linux-kernel - [RFC PATCH] rcuperf: mem

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Date:   Mon, 27 Jan 2020 16:51:12 +0800
From:   kbuild test robot <lkp@...el.com>
To:     "Joel Fernandes (Google)" <joel@...lfernandes.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        "Joel Fernandes (Google)" <joel@...lfernandes.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        Josh Triplett <josh@...htriplett.org>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        "Paul E. McKenney" <paulmck@...nel.org>, rcu@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>, urezki@...il.com
Subject: [RFC PATCH] rcuperf: mem_begin can be static


Fixes: e4b6bfefb245 ("rcuperf: Measure memory footprint during kfree_rcu() test (v4)")
Signed-off-by: kbuild test robot <lkp@...el.com>
---
 rcuperf.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/rcuperf.c b/kernel/rcu/rcuperf.c
index c41f009acbbb5..4f642e7b25fa6 100644
--- a/kernel/rcu/rcuperf.c
+++ b/kernel/rcu/rcuperf.c
@@ -617,7 +617,7 @@ DEFINE_KFREE_OBJ(32); // goes on kmalloc-64 slab
 DEFINE_KFREE_OBJ(64); // goes on kmalloc-96 slab
 DEFINE_KFREE_OBJ(96); // goes on kmalloc-128 slab
 
-long long mem_begin;
+static long long mem_begin;
 
 static int
 kfree_perf_thread(void *arg)