From 6d04399040ca9058c12c766bbbefbf6acdb2eabe Mon Sep 17 00:00:00 2001
From: Hugh Dickins <hughd@google.com>
Date: Fri, 22 Feb 2013 16:35:50 -0800
Subject: [PATCH] memcg: stop warning on memcg_propagate_kmem
Whilst I run the risk of a flogging for disloyalty to the Lord of Sealand,
I do have CONFIG_MEMCG=y CONFIG_MEMCG_KMEM not set, and grow tired of the
"mm/memcontrol.c:4972:12: warning: `memcg_propagate_kmem' defined but not
used [-Wunused-function]" seen in 3.8-rc: move the #ifdef outwards.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: Glauber Costa <glommer@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
mm/memcontrol.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d4f0a831c9e6..53b8201b31eb 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5025,6 +5025,7 @@ static int memcg_update_kmem_limit(struct cgroup *cont, u64 val)
return ret;
}
+#ifdef CONFIG_MEMCG_KMEM
static int memcg_propagate_kmem(struct mem_cgroup *memcg)
{
int ret = 0;
@@ -5033,7 +5034,6 @@ static int memcg_propagate_kmem(struct mem_cgroup *memcg)
goto out;
memcg->kmem_account_flags = parent->kmem_account_flags;
-#ifdef CONFIG_MEMCG_KMEM
/*
* When that happen, we need to disable the static branch only on those
* memcgs that enabled it. To achieve this, we would be forced to
@@ -5059,10 +5059,10 @@ static int memcg_propagate_kmem(struct mem_cgroup *memcg)
mutex_lock(&set_limit_mutex);
ret = memcg_update_cache_sizes(memcg);
mutex_unlock(&set_limit_mutex);
-#endif
out:
return ret;
}
+#endif /* CONFIG_MEMCG_KMEM */
/*
* The user of this function is...
--
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