diff options
| author | Xiu Jianfeng <xiujianfeng@huawei.com> | 2024-07-16 13:30:58 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-07-19 09:40:07 -0600 |
| commit | 89ed6c9ac69ec398ccb648f5f675b43e8ca679ca (patch) | |
| tree | 7c7633cf1c53cf4eae053bb8499d7f736571388f /block/blk-cgroup.c | |
| parent | 72d04bdcf3f7d7e07d82f9757946f68802a7270a (diff) | |
blk-cgroup: move congestion_count to struct blkcg
The congestion_count was introduced into the struct cgroup by
commit d09d8df3a294 ("blkcg: add generic throttling mechanism"),
but since it is closely related to the blkio subsys, it is not
appropriate to put it in the struct cgroup, so let's move it to
struct blkcg. There should be no functional changes because blkcg
is per cgroup.
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20240716133058.3491350-1-xiujianfeng@huawei.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 37e6cc91d576..69e70964398c 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -2182,12 +2182,13 @@ void blk_cgroup_bio_start(struct bio *bio) bool blk_cgroup_congested(void) { - struct cgroup_subsys_state *css; + struct blkcg *blkcg; bool ret = false; rcu_read_lock(); - for (css = blkcg_css(); css; css = css->parent) { - if (atomic_read(&css->cgroup->congestion_count)) { + for (blkcg = css_to_blkcg(blkcg_css()); blkcg; + blkcg = blkcg_parent(blkcg)) { + if (atomic_read(&blkcg->congestion_count)) { ret = true; break; } |