From patchwork Tue Apr 4 01:42:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: yebin X-Patchwork-Id: 13199020 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 298F6C76196 for ; Tue, 4 Apr 2023 01:42:43 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 82A966B0074; Mon, 3 Apr 2023 21:42:42 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 813916B0071; Mon, 3 Apr 2023 21:42:42 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6B3FC6B0078; Mon, 3 Apr 2023 21:42:42 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 53C196B0071 for ; Mon, 3 Apr 2023 21:42:42 -0400 (EDT) Received: from smtpin27.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 2B2AF1A050B for ; Tue, 4 Apr 2023 01:42:42 +0000 (UTC) X-FDA: 80642009364.27.AD9122D Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) by imf17.hostedemail.com (Postfix) with ESMTP id 92FAE4000F for ; Tue, 4 Apr 2023 01:42:39 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=none; spf=pass (imf17.hostedemail.com: domain of yebin@huaweicloud.com designates 45.249.212.51 as permitted sender) smtp.mailfrom=yebin@huaweicloud.com; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1680572560; a=rsa-sha256; cv=none; b=f/QX08iBmcpLoU7k7OTAmHKNoYZ3lzRXGfoKZC/zWedAYdQaekDkDBGLB/fXgsSi0FqQqI Hw/i+yC8zelhm8dVQFk+Gq/eb3s6HDekWKfK51UdaRvMOWHCAIjXdjEh/H7DBcunvKLVB5 yye8vELjqG3rvFuwJ1cXK4WlFgqk9vE= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=none; spf=pass (imf17.hostedemail.com: domain of yebin@huaweicloud.com designates 45.249.212.51 as permitted sender) smtp.mailfrom=yebin@huaweicloud.com; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1680572560; 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-transfer-encoding:content-transfer-encoding: in-reply-to:references; bh=+zr8psUVLujdU6FGyo5z+7WvDuxdPOZjRRhv4uBwMUI=; b=UfAl1T90p1jpODlc2/khb0MIcHaSbHKaSBdRNcvW32erNvk2OPeEMMDre/QSTokZ008BOQ S4/GuTebJODtPps0+JNF4ou9nco+K5qmubVqAbPcZ9Z6Brm2b0s0wKepGOVTYqzakWgKCq B0Z4JADIRoSGX/dvOvFhqrmrjBjYxE4= Received: from mail02.huawei.com (unknown [172.30.67.169]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4Pr9Vv3KMVz4f3jHg for ; Tue, 4 Apr 2023 09:42:31 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.127.227]) by APP3 (Coremail) with SMTP id _Ch0CgBH9CGHgCtkmLh6GA--.26422S4; Tue, 04 Apr 2023 09:42:33 +0800 (CST) From: Ye Bin To: dennis@kernel.org, tj@kernel.org, cl@linux.com, linux-mm@kvack.org, yury.norov@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk Cc: linux-kernel@vger.kernel.org, dchinner@redhat.com, yebin10@huawei.com Subject: [PATCH 0/2] fix dying cpu compare race Date: Tue, 4 Apr 2023 09:42:04 +0800 Message-Id: <20230404014206.3752945-1-yebin@huaweicloud.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-CM-TRANSID: _Ch0CgBH9CGHgCtkmLh6GA--.26422S4 X-Coremail-Antispam: 1UD129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UjIYCTnIWjp_UUUY17kC6x804xWl14x267AKxVW8JVW5JwAF c2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII 0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xv wVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4 x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG 64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r 1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628v n2kIc2xKxwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F4 0E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFyl IxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxV AFwI0_Jr0_Gr1lIxAIcVCF04k26cxKx2IYs7xG6rW3Jr0E3s1lIxAIcVC2z280aVAFwI0_ Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnIWIevJa73UjIFyTuYvjxUrR 6zUUUUU X-CM-SenderInfo: p1hex046kxt4xhlfz01xgou0bp/ X-CFilter-Loop: Reflected X-Rspam-User: X-Rspamd-Queue-Id: 92FAE4000F X-Rspamd-Server: rspam01 X-Stat-Signature: nmpagdnrromji3nn4pdcs4ewdi5u3zmm X-HE-Tag: 1680572559-284577 X-HE-Meta: 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 E/Wj1kee TD71q1PKM9cHqUeJGyYVgFInXGGCB4IejEEWpLe/KfarBwbS9rwFjlW8gyMOZlae1J9vVQ+nPte1hZCJsZIdOFFRtXWpQQLHhw5zY5//JVifgRV9ybWN6cGi7iD492CQ7OYVfg/1K7QE3JhmnwWhu3kwHMio2aEuGjgJ3garSa3PmM0Kpc42kL8DZDgNYtZaBkUqhx/61EY+2MMlFK2SQGbGJu6RGB2qXQQ6kM+zsKxcLQ/jwBXF0+AEqyvKbL57ojNqGddT4zH17Tv0= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000976, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Ye Bin Ye Bin (2): cpu/hotplug: introduce 'num_dying_cpus' to get dying CPUs count lib/percpu_counter: fix dying cpu compare race include/linux/cpumask.h | 20 ++++++++++++++++---- kernel/cpu.c | 2 ++ lib/percpu_counter.c | 11 ++++++++++- 3 files changed, 28 insertions(+), 5 deletions(-)