diff mbox series

[v2,3/9] mm: shmem: extend shmem_partial_swap_usage() to support large folio swap

Message ID 61c49050a8aeffecade8c2c407280bf6b92f359e.1718690645.git.baolin.wang@linux.alibaba.com (mailing list archive)
State New
Headers show
Series support large folio swap-out and swap-in for shmem | expand

Commit Message

Baolin Wang June 18, 2024, 6:54 a.m. UTC 
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@linux.alibaba.com>
---
 mm/shmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/shmem.c b/mm/shmem.c
index b90965486631..012a06ef39aa 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -870,7 +870,7 @@  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()) {