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@xxxxxxxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
---
arch/microblaze/include/asm/pgalloc.h | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index ebd3579248..7fdf7fabc7 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -122,8 +122,13 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
#endif
ptepage = alloc_pages(flags, 0);
- if (ptepage)
- clear_highpage(ptepage);
+ if (!ptepage)
+ return NULL;
+ clear_highpage(ptepage);
+ if (!pgtable_page_ctor(ptepage)) {
+ __free_page(ptepage);
+ return NULL;
+ }
return ptepage;
}
@@ -158,8 +163,9 @@ extern inline void pte_free_slow(struct page *ptepage)
__free_page(ptepage);
}
-extern inline void pte_free(struct mm_struct *mm, struct page *ptepage)
+static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
{
+ pgtable_page_dtor(ptepage);
__free_page(ptepage);
}
--
1.8.4.rc3
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