From d200ca143ac6d0b4391b4e811e67e1a36461d501 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 20 Apr 2022 06:27:21 +0200 Subject: blk-cgroup: cleanup blk_cgroup_congested Use blkcg_css instead of open coding it, and switch to a slightly more natural for loop. Signed-off-by: Christoph Hellwig Acked-by: Tejun Heo Link: https://lore.kernel.org/r/20220420042723.1010598-14-hch@lst.de Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'block') diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 8da00ddc1766..5684a8ce1f75 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -2038,15 +2038,11 @@ bool blk_cgroup_congested(void) bool ret = false; rcu_read_lock(); - css = kthread_blkcg(); - if (!css) - css = task_css(current, io_cgrp_id); - while (css) { + for (css = blkcg_css(); css; css = css->parent) { if (atomic_read(&css->cgroup->congestion_count)) { ret = true; break; } - css = css->parent; } rcu_read_unlock(); return ret; -- cgit v1.2.3