add clock init

[firefly-linux-kernel-4.4.55.git] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 4514ad7415c327bfbbe9837f3a7955291f3a172d..aca4364275b540fa1d224a3181cfeb1978c8da94 100644 (file)
--- 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,