From patchwork Thu Sep 22 14:18:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Shixin X-Patchwork-Id: 12985136 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7F4CC54EE9 for ; Thu, 22 Sep 2022 13:45:23 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 84A6D940008; Thu, 22 Sep 2022 09:45:23 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7D0886B0072; Thu, 22 Sep 2022 09:45:23 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 69945940007; Thu, 22 Sep 2022 09:45:23 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 5BBB16B0071 for ; Thu, 22 Sep 2022 09:45:23 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 37687120422 for ; Thu, 22 Sep 2022 13:45:23 +0000 (UTC) X-FDA: 79939843326.09.8D3F694 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf26.hostedemail.com (Postfix) with ESMTP id 7E8F7140024 for ; Thu, 22 Sep 2022 13:45:21 +0000 (UTC) Received: from dggpemm500023.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MYGg85560zpTdC; Thu, 22 Sep 2022 21:42:28 +0800 (CST) Received: from dggpemm100009.china.huawei.com (7.185.36.113) by dggpemm500023.china.huawei.com (7.185.36.83) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 22 Sep 2022 21:45:18 +0800 Received: from huawei.com (10.175.113.32) by dggpemm100009.china.huawei.com (7.185.36.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Thu, 22 Sep 2022 21:45:18 +0800 From: Liu Shixin To: Andrew Morton , David Hildenbrand , Waiman Long , Zefan Li , Christoph Lameter CC: , , Liu Shixin , Kefeng Wang Subject: [PATCH v3 1/8] cgroup/cpuset: use hotplug_memory_notifier() directly Date: Thu, 22 Sep 2022 22:18:57 +0800 Message-ID: <20220922141904.3245505-2-liushixin2@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220922141904.3245505-1-liushixin2@huawei.com> References: <20220922141904.3245505-1-liushixin2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.32] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To dggpemm100009.china.huawei.com (7.185.36.113) X-CFilter-Loop: Reflected ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1663854322; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=JuA04Vvd0Lkomb9eLNv46coLV0RK9pwlvuFPP4WZoGY=; b=540UJZtkRhP7506qWAz7bvfhFiCvp+K2/8Vh8/chndp6DqAtYF80UaMwADpGSBXS/fVpb0 gGZrYD3ducobuRypA8eNoDGDi4uMK4CpArj8nX4A7GP23PdbQgKyQ+QSSvwdy+N3d+K01j LqNUgwveqykuJH9WybOZJut8qQ0Cm94= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf26.hostedemail.com: domain of liushixin2@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=liushixin2@huawei.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1663854322; a=rsa-sha256; cv=none; b=XM0MG9ftGoA+ANSYwaDwTmvKGkzbOdPaVNrAZKWmEiQqaPc9YZhVSQh1+l0ArDxVkY3qOy jt35WEAFfHw48k0pWtBBl5Et35diJMDNvss+T6Bq2Q9RZJSQaAHFeAFnzlm06qYaBUHGEE jVEtAXgqroKyJT5bDBWRuwa0S2JBSqs= X-Rspam-User: X-Stat-Signature: pcfpr7qkkow4kre3abayfrqw3udq7tfz X-Rspamd-Queue-Id: 7E8F7140024 Authentication-Results: imf26.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf26.hostedemail.com: domain of liushixin2@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=liushixin2@huawei.com X-Rspamd-Server: rspam08 X-HE-Tag: 1663854321-590213 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Since patch 316346243be6 has already updated the minimum gcc version to 5.1. The previous problem mentioned in patch f02c69680088 is not existed. So we can now revert to use hotplug_memory_notifier() directly rather than register_hotmemory_notifier(). Signed-off-by: Liu Shixin --- kernel/cgroup/cpuset.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index b474289c15b8..0c6db6a4f427 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -3630,11 +3630,6 @@ static int cpuset_track_online_nodes(struct notifier_block *self, return NOTIFY_OK; } -static struct notifier_block cpuset_track_online_nodes_nb = { - .notifier_call = cpuset_track_online_nodes, - .priority = 10, /* ??! */ -}; - /** * cpuset_init_smp - initialize cpus_allowed * @@ -3652,7 +3647,7 @@ void __init cpuset_init_smp(void) cpumask_copy(top_cpuset.effective_cpus, cpu_active_mask); top_cpuset.effective_mems = node_states[N_MEMORY]; - register_hotmemory_notifier(&cpuset_track_online_nodes_nb); + hotplug_memory_notifier(cpuset_track_online_nodes, 10); cpuset_migrate_mm_wq = alloc_ordered_workqueue("cpuset_migrate_mm", 0); BUG_ON(!cpuset_migrate_mm_wq);