linux-kernel - [PATCH] mm/huge_memory: remove unneeded local variable follflags

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Message-ID: <20220310131253.30970-1-linmiaohe@huawei.com>
Date:   Thu, 10 Mar 2022 21:12:53 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH] mm/huge_memory: remove unneeded local variable follflags

We can pass FOLL_GET | FOLL_DUMP to follow_page directly to simplify
the code a bit.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/huge_memory.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 3557aabe86fe..418d077da246 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2838,7 +2838,6 @@ static int split_huge_pages_pid(int pid, unsigned long vaddr_start,
 	 */
 	for (addr = vaddr_start; addr < vaddr_end; addr += PAGE_SIZE) {
 		struct vm_area_struct *vma = find_vma(mm, addr);
-		unsigned int follflags;
 		struct page *page;
 
 		if (!vma || addr < vma->vm_start)
@@ -2851,8 +2850,7 @@ static int split_huge_pages_pid(int pid, unsigned long vaddr_start,
 		}
 
 		/* FOLL_DUMP to ignore special (like zero) pages */
-		follflags = FOLL_GET | FOLL_DUMP;
-		page = follow_page(vma, addr, follflags);
+		page = follow_page(vma, addr, FOLL_GET | FOLL_DUMP);
 
 		if (IS_ERR(page))
 			continue;
-- 
2.23.0