linux-kernel - [PATCH] mm/memcontrol: fix defined but not used compiler warning

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Message-ID: <20141202110752.GA11327@powerline.azcom-win.it>
Date:	Tue, 2 Dec 2014 12:07:52 +0100
From:	Michele Curti <michele.curti@...il.com>
To:	hannes@...xchg.org, mhocko@...e.cz
Cc:	cgroups@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mm/memcontrol: fix defined but not used compiler warning

test_mem_cgroup_node_reclaimable is used only when MAX_NUMNODES > 1,
so move it into the compiler if statement

Signed-off-by: Michele Curti <michele.curti@...il.com>
---
 mm/memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c6ac50e..84531a9 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1615,6 +1615,7 @@ static void mem_cgroup_out_of_memory(struct mem_cgroup *memcg, gfp_t gfp_mask,
 	oom_kill_process(chosen, gfp_mask, order, points, totalpages, memcg,
 			 NULL, "Memory cgroup out of memory");
 }
+#if MAX_NUMNODES > 1
 
 /**
  * test_mem_cgroup_node_reclaimable
@@ -1638,7 +1639,6 @@ static bool test_mem_cgroup_node_reclaimable(struct mem_cgroup *memcg,
 	return false;
 
 }
-#if MAX_NUMNODES > 1
 
 /*
  * Always updating the nodemask is not very good - even if we have an empty
-- 
2.1.3

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