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From: Richard Cochran <rcochran@linutronix.de>
To: linux-kernel@vger.kernel.org
Cc: rt@linutronix.de, Johannes Weiner <hannes@cmpxchg.org>,
	Michal Hocko <mhocko@kernel.org>,
	Vladimir Davydov <vdavydov@virtuozzo.com>,
	cgroups@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 1/5] mm: memcontrol: Remove redundant hot plug notifier test.
Date: Fri, 18 Mar 2016 22:26:07 +0100	[thread overview]
Message-ID: <1458336371-17748-1-git-send-email-rcochran@linutronix.de> (raw)

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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             reply	other threads:[~2016-03-18 21:26 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-18 21:26 Richard Cochran [this message]
2016-03-21  8:17 ` [PATCH 1/5] mm: memcontrol: Remove redundant hot plug notifier test Michal Hocko

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