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authorKemeng Shi <shikemeng@huawei.com>2022-12-05 19:57:07 +0800
committerJens Axboe <axboe@kernel.dk>2022-12-05 13:45:05 -0700
commite3031d4c7d2c5bff6b5944d61d4e31319739d216 (patch)
treea00db9628c562714e147557e81b286396eccbf72 /block
parent009df341714c6c20a44dd9268681a8bff10bb050 (diff)
downloadlinux-e3031d4c7d2c5bff6b5944d61d4e31319739d216.tar.gz
blk-throttle: remove incorrect comment for tg_last_low_overflow_time
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. Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Kemeng Shi <shikemeng@huawei.com> Link: https://lore.kernel.org/r/20221205115709.251489-8-shikemeng@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-throttle.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 7db8592dae38..e6a087de414d 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1762,7 +1762,6 @@ 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;