linux-kernel - [PATCH -next] cgroup: Make cgroup

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Date:   Tue, 17 May 2022 19:25:23 +0800
From:   Xiu Jianfeng <xiujianfeng@...wei.com>
To:     <tj@...nel.org>, <lizefan.x@...edance.com>, <hannes@...xchg.org>
CC:     <cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] cgroup: Make cgroup_debug static

Make cgroup_debug static since it's only used in cgroup.c

Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 kernel/cgroup/cgroup-internal.h | 1 -
 kernel/cgroup/cgroup.c          | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h
index 6e36e854b512..5da09c74228d 100644
--- a/kernel/cgroup/cgroup-internal.h
+++ b/kernel/cgroup/cgroup-internal.h
@@ -12,7 +12,6 @@
 #define TRACE_CGROUP_PATH_LEN 1024
 extern spinlock_t trace_cgroup_path_lock;
 extern char trace_cgroup_path[TRACE_CGROUP_PATH_LEN];
-extern bool cgroup_debug;
 extern void __init enable_debug_cgroup(void);
 
 /*
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index adb820e98f24..a97fd051430b 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -96,7 +96,7 @@ EXPORT_SYMBOL_GPL(css_set_lock);
 
 DEFINE_SPINLOCK(trace_cgroup_path_lock);
 char trace_cgroup_path[TRACE_CGROUP_PATH_LEN];
-bool cgroup_debug __read_mostly;
+static bool cgroup_debug __read_mostly;
 
 /*
  * Protects cgroup_idr and css_idr so that IDs can be released without
-- 
2.17.1