From patchwork Tue Mar 5 07:22:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai X-Patchwork-Id: 13581760 Received: from dggsgout11.his.huawei.com (unknown [45.249.212.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D27C77E0E8; Tue, 5 Mar 2024 07:29:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709623773; cv=none; b=jtv5yUC7rxZ2MQDzy1TxyqQwLIK80qcXf84hzlvYxnT7e5Wky71npuN1toEYLFRIdXPK+o/6R+bxWuGUWPHdOqGY8+vDC7+6iLVDNBxN1I9PlFJGD4zyFDP2sfqoQaDSGzEDsEoxbbLVTU/pWVMD3IgEelIiWeYfhibQDkyUGSw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709623773; c=relaxed/simple; bh=ojoWb/Jkc5XMZZ+TuEOXOAjzQPzYFCm5VsSiYRYXWDE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=SREdcTVKV33f5LHSMk3Hg4rKPLZR0YeuM778R/EefDX+iepLllGpacJMG+4vEh/jtP2DfrUOZEm1kARNFQardbtSLEoU6nN5ePawL4Bk+uXx7F6UzI6jA8xk3bO4vGfTm0f+TggFuH8zUUjk5AyYANWPUO1+GGwSahwmbM62N+o= ARC-Authentication-Results: i=1; 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 [172.19.93.142]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4TpnHy2BjWz4f3lgB; Tue, 5 Mar 2024 15:29:18 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id C2E661A016E; Tue, 5 Mar 2024 15:29:25 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP1 (Coremail) with SMTP id cCh0CgBHGBHRyeZlGnf+Fw--.17927S4; Tue, 05 Mar 2024 15:29:23 +0800 (CST) From: Yu Kuai To: xni@redhat.com, zkabelac@redhat.com, agk@redhat.com, snitzer@kernel.org, mpatocka@redhat.com, dm-devel@lists.linux.dev, song@kernel.org, yukuai3@huawei.com, heinzm@redhat.com, jbrassow@redhat.com, neilb@suse.de Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [PATCH md-6.8 v2 0/9] dm-raid, md/raid: fix v6.7 regressions part2 Date: Tue, 5 Mar 2024 15:22:57 +0800 Message-Id: <20240305072306.2562024-1-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: cCh0CgBHGBHRyeZlGnf+Fw--.17927S4 X-Coremail-Antispam: 1UD129KBjvJXoW7try8GFy8Zry5Xr1rCFyDZFb_yoW8WFW7pa y3CF13Zw4kAr13ursxW3Wjga4rta1rJrWDJ3sxGw4rZr1UZr1Ikw17tF15WF98ZFyfXr4D JF4ay3WUGF1jqrJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUvY14x267AKxVW5JVWrJwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26F1j6w1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4 xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a6rW5 MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I 0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWrZr1j6s0DMIIF0xvEx4A2jsIE14v2 6r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0J UQvtAUUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ From: Yu Kuai Changes in v2: - Change the title from '-next' to 'md-6.8'; - Add Acked-by tag from Mike; - Add Singed-off-by tag from Xiao; link to part1: https://lore.kernel.org/all/CAPhsuW7u1UKHCDOBDhD7DzOVtkGemDz_QnJ4DUq_kSN-Q3G66Q@mail.gmail.com/ part1 contains fixes for deadlocks for stopping sync_thread This set contains fixes: - reshape can start unexpected, cause data corruption, patch 1,5,6; - deadlocks that reshape concurrent with IO, patch 8; - a lockdep warning, patch 9; I'm running lvm2 tests with following scripts with a few rounds now, for t in `ls test/shell`; do if cat test/shell/$t | grep raid &> /dev/null; then make check T=shell/$t fi done There are no deadlocks now, there are still some fs corruption, however, it's verified there are no new failed tests compared to v6.6. Yu Kuai (9): md: don't clear MD_RECOVERY_FROZEN for new dm-raid until resume md: export helpers to stop sync_thread md: export helper md_is_rdwr() md: add a new helper reshape_interrupted() dm-raid: really frozen sync_thread during suspend md/dm-raid: don't call md_reap_sync_thread() directly dm-raid: add a new helper prepare_suspend() in md_personality dm-raid456, md/raid456: fix a deadlock for dm-raid456 while io concurrent with reshape dm-raid: fix lockdep waring in "pers->hot_add_disk" drivers/md/dm-raid.c | 93 ++++++++++++++++++++++++++++++++++---------- drivers/md/md.c | 73 ++++++++++++++++++++++++++-------- drivers/md/md.h | 38 +++++++++++++++++- drivers/md/raid5.c | 32 ++++++++++++++- 4 files changed, 196 insertions(+), 40 deletions(-)