linux-kernel - [PATCH 1/3] mm: kmsan: use helper function page

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Message-ID: <20230727011612.2721843-2-zhangpeng362@huawei.com>
Date:   Thu, 27 Jul 2023 09:16:10 +0800
From:   Peng Zhang <zhangpeng362@...wei.com>
To:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
CC:     <glider@...gle.com>, <elver@...gle.com>, <dvyukov@...gle.com>,
        <kasan-dev@...glegroups.com>, <akpm@...ux-foundation.org>,
        <wangkefeng.wang@...wei.com>, <sunnanyong@...wei.com>,
        ZhangPeng <zhangpeng362@...wei.com>
Subject: [PATCH 1/3] mm: kmsan: use helper function page_size()

From: ZhangPeng <zhangpeng362@...wei.com>

Use function page_size() to improve code readability. No functional
modification involved.

Signed-off-by: ZhangPeng <zhangpeng362@...wei.com>
---
 mm/kmsan/hooks.c  | 2 +-
 mm/kmsan/shadow.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/kmsan/hooks.c b/mm/kmsan/hooks.c
index ec0da72e65aa..4e3c3e60ba97 100644
--- a/mm/kmsan/hooks.c
+++ b/mm/kmsan/hooks.c
@@ -117,7 +117,7 @@ void kmsan_kfree_large(const void *ptr)
 	page = virt_to_head_page((void *)ptr);
 	KMSAN_WARN_ON(ptr != page_address(page));
 	kmsan_internal_poison_memory((void *)ptr,
-				     PAGE_SIZE << compound_order(page),
+				     page_size(page),
 				     GFP_KERNEL,
 				     KMSAN_POISON_CHECK | KMSAN_POISON_FREE);
 	kmsan_leave_runtime();
diff --git a/mm/kmsan/shadow.c b/mm/kmsan/shadow.c
index b8bb95eea5e3..c7de991f6d7f 100644
--- a/mm/kmsan/shadow.c
+++ b/mm/kmsan/shadow.c
@@ -210,7 +210,7 @@ void kmsan_free_page(struct page *page, unsigned int order)
 		return;
 	kmsan_enter_runtime();
 	kmsan_internal_poison_memory(page_address(page),
-				     PAGE_SIZE << compound_order(page),
+				     page_size(page),
 				     GFP_KERNEL,
 				     KMSAN_POISON_CHECK | KMSAN_POISON_FREE);
 	kmsan_leave_runtime();
-- 
2.25.1