->pmd[0])

include/asm-h8300/page.h

@@ -31,6 +31,7 @@ typedef struct { unsigned long pte; } pte_t;
 typedef struct { unsigned long pmd[16]; } pmd_t;
 typedef struct { unsigned long pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
 
 #define pte_val(x)	((x).pte)
 #define pmd_val(x)	((&x)->pmd[0])

include/asm-v850/page.h

@@ -57,6 +57,7 @@ typedef struct { unsigned long pte; } pte_t;
 typedef struct { unsigned long pmd; } pmd_t;
 typedef struct { unsigned long pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
+typedef struct page *pgtable_t;
 
 #define pte_val(x)      ((x).pte)
 #define pmd_val(x)      ((x).pmd)