From: Aneesh Kumar K.V Date: Sat, 11 May 2013 22:33:19 +0000 (+0000) Subject: powerpc/mm: Use the correct mask value when looking at pgtable address X-Git-Tag: firefly_0821_release~3680^2~475^2~20 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=613e60a66181acc5c8b63268e939622162da2393;p=firefly-linux-kernel-4.4.55.git powerpc/mm: Use the correct mask value when looking at pgtable address Our pgtable are 2*sizeof(pte_t)*PTRS_PER_PTE which is PTE_FRAG_SIZE. Instead of depending on frag size, mask with PMD_MASKED_BITS. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h index 91acb12bac92..b66ae722a8e9 100644 --- a/arch/powerpc/include/asm/pgalloc-64.h +++ b/arch/powerpc/include/asm/pgalloc-64.h @@ -186,7 +186,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, static inline pgtable_t pmd_pgtable(pmd_t pmd) { - return (pgtable_t)(pmd_val(pmd) & -sizeof(pte_t)*PTRS_PER_PTE); + return (pgtable_t)(pmd_val(pmd) & ~PMD_MASKED_BITS); } static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,