diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-04-20 06:27:21 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-05-02 14:06:20 -0600 |
| commit | d200ca143ac6d0b4391b4e811e67e1a36461d501 (patch) | |
| tree | c20b3f366795081dbf51c8780f4ed88c33ead78d /block | |
| parent | bc5fee91f26d8d1428fb744e5ad04b1417a85197 (diff) | |
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 <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20220420042723.1010598-14-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-cgroup.c | 6 |
1 files changed, 1 insertions, 5 deletions
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; |