[PATCH 2/3] block: Correct comment for scale_cookie_change

[Kemeng Shi]

Default queue depth of iolatency_grp is unlimited, so we scale down
quickly(once by half) in scale_cookie_change. Remove the "subtract
1/16th" part which is not the truth.

Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxx>
---
 block/blk-iolatency.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index a8cc5abe91e5..2666afd7abdb 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -364,7 +364,7 @@ static void scale_cookie_change(struct blk_iolatency *blkiolat,
 }
 
 /*
- * Change the queue depth of the iolatency_grp.  We add/subtract 1/16th of the
+ * Change the queue depth of the iolatency_grp.  We add 1/16th of the
  * queue depth at a time so we don't get wild swings and hopefully dial in to
  * fairer distribution of the overall queue depth.
  */
-- 
2.30.0