[PATCH 07/11] blk-throttle: remove incorrect comment for tg_last_low_overflow_time

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Function tg_last_low_overflow_time is called with intermediate node as
following:
throtl_hierarchy_can_downgrade
  throtl_tg_can_downgrade
    tg_last_low_overflow_time

throtl_hierarchy_can_upgrade
  throtl_tg_can_upgrade
    tg_last_low_overflow_time

throtl_hierarchy_can_downgrade/throtl_hierarchy_can_upgrade will traverse
from leaf node to sub-root node and pass traversed intermediate node
to tg_last_low_overflow_time.

No such limit could be found from context and implementation of
tg_last_low_overflow_time, so remove this limit in comment.

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

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 0aa21832cb96..bd07f562c799 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1746,7 +1746,6 @@ static unsigned long __tg_last_low_overflow_time(struct throtl_grp *tg)
 	return min(rtime, wtime);
 }
 
-/* tg should not be an intermediate node */
 static unsigned long tg_last_low_overflow_time(struct throtl_grp *tg)
 {
 	struct throtl_service_queue *parent_sq;
-- 
2.30.0




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