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smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.235]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4THCh62z2vz4f3lCp; Sat, 20 Jan 2024 18:41:10 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id 97CD61A0B3B; Sat, 20 Jan 2024 18:41:16 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP1 (Coremail) with SMTP id cCh0CgAn+RFKo6tlY4mmBQ--.38494S4; Sat, 20 Jan 2024 18:41:16 +0800 (CST) From: Yu Kuai To: mpatocka@redhat.com, dm-devel@lists.linux.dev, msnitzer@redhat.com, heinzm@redhat.com, song@kernel.org, yukuai3@huawei.com Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [PATCH 0/5] md: fix/prevent dm-raid regressions Date: Sat, 20 Jan 2024 18:37:29 +0800 Message-Id: <20240120103734.4155446-1-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: cCh0CgAn+RFKo6tlY4mmBQ--.38494S4 X-Coremail-Antispam: 1UD129KBjvdXoWruFW8Cry7KF4rCrWrJw4kCrg_yoWDWFbEka yI9F97Gr1Uu3Z3WayUur4SyryUCFZrWayUXFWDKrW0qry7X34fuF4Dtr4F9ry7ZFWDKF1k Cry8Z3yFv3sFvjkaLaAFLSUrUUUUUb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbx8FF20E14v26r4j6ryUM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s 1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0 cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8Jw ACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2Y2ka 0xkIwI1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67 AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIY rxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14 v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWrZr1j6s0DMIIF0xvEx4A2jsIE14v26r1j 6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUdHU DUUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1788605775199064923 X-GMAIL-MSGID: 1788605775199064923 From: Yu Kuai There are some problems that we fixed in md/raid, and some apis is changed. However, dm-raid rely the old apis(noted that old apis is problematic in corner cases), and now there are regressions in lvm2 testsuite. This patchset fix some regressions(patch 1-3), and revert changes to prevent regressions(patch 4,5). Noted that the problems in patch 4,5 is not clear yet, and I'm not able to locate the root cause ASAP, hence I decide to revert changes to prevent regressions first. Yu Kuai (5): md: don't ignore suspended array in md_check_recovery() md: don't ignore read-only array in md_check_recovery() md: make sure md_do_sync() will set MD_RECOVERY_DONE md: revert commit fa2bbff7b0b4 ("md: synchronize flush io with array reconfiguration") for dm-raid md: use md_reap_sync_thread() directly for dm-raid drivers/md/md.c | 58 ++++++++++++++++++++++++++++++------------------- 1 file changed, 36 insertions(+), 22 deletions(-)