Merge tag 'for-linus-20181012' of git://git.kernel.dk/linux-block
Jens writes:
"block fix for 4.19-rc
Just a single fix that should go in, fixing a regression introduced
in the blk-wbt code."
* tag 'for-linus-20181012' of git://git.kernel.dk/linux-block:
blk-wbt: wake up all when we scale up, not down
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 8e20a067..8ac93fc 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -310,6 +310,7 @@
rq_depth_scale_up(&rwb->rq_depth);
calc_wb_limits(rwb);
rwb->unknown_cnt = 0;
+ rwb_wake_all(rwb);
rwb_trace_step(rwb, "scale up");
}
@@ -318,7 +319,6 @@
rq_depth_scale_down(&rwb->rq_depth, hard_throttle);
calc_wb_limits(rwb);
rwb->unknown_cnt = 0;
- rwb_wake_all(rwb);
rwb_trace_step(rwb, "scale down");
}