[PATCH 01/11] mm/mm_init: verify zones for template-initialized pages

[Muchun Song]

Template-based ZONE_DEVICE initialization bypasses
__init_single_page(), which means copied struct pages do not run the
vmemmap zone consistency check.

Verify each destination after copying the template so the fast path gets
the same validation as regular page initialization.

Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
---
 mm/mm_init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/mm_init.c b/mm/mm_init.c
index a9d848c92678..0129152b74d8 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -1082,6 +1082,7 @@ static void zone_device_page_init_from_template(struct page *page,
 		set_page_address(template, __va(pfn << PAGE_SHIFT));
 #endif
 	memcpy_nontemporal(page, template, sizeof(*page));
+	vmemmap_optimization_verify_zone(page);
 }
 
 /*
-- 
2.54.0