hexagon: switch to generic version of pte allocation

The hexagon implementation pte_alloc_one(), pte_alloc_one_kernel(),
pte_free_kernel() and pte_free() is identical to the generic except of
lack of __GFP_ACCOUNT for the user PTEs allocation.

Switch hexagon to use generic version of these functions.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index 3c9e1bd9a3e97e07d56d5428b2d282e0f6f0e8f8..d6544dc712587eef6e857a5405ac6b237d81ac8e 100644 (file)
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -11,6 +11,8 @@
 #include <asm/mem-layout.h>
 #include <asm/atomic.h>
 
+#include <asm-generic/pgalloc.h>       /* for pte_{alloc,free}_one */
+
 #define check_pgt_cache() do {} while (0)
 
 extern unsigned long long kmap_generation;
@@ -46,38 +48,6 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
        free_page((unsigned long) pgd);
 }
 
-static inline struct page *pte_alloc_one(struct mm_struct *mm)
-{
-       struct page *pte;
-
-       pte = alloc_page(GFP_KERNEL | __GFP_ZERO);
-       if (!pte)
-               return NULL;
-       if (!pgtable_page_ctor(pte)) {
-               __free_page(pte);
-               return NULL;
-       }
-       return pte;
-}
-
-/* _kernel variant gets to use a different allocator */
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
-{
-       gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
-       return (pte_t *) __get_free_page(flags);
-}
-
-static inline void pte_free(struct mm_struct *mm, struct page *pte)
-{
-       pgtable_page_dtor(pte);
-       __free_page(pte);
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
-       free_page((unsigned long)pte);
-}
-
 static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
                                pgtable_t pte)
 {