mm/page_alloc: replace flag check with PageHWPoison() in check_new_page_bad()

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.

Link: https://lkml.kernel.org/r/20250320063346.489030-1-ye.liu@linux.dev
Signed-off-by: Ye Liu <liuye@kylinos.cn>
Reviewed-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 37d111184eeebdadad987e376773a958442baa60..e892a55b471cd263a4c7e3dd7d1421a9eb09578a 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1593,7 +1593,7 @@ 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);