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-rw-r--r--mm/swap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/swap.c b/mm/swap.c
index 2f12a2ee1d3a..b9a6817e07ff 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -43,8 +43,9 @@
#define CREATE_TRACE_POINTS
#include <trace/events/pagemap.h>
-/* How many pages do we try to swap or page in/out together? */
+/* How many pages do we try to swap or page in/out together? As a power of 2 */
int page_cluster;
+const int page_cluster_max = 31;
/* Protecting only lru_rotate.fbatch which requires disabling interrupts */
struct lru_rotate {