This commit added an omitted comma to separate clauses, to ensure
grammatical correctness.

Signed-off-by: Yu-Cheng Chen <otteryc210@gmail.com>
---
 mm/ksm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 8c001819c..b4de5a9ed 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -385,7 +385,7 @@ static unsigned long ewma(unsigned long prev, unsigned long curr)
  *
  *      new_pages_to_scan = pages_to_scan * (scan_time / target_scan_time)
  *
- * To avoid perturbations it calculates a change factor of previous changes.
+ * To avoid perturbations, it calculates a change factor of previous changes.
  * A new change factor is calculated for each iteration and it uses an
  * exponentially weighted moving average. The new pages_to_scan value is
  * multiplied with that change factor:
-- 
2.34.1