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Diffstat (limited to 'mm/swapfile.c')
-rw-r--r--mm/swapfile.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 96606580ee09..f6ca215fb92f 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -902,7 +902,7 @@ static int scan_swap_map_slots(struct swap_info_struct *si,
last_in_cluster = offset + SWAPFILE_CLUSTER - 1;
/* Locate the first empty (unaligned) cluster */
- for (; last_in_cluster <= si->highest_bit; offset++) {
+ for (; last_in_cluster <= READ_ONCE(si->highest_bit); offset++) {
if (si->swap_map[offset])
last_in_cluster = offset + SWAPFILE_CLUSTER;
else if (offset == last_in_cluster) {