X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=mm%2Fpage-writeback.c;h=aca4364275b540fa1d224a3181cfeb1978c8da94;hb=845faabf3e52ce83481f5d6896cc5c5619bef1e6;hp=4514ad7415c327bfbbe9837f3a7955291f3a172d;hpb=0e32fde96bb9c1fa8fa477e52c1d6ae2f4995cea;p=firefly-linux-kernel-4.4.55.git

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 4514ad7415c3..aca4364275b5 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1104,11 +1104,11 @@ static unsigned long dirty_poll_interval(unsigned long dirty,
 	return 1;
 }
 
-static long bdi_max_pause(struct backing_dev_info *bdi,
-			  unsigned long bdi_dirty)
+static unsigned long bdi_max_pause(struct backing_dev_info *bdi,
+				   unsigned long bdi_dirty)
 {
-	long bw = bdi->avg_write_bandwidth;
-	long t;
+	unsigned long bw = bdi->avg_write_bandwidth;
+	unsigned long t;
 
 	/*
 	 * Limit pause time for small memory systems. If sleeping for too long
@@ -1120,7 +1120,7 @@ static long bdi_max_pause(struct backing_dev_info *bdi,
 	t = bdi_dirty / (1 + bw / roundup_pow_of_two(1 + HZ / 8));
 	t++;
 
-	return min_t(long, t, MAX_PAUSE);
+	return min_t(unsigned long, t, MAX_PAUSE);
 }
 
 static long bdi_min_pause(struct backing_dev_info *bdi,