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Subject[PATCH 1/5] mm/huge_memory.c: remove dedicated macro HPAGE_CACHE_INDEX_MASK
Date
Rewrite the pgoff checking logic to remove macro HPAGE_CACHE_INDEX_MASK
which is only used here to simplify the code.

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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