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Message-ID: <20220625092816.4856-2-linmiaohe@huawei.com>
Date: Sat, 25 Jun 2022 17:28:10 +0800
From: Miaohe Lin <linmiaohe@...wei.com>
To: <akpm@...ux-foundation.org>
CC: <shy828301@...il.com>, <zokeefe@...gle.com>, <aarcange@...hat.com>,
<willy@...radead.org>, <vbabka@...e.cz>, <dhowells@...hat.com>,
<neilb@...e.de>, <apopple@...dia.com>, <david@...hat.com>,
<surenb@...gle.com>, <peterx@...hat.com>, <linux-mm@...ck.org>,
<linux-kernel@...r.kernel.org>, <linmiaohe@...wei.com>
Subject: [PATCH v2 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled() check
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@...wei.com>
Reviewed-by: Yang Shi <shy828301@...il.com>
Reviewed-by: Zach O'Keefe <zokeefe@...gle.com>
---
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
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