linux-kernel - [PATCH 04/13] cgroup: export following two interfaces

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Message-Id: <20220110091046.17010-5-jianchao.wan9@gmail.com>
Date:   Mon, 10 Jan 2022 17:10:37 +0800
From:   Wang Jianchao <jianchao.wan9@...il.com>
To:     axboe@...nel.dk
Cc:     jbacik@...com, tj@...nel.org, bvanassche@....org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 04/13] cgroup: export following two interfaces

From: Wang Jianchao <wangjianchao@...ishou.com>

This is a preparation for making blk-rq-qos modular, there is no
functional change, but just export interfaces pr_cont_cgroup_path
and cgroup_parse_float.

Signed-off-by: Wang Jianchao <wangjianchao@...ishou.com>
---
 include/linux/cgroup.h | 5 +----
 kernel/cgroup/cgroup.c | 7 +++++++
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 75c151413fda..1a67b0db00db 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -666,10 +666,7 @@ static inline void pr_cont_cgroup_name(struct cgroup *cgrp)
 	pr_cont_kernfs_name(cgrp->kn);
 }
 
-static inline void pr_cont_cgroup_path(struct cgroup *cgrp)
-{
-	pr_cont_kernfs_path(cgrp->kn);
-}
+void pr_cont_cgroup_path(struct cgroup *cgrp);
 
 static inline struct psi_group *cgroup_psi(struct cgroup *cgrp)
 {
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 919194de39c8..f358d5122033 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -6597,6 +6597,13 @@ int cgroup_parse_float(const char *input, unsigned dec_shift, s64 *v)
 	*v = whole * power_of_ten(dec_shift) + frac;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(cgroup_parse_float);
+
+void pr_cont_cgroup_path(struct cgroup *cgrp)
+{
+	pr_cont_kernfs_path(cgrp->kn);
+}
+EXPORT_SYMBOL_GPL(pr_cont_cgroup_path);
 
 /*
  * sock->sk_cgrp_data handling.  For more info, see sock_cgroup_data
-- 
2.17.1