linux-kernel - [PATCH] cgroup/cgroup.c: replace 'of->kn->priv' with of

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Message-ID: <20201106144740.GA9692@rlk>
Date:   Fri, 6 Nov 2020 22:47:40 +0800
From:   Hui Su <sh_def@....com>
To:     tj@...nel.org, lizefan@...wei.com, hannes@...xchg.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     sh_def@....com
Subject: [PATCH] cgroup/cgroup.c: replace 'of->kn->priv' with of_cft()

we have supplied the inline function: of_cft() in cgroup.h.

So replace the direct use 'of->kn->priv' with inline func
of_cft(), which is more readable.

Signed-off-by: Hui Su <sh_def@....com>
---
 kernel/cgroup/cgroup.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index e41c21819ba0..078d7f167890 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -3657,7 +3657,7 @@ static ssize_t cgroup_freeze_write(struct kernfs_open_file *of,
 
 static int cgroup_file_open(struct kernfs_open_file *of)
 {
-	struct cftype *cft = of->kn->priv;
+	struct cftype *cft = of_cft(of);
 
 	if (cft->open)
 		return cft->open(of);
@@ -3666,7 +3666,7 @@ static int cgroup_file_open(struct kernfs_open_file *of)
 
 static void cgroup_file_release(struct kernfs_open_file *of)
 {
-	struct cftype *cft = of->kn->priv;
+	struct cftype *cft = of_cft(of);
 
 	if (cft->release)
 		cft->release(of);
@@ -3677,7 +3677,7 @@ static ssize_t cgroup_file_write(struct kernfs_open_file *of, char *buf,
 {
 	struct cgroup_namespace *ns = current->nsproxy->cgroup_ns;
 	struct cgroup *cgrp = of->kn->parent->priv;
-	struct cftype *cft = of->kn->priv;
+	struct cftype *cft = of_cft(of);
 	struct cgroup_subsys_state *css;
 	int ret;
 
@@ -3727,7 +3727,7 @@ static ssize_t cgroup_file_write(struct kernfs_open_file *of, char *buf,
 
 static __poll_t cgroup_file_poll(struct kernfs_open_file *of, poll_table *pt)
 {
-	struct cftype *cft = of->kn->priv;
+	struct cftype *cft = of_cft(of);
 
 	if (cft->poll)
 		return cft->poll(of, pt);
-- 
2.29.0