linux-kernel - [PATCH] mm/page_alloc: Replace flag check with PageHWPoison() in check_new_page

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Message-Id: <20250320063346.489030-1-ye.liu@linux.dev>
Date: Thu, 20 Mar 2025 14:33:46 +0800
From: Ye Liu <ye.liu@...ux.dev>
To: akpm@...ux-foundation.org
Cc: linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Ye Liu <liuye@...inos.cn>
Subject: [PATCH] mm/page_alloc: Replace flag check with PageHWPoison() in check_new_page_bad()

From: Ye Liu <liuye@...inos.cn>

This patch replaces the direct check for the __PG_HWPOISON flag with
the PageHWPoison() macro, improving code readability and maintaining
consistency with other parts of the memory management code.

Signed-off-by: Ye Liu <liuye@...inos.cn>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fe76fd237dd0..6ef54abebf51 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1427,7 +1427,7 @@ static __always_inline void page_del_and_expand(struct zone *zone,
 
 static void check_new_page_bad(struct page *page)
 {
-	if (unlikely(page->flags & __PG_HWPOISON)) {
+	if (unlikely(PageHWPoison(page))) {
 		/* Don't complain about hwpoisoned pages */
 		if (PageBuddy(page))
 			__ClearPageBuddy(page);
-- 
2.25.1