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blk-cgroup: move blk_cgroup_congested out line

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There is no urgent need to inline this function, so move it out of line.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20220420042723.1010598-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2022-04-20 06:27:13 +02:00 committed by Jens Axboe
parent db05628435
commit 216889aad3
2 changed files with 21 additions and 19 deletions
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20
block/blk-cgroup.c
View File

@ -1950,6 +1950,26 @@ void blk_cgroup_bio_start(struct bio *bio)
put_cpu();
}
bool blk_cgroup_congested(void)
{
struct cgroup_subsys_state *css;
bool ret = false;
rcu_read_lock();
css = kthread_blkcg();
if (!css)
css = task_css(current, io_cgrp_id);
while (css) {
if (atomic_read(&css->cgroup->congestion_count)) {
ret = true;
break;
}
css = css->parent;
}
rcu_read_unlock();
return ret;
}
static int __init blkcg_init(void)
{
blkcg_punt_bio_wq = alloc_workqueue("blkcg_punt_bio",

20
include/linux/blk-cgroup.h
View File

@ -135,25 +135,7 @@ static inline struct blkcg *bio_blkcg(struct bio *bio)
return NULL;
}
static inline bool blk_cgroup_congested(void)
{
struct cgroup_subsys_state *css;
bool ret = false;
rcu_read_lock();
css = kthread_blkcg();
if (!css)
css = task_css(current, io_cgrp_id);
while (css) {
if (atomic_read(&css->cgroup->congestion_count)) {
ret = true;
break;
}
css = css->parent;
}
rcu_read_unlock();
return ret;
}
bool blk_cgroup_congested(void);
/**
* blkcg_parent - get the parent of a blkcg