From patchwork Tue Sep 20 02:51:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liu Shixin X-Patchwork-Id: 12981224 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 5EE01C6FA8B for ; Tue, 20 Sep 2022 02:17:55 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C0F30940009; Mon, 19 Sep 2022 22:17:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B97C5940007; Mon, 19 Sep 2022 22:17:54 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A5FD6940009; Mon, 19 Sep 2022 22:17:54 -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 96B89940007 for ; Mon, 19 Sep 2022 22:17:54 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 6A7AAA0722 for ; Tue, 20 Sep 2022 02:17:54 +0000 (UTC) X-FDA: 79930853268.20.AA82772 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf22.hostedemail.com (Postfix) with ESMTP id 3649CC0009 for ; Tue, 20 Sep 2022 02:17:52 +0000 (UTC) Received: from dggpemm500024.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4MWlTM4cFYzlW1T; Tue, 20 Sep 2022 10:13:43 +0800 (CST) Received: from dggpemm100009.china.huawei.com (7.185.36.113) by dggpemm500024.china.huawei.com (7.185.36.203) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 20 Sep 2022 10:17:49 +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; Tue, 20 Sep 2022 10:17:48 +0800 From: Liu Shixin To: Andrew Morton , Zefan Li , Waiman Long , "Christoph Lameter" CC: , Liu Shixin , Kefeng Wang Subject: [PATCH v2 1/9] cgroup/cpuset: use hotplug_memory_notifier() directly Date: Tue, 20 Sep 2022 10:51:15 +0800 Message-ID: <20220920025123.2868953-2-liushixin2@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220920025123.2868953-1-liushixin2@huawei.com> References: <20220920025123.2868953-1-liushixin2@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.113.32] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) 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=1663640272; 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=1xzzJopCkt+8e8eJWx/doMCFemTlcyOn28Qv0Ly46dByEYwHsdDfd0seAG+bJbnoRCi2QQ ox6bdpwAjjgE/f3Otg0m5cs4Q/jFej6U2HEt5sBgUBlZBL58XiclpTtF8YrGA4qTFT0IMd 73S+oCkAZITp8EV1yMvZOTXMeU4e63w= ARC-Authentication-Results: i=1; imf22.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf22.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=1663640272; a=rsa-sha256; cv=none; b=1V2yYL9uLI1o2/X70cTZPiu+0cCvt/dFjsg/xZyHdNeg1kZFgbIAbhOgi9n11xQK05v1Ex GI/VHwQ5KZsU0wLbX+ij1YeQ7jCNe7YZWOKjbu9UfgRJJvJyCx1zq1V62C/RCX5wWs6sea INRQA8dPe9fSN7tYec6Cmov+mA97aNM= X-Stat-Signature: eh34pf1qu5oi3r5b1gn76ewzoo8aq15w X-Rspamd-Queue-Id: 3649CC0009 Authentication-Results: imf22.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=huawei.com; spf=pass (imf22.hostedemail.com: domain of liushixin2@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=liushixin2@huawei.com X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1663640272-330925 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 Reviewed-by: David Hildenbrand --- 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);