writeback: trace event bdi_dirty_ratelimit

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

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 0802d51..e3c2d8b 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -875,6 +875,8 @@ static void bdi_update_dirty_ratelimit(struct backing_dev_info *bdi,
 
        bdi->dirty_ratelimit = max(dirty_ratelimit, 1UL);
        bdi->balanced_dirty_ratelimit = balanced_dirty_ratelimit;
+
+       trace_bdi_dirty_ratelimit(bdi, dirty_rate, task_ratelimit);
 }
 
 void __bdi_update_bandwidth(struct backing_dev_info *bdi,