From nobody Thu Oct 2 23:51:46 2025 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (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 37CC7309EEB; Wed, 10 Sep 2025 06:40:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757486434; cv=none; b=J8ZNIYTap//LMCmoYF6zuBoNm8YZSRWUwZtn7DWyHmW35BsIpUwMzbpfbp422fGTR8nZfoBM/Y4FElM6zMNS/0mgXbPCfbsTDNI7P0Axnjz3gyiaba4dmWHXZqIlwoC7dNTQIoJ3RwCh/B27dRQrPjqK9pnXoCgmStorft5mJq4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757486434; c=relaxed/simple; bh=vnS0TNqb6L6MeFXaHVLwSc0rVZs/LyWCCkmhdzWVAnA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=C9ezvJl4aU+6FO/RpeOX16szIvf5oSXJtdg3uwWf2Brpak3FdrJc+C2b+SMi+fvNgpzMz3JJaKCVP0MQo0MRoyDf+QUVgoBM1D4314Iovd9mMOigtLzeIaG+5OAOIF/mAyYtjb5MdUt/INEF2maotm7JbbXepbOpGbNBsHfjHk0= 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=45.249.212.56 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 dggsgout12.his.huawei.com (SkyGuard) with ESMTPS id 4cM9zy1hxzzKHN4T; Wed, 10 Sep 2025 14:40:30 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 6ECF81A0838; Wed, 10 Sep 2025 14:40:30 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgB3wY1UHcFo3ZIJCA--.51912S13; Wed, 10 Sep 2025 14:40:30 +0800 (CST) From: Yu Kuai To: axboe@kernel.dk, hch@infradead.org, colyli@kernel.org, hare@suse.de, dlemoal@kernel.org, tieren@fnnas.com, bvanassche@acm.org, tj@kernel.org, josef@toxicpanda.com, song@kernel.org, satyat@google.com, ebiggers@google.com, kmo@daterainc.com, neil@brown.name, akpm@linux-foundation.org Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-raid@vger.kernel.org, yukuai3@huawei.com, yi.zhang@huawei.com, yangerkun@huawei.com, johnny.chenyi@huawei.com Subject: [PATCH v2 for-6.18/block 09/16] md/raid10: add a new r10bio flag R10BIO_Returned Date: Wed, 10 Sep 2025 14:30:49 +0800 Message-Id: <20250910063056.4159857-10-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250910063056.4159857-1-yukuai1@huaweicloud.com> References: <20250910063056.4159857-1-yukuai1@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: gCh0CgB3wY1UHcFo3ZIJCA--.51912S13 X-Coremail-Antispam: 1UD129KBjvJXoW7Ww43uF47XFWUGw1DWry3Arb_yoW8WrW8p3 9xWry3Z3yjkF47Zw1DXw4UAasYy3W7K3yYka4vk3yrZFy3XFZ0kF18JayUXrWDXFWS9a47 XF1jyrZrCF45tFJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPvb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUAV Cq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0 rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x0267 AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E 14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7 xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Y z7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc7CjxVAaw2 AFwI0_GFv_Wryl42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAq x4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a6r W5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF 7I0E14v26r4UJVWxJr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14 v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr1j6F4UJbIYCTnIWIevJa73UjIFyTuY vjxUI-eODUUUU X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ Content-Type: text/plain; charset="utf-8" From: Yu Kuai The new helper bio_submit_split_bioset() can failed the orginal bio on split errors, prepare to handle this case in raid_end_bio_io(). The flag name is refer to the r1bio flag name. Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig --- drivers/md/raid10.c | 8 +++++--- drivers/md/raid10.h | 2 ++ 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 3d7b24d6b4eb..cac5c6df75bb 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -322,10 +322,12 @@ static void raid_end_bio_io(struct r10bio *r10_bio) struct bio *bio =3D r10_bio->master_bio; struct r10conf *conf =3D r10_bio->mddev->private; =20 - if (!test_bit(R10BIO_Uptodate, &r10_bio->state)) - bio->bi_status =3D BLK_STS_IOERR; + if (!test_and_set_bit(R10BIO_Returned, &r10_bio->state)) { + if (!test_bit(R10BIO_Uptodate, &r10_bio->state)) + bio->bi_status =3D BLK_STS_IOERR; + bio_endio(bio); + } =20 - bio_endio(bio); /* * Wake up any possible resync thread that waits for the device * to go idle. diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index 3f16ad6904a9..da00a55f7a55 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -165,6 +165,8 @@ enum r10bio_state { * so that raid10d knows what to do with them. */ R10BIO_ReadError, +/* For bio_split errors, record that bi_end_io was called. */ + R10BIO_Returned, /* If a write for this request means we can clear some * known-bad-block records, we set this flag. */ --=20 2.39.2