+ mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix.patch added to mm-new branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix
has been added to the -mm mm-new branch.  Its filename is
     mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Andrew Morton <akpm@linux-foundation.org>
Subject: mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix
Date: Sun Apr  6 10:06:36 PM PDT 2025

simplify __dump_folio(), per David

Cc: David Hildenbrand <david@redhat.com>
Cc: Gavin Shan <gshan@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: gehao <gehao@kylinos.cn>
Cc: Matthew Wilcow (Oracle) <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/debug.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/mm/debug.c~mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix
+++ a/mm/debug.c
@@ -74,7 +74,9 @@ static void __dump_folio(struct folio *f
 	int mapcount = atomic_read(&page->_mapcount) + 1;
 	char *type = "";
 
-	mapcount = page_mapcount_is_type(mapcount) ? 0 : mapcount;
+	if (page_mapcount_is_type(mapcount))
+		mapcount = 0;
+
 	pr_warn("page: refcount:%d mapcount:%d mapping:%p index:%#lx pfn:%#lx\n",
 			folio_ref_count(folio), mapcount, mapping,
 			folio->index + idx, pfn);
_

Patches currently in -mm which might be from akpm@linux-foundation.org are

radix-tree-add-missing-cleanuph-fix.patch
mm-debug-fix-parameter-passed-to-page_mapcount_is_type-fix.patch
samples-livepatch-add-module-descriptions-fix.patch
mm-kasan-add-module-decription-fix.patch