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Message-ID: <20250110182149.746551-2-david@redhat.com>
Date: Fri, 10 Jan 2025 19:21:44 +0100
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-mm@...ck.org,
	David Hildenbrand <david@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Muchun Song <muchun.song@...ux.dev>,
	"Matthew Wilcox (Oracle)" <willy@...radead.org>
Subject: [PATCH v1 1/6] mm/huge_memory: convert has_hwpoisoned into a pure folio flag

Let's stop setting it on pages, there is no need to anymore.

Signed-off-by: David Hildenbrand <david@...hat.com>
---
 include/linux/page-flags.h | 6 ++----
 mm/huge_memory.c           | 2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 14226d6bd6f84..3f6a64ff968a7 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -948,11 +948,9 @@ TESTPAGEFLAG_FALSE(TransCompound, transcompound)
  *
  * This flag is set by hwpoison handler.  Cleared by THP split or free page.
  */
-PAGEFLAG(HasHWPoisoned, has_hwpoisoned, PF_SECOND)
-	TESTSCFLAG(HasHWPoisoned, has_hwpoisoned, PF_SECOND)
+FOLIO_FLAG(has_hwpoisoned, FOLIO_SECOND_PAGE)
 #else
-PAGEFLAG_FALSE(HasHWPoisoned, has_hwpoisoned)
-	TESTSCFLAG_FALSE(HasHWPoisoned, has_hwpoisoned)
+FOLIO_FLAG_FALSE(has_hwpoisoned)
 #endif
 
 /*
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 2654a95487499..3d3ebdc002d59 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -3290,7 +3290,7 @@ static void __split_huge_page(struct page *page, struct list_head *list,
 	/* lock lru list/PageCompound, ref frozen by page_ref_freeze */
 	lruvec = folio_lruvec_lock(folio);
 
-	ClearPageHasHWPoisoned(head);
+	folio_clear_has_hwpoisoned(folio);
 
 	for (i = nr - new_nr; i >= new_nr; i -= new_nr) {
 		struct folio *tail;
-- 
2.47.1


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