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-rw-r--r--drivers/md/bcache/writeback.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 73f0efac2b9f..262f7ef20992 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -122,6 +122,9 @@ static void __update_writeback_rate(struct cached_dev *dc)
static bool set_at_max_writeback_rate(struct cache_set *c,
struct cached_dev *dc)
{
+ /* Don't set max writeback rate if gc is running */
+ if (!c->gc_mark_valid)
+ return false;
/*
* Idle_counter is increased everytime when update_writeback_rate() is
* called. If all backing devices attached to the same cache set have