To support shmem large folio swapout in the following patches, using
xa_get_order() to get the order of the swap entry to calculate the swap
usage of shmem.
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
---
mm/shmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index 6244b909b069..42bf3176fa6c 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -881,7 +881,7 @@ unsigned long shmem_partial_swap_usage(struct address_space *mapping,
if (xas_retry(&xas, page))
continue;
if (xa_is_value(page))
- swapped++;
+ swapped += 1 << xa_get_order(xas.xa, xas.xa_index);
if (xas.xa_index == max)
break;
if (need_resched()) {
--
2.39.3
