Received: by 2002:a05:6358:701b:b0:131:369:b2a3 with SMTP id 27csp2626258rwo; Sun, 23 Jul 2023 20:50:44 -0700 (PDT) X-Google-Smtp-Source: APBJJlFhjbmI9rVb7sFy35Y1ugSIdOKna3Ggz1EMmGZv3NXuWYNWICJ52iOBjcS2lQD+0YZHl8hK X-Received: by 2002:a17:906:5a6f:b0:970:c9f:2db6 with SMTP id my47-20020a1709065a6f00b009700c9f2db6mr8385749ejc.63.1690170644705; Sun, 23 Jul 2023 20:50:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690170644; cv=none; d=google.com; s=arc-20160816; b=Z1YNVCZNhUMWc5Mtk7FkHhv8iI760KBLDbW+9ADFg3csKFEmToYDiaCpnPXIei/rn3 IRgn4d09pqNZZyjCs7WrYzR+kk8KepKJ3vAvmEXFQ6wU4OSl/5Xt+XeoN2zmP5ZJtEOl 3OxOmbA/1XQz3xfwsP2X10hqs1TDGkNe4QXxc1fVi0PhF1TCJgqyggcoznpvTnVHNa4+ jwlXwj6MLNcB0YllbN9x0OUCbiWQRJ3JXuHK7/DkpSD8SRDRwfyJ9rMTsAEJoJO1gPef ErmLzEb2cCgbhbn+eSNcRwPNdX1gJP6iMYxt0/IG797IIcDcQb6CAteXOWU2SNeTMu53 7xKg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=y3uV6ctA0K6D8+HQ4aLbEXCP5xefZHNuZKJDeTFD4mg=; fh=dqyPVSEtrTzyolOhNoD5isrr7S2Tn6sjznP8KmpBFJA=; b=fI91ynhpsS9OjnqZa8eRHiEbTzWS1bT5an4aBjfECsKqGRmWSRRed8czxMPuktC29I 2bAfFQjzAnsPOQV3ZXpwE/TqzTkD2/RwKJ1tleDAslj5WkxaMLhyNrylz2eVGEKyXYdc WvCNUXUMOah9Y7W5Lx9zmtyB77Na5pCav97SgsR8vz68S0sT+ks6OUuhcH/wpYVbMLKv MPFruHPg0n66n5uNPDul715PISmDlkaMC87/aavx+HGCMtzugCHwpCiwykTXHeECPWjh BgdNAwZcPvnOEfhdJf46ebjvrOJrSyTcdxAwrZZmUu2CAkGxQEZAqjouzxDefh9g7sQ5 HA8A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f8-20020a170906084800b00992bfe24e47si5735207ejd.978.2023.07.23.20.50.21; Sun, 23 Jul 2023 20:50:44 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230289AbjGXC2y (ORCPT + 99 others); Sun, 23 Jul 2023 22:28:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229753AbjGXC2u (ORCPT ); Sun, 23 Jul 2023 22:28:50 -0400 Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC232E7; Sun, 23 Jul 2023 19:28:47 -0700 (PDT) Received: from mail02.huawei.com (unknown [172.30.67.143]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4R8PH00XvBz4f3pBd; Mon, 24 Jul 2023 10:28:44 +0800 (CST) Received: from huaweicloud.com (unknown [10.174.178.55]) by APP4 (Coremail) with SMTP id gCh0CgCX_7LY4b1k4_awOg--.28306S4; Mon, 24 Jul 2023 10:28:44 +0800 (CST) From: thunder.leizhen@huaweicloud.com To: "Paul E . McKenney" , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Steven Rostedt , Mathieu Desnoyers , Lai Jiangshan , Zqiang , rcu@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Zhen Lei Subject: [PATCH v2 0/1] rcu: Simplify check_cpu_stall() Date: Mon, 24 Jul 2023 10:26:50 +0800 Message-Id: <20230724022651.899-1-thunder.leizhen@huaweicloud.com> X-Mailer: git-send-email 2.37.3.windows.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: gCh0CgCX_7LY4b1k4_awOg--.28306S4 X-Coremail-Antispam: 1UD129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UjIYCTnIWjp_UUUYc7kC6x804xWl14x267AKxVW8JVW5JwAF c2x0x2IEx4CE42xK8VAvwI8IcIk0rVWUWVWUuwAFIxvE14AKwVWUJVWUGwA2ocxC64kIII 0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xv wVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4 x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG 64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r 1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628v n2kIc2xKxwAKzVCY07xG64k0F24l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr 0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY 17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcV C0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWrJr0_WFyUJwCI 42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWI evJa73UjIFyTuYvjxUFCJmUUUUU X-CM-SenderInfo: hwkx0vthuozvpl2kv046kxt4xhlfz01xgou0bp/ X-CFilter-Loop: Reflected X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,KHOP_HELO_FCRDNS, MAY_BE_FORGED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Zhen Lei v2: Keep the check "READ_ONCE(rcu_state.jiffies_stall) == jn", drop patch 1/2 in v1. v1: Eliminate the duplicated code and comments. Zhen Lei (1): rcu: Simplify check_cpu_stall() kernel/rcu/tree_stall.h | 42 +++++++++++++++-------------------------- 1 file changed, 15 insertions(+), 27 deletions(-) -- 2.25.1