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[2620:137:e000::1:20]) by mx.google.com with ESMTP id r10-20020a05640251ca00b00461f44d7bfcsi9167401edd.573.2022.12.26.02.57.27; Mon, 26 Dec 2022 02:57:51 -0800 (PST) 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 S231846AbiLZKdY (ORCPT + 99 others); Mon, 26 Dec 2022 05:33:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229447AbiLZKdW (ORCPT ); Mon, 26 Dec 2022 05:33:22 -0500 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 595E2615F for ; Mon, 26 Dec 2022 02:33:21 -0800 (PST) Received: from mail02.huawei.com (unknown [172.30.67.153]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4NgYyz6349z4f3nV8 for ; Mon, 26 Dec 2022 18:33:15 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.124.27]) by APP4 (Coremail) with SMTP id gCh0CgBH_rFreKlj6SMxAg--.54373S4; Mon, 26 Dec 2022 18:33:17 +0800 (CST) From: Hou Tao To: linux-cachefs@redhat.com Cc: David Howells , Jeff Layton , linux-erofs@lists.ozlabs.org, linux-kernel@vger.kernel.org, Jingbo Xu , houtao1@huawei.com Subject: [PATCH v2 0/2] Fixes for fscache volume operations Date: Mon, 26 Dec 2022 18:33:07 +0800 Message-Id: <20221226103309.953112-1-houtao@huaweicloud.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CM-TRANSID: gCh0CgBH_rFreKlj6SMxAg--.54373S4 X-Coremail-Antispam: 1UD129KBjvdXoW7Xry7Zr1fWF1DKFW7GF17Jrb_yoWDWwc_W3 4xGas8ur40qa4DKa15KFnIgrZ3uw4jga18JFyUtF17GryY9rn09r1ktr9avF12g34UZF15 Ar1kAFWrJr129jkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbokYFVCjjxCrM7AC8VAFwI0_Gr0_Xr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I 0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40E x7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Y z7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zV AF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4l IxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWrZr1j6s 0DMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Jr0_GrUvcSsG vfC2KfnxnUUI43ZEXa7IU1zuWJUUUUU== X-CM-SenderInfo: xkrx3t3r6k3tpzhluzxrxghudrp/ X-CFilter-Loop: Reflected X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS autolearn=ham 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 X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1753273882999961522?= X-GMAIL-MSGID: =?utf-8?q?1753273882999961522?= From: Hou Tao Hi, The patchset includes two fixes for fscache volume operations: patch 1 fixes the hang problem during volume acquisition when the volume acquisition process waits for the freeing of relinquished volume, patch 2 adds the missing memory barrier in fscache_create_volume_work() and it is spotted through code review when checking whether or not these is missing smp_mb() before invoking wake_up_bit(). Comments are always welcome. Chang Log: v2: * rebased on v6.1-rc1 * Patch 1: use wait_on_bit() instead (Suggested by David) * Patch 2: add the missing smp_mb() in fscache_create_volume_work() v1: https://listman.redhat.com/archives/linux-cachefs/2022-December/007384.html Hou Tao (2): fscache: Use wait_on_bit() to wait for the freeing of relinquished volume fscache: Add the missing smp_mb__after_atomic() before wake_up_bit() fs/fscache/volume.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-)