From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754067AbcKZXS2 (ORCPT ); Sat, 26 Nov 2016 18:18:28 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:43483 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753188AbcKZXOU (ORCPT ); Sat, 26 Nov 2016 18:14:20 -0500 From: Sebastian Andrzej Siewior To: linux-kernel@vger.kernel.org Cc: rt@linutronix.de, tglx@linutronix.de, Sebastian Andrzej Siewior , Andrew Morton , Vlastimil Babka , Mel Gorman , Johannes Weiner , linux-mm@kvack.org Subject: [PATCH 07/22] mm/vmstat: Drop get_online_cpus() from init_cpu_node_state/vmstat_cpu_dead() Date: Sun, 27 Nov 2016 00:13:35 +0100 Message-Id: <20161126231350.10321-8-bigeasy@linutronix.de> X-Mailer: git-send-email 2.10.2 In-Reply-To: <20161126231350.10321-1-bigeasy@linutronix.de> References: <20161126231350.10321-1-bigeasy@linutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Both functions are called with protection against cpu hotplug already so *_online_cpus() could be dropped. Cc: Andrew Morton Cc: Vlastimil Babka Cc: Mel Gorman Cc: Johannes Weiner Cc: linux-mm@kvack.org Signed-off-by: Sebastian Andrzej Siewior --- mm/vmstat.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/mm/vmstat.c b/mm/vmstat.c index 604f26a4f696..0b63ffb5c407 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1722,24 +1722,19 @@ static void __init init_cpu_node_state(void) { int cpu; =20 - get_online_cpus(); for_each_online_cpu(cpu) node_set_state(cpu_to_node(cpu), N_CPU); - put_online_cpus(); } =20 static void vmstat_cpu_dead(int node) { int cpu; =20 - get_online_cpus(); for_each_online_cpu(cpu) if (cpu_to_node(cpu) =3D=3D node) - goto end; + return; =20 node_clear_state(node, N_CPU); -end: - put_online_cpus(); } =20 /* --=20 2.10.2