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-rw-r--r--mm/page-writeback.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 79c3441..e7cb5ff 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1136,14 +1136,11 @@ pause:
__set_current_state(TASK_KILLABLE);
io_schedule_timeout(pause);
- dirty_thresh = hard_dirty_limit(dirty_thresh);
/*
- * max-pause area. If dirty exceeded but still within this
- * area, no need to sleep for more than 200ms: (a) 8 pages per
- * 200ms is typically more than enough to curb heavy dirtiers;
- * (b) the pause time limit makes the dirtiers more responsive.
+ * This is typically equal to (nr_dirty < dirty_thresh) and can
+ * also keep "1000+ dd on a slow USB stick" under control.
*/
- if (nr_dirty < dirty_thresh)
+ if (task_ratelimit)
break;
if (fatal_signal_pending(current))
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