[PATCH] mm: mglru: use pte_table_clamped_end() helper to calculate the end

[PATCH] mm: mglru: use pte_table_clamped_end() helper to calculate the end

[Baolin Wang]

Use pte_table_clamped_end() to clamp the range to the PTE table and VMA
boundaries when batch-checking young flags, making the code more readable.

No functional changes intended.

Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
---
Based on mm/core.git for-next branch.

Note that this was found while reviewing David's series:
https://lore.kernel.org/all/c31cc8a0-c098-4784-a843-f13f51914094@linux.alibaba.com/
---
 mm/vmscan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 5495d9be90e8..804d4188e7b4 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -4470,7 +4470,7 @@ bool lru_gen_look_around(struct page_vma_mapped_walk *pvmw, unsigned int nr)
 	walk = current->reclaim_state ? current->reclaim_state->mm_walk : NULL;
 
 	start = max(addr & PMD_MASK, vma->vm_start);
-	end = min(addr | ~PMD_MASK, vma->vm_end - 1) + 1;
+	end = pte_table_clamped_end(addr, vma->vm_end);
 
 	if (end - start == PAGE_SIZE)
 		return true;
-- 
2.47.3