diff mbox series

[v2,1/3] block: Remove redundant parent blkcg_gp check in check_scale_change

Message ID 20221018111240.22612-2-shikemeng@huawei.com (mailing list archive)
State New, archived
Headers show
Series A few cleanup patches for blk-iolatency.c | expand

Commit Message

Kemeng Shi Oct. 18, 2022, 11:12 a.m. UTC 
Function blkcg_iolatency_throttle will make sure blkg->parent is not
NULL before calls check_scale_change. And function check_scale_change
is only called in blkcg_iolatency_throttle.

Signed-off-by: Kemeng Shi <shikemeng@huawei.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
---
 block/blk-iolatency.c | 3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index 571fa95aafe9..b24d7b788ba3 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -403,9 +403,6 @@  static void check_scale_change(struct iolatency_grp *iolat)
 	u64 scale_lat;
 	int direction = 0;
 
-	if (lat_to_blkg(iolat)->parent == NULL)
-		return;
-
 	parent = blkg_to_lat(lat_to_blkg(iolat)->parent);
 	if (!parent)
 		return;