From: Christoph Hellwig <hch@lst.de>
Date: Wed, 20 Apr 2022 06:27:13 +0200
Subject: [PATCH] blk-cgroup: move blk_cgroup_congested out line
Git-commit: 216889aad362b5b7e998a5371348b5e95d485dd1
Patch-mainline: v5.19-rc1
References: jsc#PED-1183

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>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 block/blk-cgroup.c         | 20 ++++++++++++++++++++
 include/linux/blk-cgroup.h | 20 +-------------------
 2 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 8dfe62786cd5..97266ebde975 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -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",
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 7a2f7de30173..988965c1c27b 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -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
-- 
2.35.3