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-rw-r--r--include/linux/swap.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index bb5adc604144..e5cf58a1cf9e 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -339,6 +339,15 @@ static inline swp_entry_t folio_swap_entry(struct folio *folio)
return entry;
}
+static inline swp_entry_t page_swap_entry(struct page *page)
+{
+ struct folio *folio = page_folio(page);
+ swp_entry_t entry = folio_swap_entry(folio);
+
+ entry.val += folio_page_idx(folio, page);
+ return entry;
+}
+
static inline void folio_set_swap_entry(struct folio *folio, swp_entry_t entry)
{
folio->private = (void *)entry.val;