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-rw-r--r--mm/vmscan.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c5ef7240cbcb..961401c46334 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2456,9 +2456,11 @@ out:
/*
* Scan types proportional to swappiness and
* their relative recent reclaim efficiency.
+ * Make sure we don't miss the last page
+ * because of a round-off error.
*/
- scan = div64_u64(scan * fraction[file],
- denominator);
+ scan = DIV64_U64_ROUND_UP(scan * fraction[file],
+ denominator);
break;
case SCAN_FILE:
case SCAN_ANON: