writeback: set max_pause to lowest value on zero bdi_dirty

[cascardo/linux.git] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 17403e3..50f0824 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -989,8 +989,7 @@ static unsigned long bdi_max_pause(struct backing_dev_info *bdi,
         *
         * 8 serves as the safety ratio.
         */
-       if (bdi_dirty)
-               t = min(t, bdi_dirty * HZ / (8 * bw + 1));
+       t = min(t, bdi_dirty * HZ / (8 * bw + 1));
 
        /*
         * The pause time will be settled within range (max_pause/4, max_pause).