Messages in this thread | | | From | Yang Shi <> | Date | Tue, 27 Apr 2021 13:57:27 -0700 | Subject | Re: [PATCH 1/5] mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK |
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On Tue, Apr 27, 2021 at 6:32 AM Miaohe Lin <linmiaohe@huawei.com> wrote: > > Rewrite the pgoff checking logic to remove macro HPAGE_CACHE_INDEX_MASK > which is only used here to simplify the code.
Reviewed-by: Yang Shi <shy828301@gmail.com>
> > Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> > --- > include/linux/huge_mm.h | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h > index 9626fda5efce..0a526f211fec 100644 > --- a/include/linux/huge_mm.h > +++ b/include/linux/huge_mm.h > @@ -152,15 +152,13 @@ static inline bool __transparent_hugepage_enabled(struct vm_area_struct *vma) > > bool transparent_hugepage_enabled(struct vm_area_struct *vma); > > -#define HPAGE_CACHE_INDEX_MASK (HPAGE_PMD_NR - 1) > - > static inline bool transhuge_vma_suitable(struct vm_area_struct *vma, > unsigned long haddr) > { > /* Don't have to check pgoff for anonymous vma */ > if (!vma_is_anonymous(vma)) { > - if (((vma->vm_start >> PAGE_SHIFT) & HPAGE_CACHE_INDEX_MASK) != > - (vma->vm_pgoff & HPAGE_CACHE_INDEX_MASK)) > + if (!IS_ALIGNED((vma->vm_start >> PAGE_SHIFT) - vma->vm_pgoff, > + HPAGE_PMD_NR)) > return false; > } > > -- > 2.23.0 > >
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