[PATCH v2 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled() check

From: Miaohe Lin
Date: Sat Jun 25 2022 - 05:28:27 EST


If we reach here, khugepaged_scan_mm_slot() has already made sure that
hugepage is enabled for shmem, via its call to hugepage_vma_check().
Remove this duplicated check.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Yang Shi <shy828301@xxxxxxxxx>
Reviewed-by: Zach O'Keefe <zokeefe@xxxxxxxxxx>
---
mm/khugepaged.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index d8ebb60aae36..8a103e0f8d2b 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2119,8 +2119,6 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
if (khugepaged_scan.address < hstart)
khugepaged_scan.address = hstart;
VM_BUG_ON(khugepaged_scan.address & ~HPAGE_PMD_MASK);
- if (shmem_file(vma->vm_file) && !shmem_huge_enabled(vma))
- goto skip;

while (khugepaged_scan.address < hend) {
int ret;
--
2.23.0