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Subject[PATCH 1/5] mm: memcontrol: Remove redundant hot plug notifier test.
Date
The test for ONLINE is redundant because the following test for !DEAD
already includes the online case. This patch removes the superfluous
code.

Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: cgroups@vger.kernel.org
Cc: linux-mm@kvack.org
Signed-off-by: Richard Cochran <rcochran@linutronix.de>
---
mm/memcontrol.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d06cae2..993a261 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1916,9 +1916,6 @@ static int memcg_cpu_hotplug_callback(struct notifier_block *nb,
int cpu = (unsigned long)hcpu;
struct memcg_stock_pcp *stock;

- if (action == CPU_ONLINE)
- return NOTIFY_OK;
-
if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
return NOTIFY_OK;

--
2.1.4
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