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From: Peng Zhang <zhangpeng362@huawei.com>
To: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>
Cc: <glider@google.com>, <elver@google.com>, <dvyukov@google.com>,
	<kasan-dev@googlegroups.com>, <akpm@linux-foundation.org>,
	<wangkefeng.wang@huawei.com>, <sunnanyong@huawei.com>,
	ZhangPeng <zhangpeng362@huawei.com>
Subject: [PATCH 1/3] mm: kmsan: use helper function page_size()
Date: Thu, 27 Jul 2023 09:16:10 +0800	[thread overview]
Message-ID: <20230727011612.2721843-2-zhangpeng362@huawei.com> (raw)
In-Reply-To: <20230727011612.2721843-1-zhangpeng362@huawei.com>

From: ZhangPeng <zhangpeng362@huawei.com>

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

Signed-off-by: ZhangPeng <zhangpeng362@huawei.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



  reply	other threads:[~2023-07-27  1:16 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-27  1:16 [PATCH 0/3] minor cleanups for kmsan Peng Zhang
2023-07-27  1:16 ` Peng Zhang [this message]
2023-07-31 17:00   ` [PATCH 1/3] mm: kmsan: use helper function page_size() Alexander Potapenko
2023-07-27  1:16 ` [PATCH 2/3] mm: kmsan: use helper macro offset_in_page() Peng Zhang
2023-07-31 17:01   ` Alexander Potapenko
2023-07-27  1:16 ` [PATCH 3/3] mm: kmsan: use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN Peng Zhang
2023-07-31 17:02   ` Alexander Potapenko
2023-07-31 17:02     ` Alexander Potapenko

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