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-rw-r--r--include/linux/mm.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index c64bd0b67d75..c45739dfdd04 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1544,6 +1544,11 @@ static inline unsigned long folio_pfn(struct folio *folio)
return page_to_pfn(&folio->page);
}
+static inline atomic_t *folio_pincount_ptr(struct folio *folio)
+{
+ return &folio_page(folio, 1)->compound_pincount;
+}
+
/* MIGRATE_CMA and ZONE_MOVABLE do not allow pin pages */
#ifdef CONFIG_MIGRATION
static inline bool is_pinnable_page(struct page *page)