linux-kernel - [PATCH 1/3] mm/zsmalloc.c: remove confusing code in obj

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Message-ID: <20210624123930.1769093-2-linmiaohe@huawei.com>
Date:   Thu, 24 Jun 2021 20:39:28 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>, <minchan@...nel.org>,
        <ngupta@...are.org>
CC:     <senozhatsky@...omium.org>, <linux-kernel@...r.kernel.org>,
        <linux-mm@...ck.org>, <linmiaohe@...wei.com>
Subject: [PATCH 1/3] mm/zsmalloc.c: remove confusing code in obj_free()

OBJ_ALLOCATED_TAG is only set for handle to indicate allocated object. It's
irrelevant with obj. So remove this misleading code to improve readability.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/zsmalloc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 0b0addd34ea6..1476289b619f 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1471,7 +1471,6 @@ static void obj_free(struct size_class *class, unsigned long obj)
 	unsigned int f_objidx;
 	void *vaddr;
 
-	obj &= ~OBJ_ALLOCATED_TAG;
 	obj_to_location(obj, &f_page, &f_objidx);
 	f_offset = (class->size * f_objidx) & ~PAGE_MASK;
 	zspage = get_zspage(f_page);
-- 
2.23.0