linux-kernel - [PATCH v2 8/8] mm/z3fold: remove unneeded PAGE_HEADLESS check in free

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Message-ID: <20220308134311.59086-9-linmiaohe@huawei.com>
Date:   Tue, 8 Mar 2022 21:43:11 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <vitaly.wool@...sulko.com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH v2 8/8] mm/z3fold: remove unneeded PAGE_HEADLESS check in free_handle()

The only caller z3fold_free() never calls free_handle() in PAGE_HEADLESS
case. Remove this unneeded check.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
Reviewed-by: Vitaly Wool <vitaly.wool@...sulko.com>
---
 mm/z3fold.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 867c590df027..83b5a3514427 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -297,9 +297,6 @@ static inline void free_handle(unsigned long handle, struct z3fold_header *zhdr)
 	int i;
 	bool is_free;
 
-	if (handle & (1 << PAGE_HEADLESS))
-		return;
-
 	if (WARN_ON(*(unsigned long *)handle == 0))
 		return;
 
-- 
2.23.0