linux-kernel - [PATCH] mm/hugetlb: remove duplicate codes of setting compound

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Date:   Wed,  3 Feb 2021 12:40:55 +0800
From:   yanfei.xu@...driver.com
To:     mike.kravetz@...cle.com, akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mm/hugetlb: remove duplicate codes of setting compound_nr

From: Yanfei Xu <yanfei.xu@...driver.com>

set_compound_order() set both of page's compound_order and
compound_nr. It's no need to assign to compound_nr again, so
remove it.

Signed-off-by: Yanfei Xu <yanfei.xu@...driver.com>
---
 mm/hugetlb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a3e4fa2c5e94..ac249b1583de 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1228,7 +1228,6 @@ static void destroy_compound_gigantic_page(struct page *page,
 	}
 
 	set_compound_order(page, 0);
-	page[1].compound_nr = 0;
 	__ClearPageHead(page);
 }
 
-- 
2.27.0