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 <[email protected]> Cc: David Howells <[email protected]> Cc: Koichi Yasutake <[email protected]> --- arch/mn10300/include/asm/pgalloc.h | 1 + arch/mn10300/mm/pgtable.c | 9 +++++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/mn10300/include/asm/pgalloc.h b/arch/mn10300/include/asm/pgalloc.h index 146bacf193..0f25d5fa86 100644 --- a/arch/mn10300/include/asm/pgalloc.h +++ b/arch/mn10300/include/asm/pgalloc.h @@ -46,6 +46,7 @@ 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); } diff --git a/arch/mn10300/mm/pgtable.c b/arch/mn10300/mm/pgtable.c index bd9ada693f..e77a7c7280 100644 --- a/arch/mn10300/mm/pgtable.c +++ b/arch/mn10300/mm/pgtable.c @@ -78,8 +78,13 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) #else pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); #endif - if (pte) - clear_highpage(pte); + if (!pte) + return NULL; + clear_highpage(pte); + if (!pgtable_page_ctor(pte)) { + __free_page(pte); + return NULL; + } return pte; } -- 1.8.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
