openrisc: add missing pgtable_page_ctor/dtor calls
authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Thu, 14 Nov 2013 22:31:23 +0000 (14:31 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 15 Nov 2013 00:32:16 +0000 (09:32 +0900)
It will fix NR_PAGETABLE accounting.  It's also required if the arch is
going ever support split ptl.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/openrisc/include/asm/pgalloc.h

index 05c39ec..21484e5 100644 (file)
@@ -78,8 +78,13 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 {
        struct page *pte;
        pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
-       if (pte)
-               clear_page(page_address(pte));
+       if (!pte)
+               return NULL;
+       clear_page(page_address(pte));
+       if (!pgtable_page_ctor(pte)) {
+               __free_page(pte);
+               return NULL;
+       }
        return pte;
 }
 
@@ -90,6 +95,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 static inline void pte_free(struct mm_struct *mm, struct page *pte)
 {
+       pgtable_page_dtor(pte);
        __free_page(pte);
 }