From nobody Thu Oct 2 23:51:46 2025 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [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 0DE5330B531; Wed, 10 Sep 2025 06:40:36 +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=1757486439; cv=none; b=NgApi8e6yy8JTTQkvLCvt+470JsN45DW8EA3gs2c0dnyoabb3/suyNR+UfS12sdinPZJ4B2IJzNu90Hd417nci0MOIsTjCRwtMC59RrvjaS2G1nyy2gL4+if5sObFRu4Ipj1zJL7+b9+9gtRJsZArAxqCUL1HaeM/k24BneuRww= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757486439; c=relaxed/simple; bh=z1i2TRQXlK0gWc7ocB0BDkCxyvI7Z9bKotJ2akLtH8o=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=bx3aLWgoeRnxqGz33hCg7kvDV1cn2Ry9sGgFLQ6vlGySEXiWeGMjgCTSnxkA2lOIgSQu/tKuge29qGSXQsUdybU67ssH2KkCcdIwPUsMy09FimnMwuq1RfSzZDsFlNL6SGN29QhGS42gLOwhiQLV5ApV93PzIbgqY1byRQwNNIM= 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 [172.19.163.216]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTPS id 4cMB0233cnzYQvR0; Wed, 10 Sep 2025 14:40:34 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id E696D1A14B8; Wed, 10 Sep 2025 14:40:32 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgB3wY1UHcFo3ZIJCA--.51912S16; Wed, 10 Sep 2025 14:40:32 +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 12/16] md/md-linear: convert to use bio_submit_split_bioset() Date: Wed, 10 Sep 2025 14:30:52 +0800 Message-Id: <20250910063056.4159857-13-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--.51912S16 X-Coremail-Antispam: 1UD129KBjvdXoWrur1xWrWxtF13tF4kGFW7Arb_yoWkurX_Wa 4S9FykWr1UK397Kr1Yqan0v39Yvrn8Wry8uFyaqa1fA3ZxJwn7Arn5Xw43X34xXFWIqa45 tr47GryftF1UJjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbgxYFVCjjxCrM7AC8VAFwI0_Wr0E3s1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l82xGYIkIc2x26280x7IE14v26r126s 0DM28IrcIa0xkI8VCY1x0267AKxVW5JVCq3wA2ocxC64kIII0Yj41l84x0c7CEw4AK67xG Y2AK021l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14 v26r4UJVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAF wI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2 WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkE bVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCY1x0262kKe7 AKxVW8ZVWrXwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02 F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_Wr ylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVW8JVW5JwCI42IY6xIIjxv20xvEc7Cj xVAFwI0_Gr1j6F4UJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI 0_Gr0_Cr1lIxAIcVC2z280aVCY1x0267AKxVW8Jr0_Cr1UYxBIdaVFxhVjvjDU0xZFpf9x 07jIPfQUUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ Content-Type: text/plain; charset="utf-8" From: Yu Kuai Unify bio split code, prepare to fix reordered split IO. Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig --- drivers/md/md-linear.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/md/md-linear.c b/drivers/md/md-linear.c index 59d7963c7843..76f85cc32942 100644 --- a/drivers/md/md-linear.c +++ b/drivers/md/md-linear.c @@ -256,19 +256,10 @@ static bool linear_make_request(struct mddev *mddev, = struct bio *bio) =20 if (unlikely(bio_end_sector(bio) > end_sector)) { /* This bio crosses a device boundary, so we have to split it */ - struct bio *split =3D bio_split(bio, end_sector - bio_sector, - GFP_NOIO, &mddev->bio_set); - - if (IS_ERR(split)) { - bio->bi_status =3D errno_to_blk_status(PTR_ERR(split)); - bio_endio(bio); + bio =3D bio_submit_split_bioset(bio, end_sector - bio_sector, + &mddev->bio_set); + if (!bio) return true; - } - - bio_chain(split, bio); - trace_block_split(split, bio->bi_iter.bi_sector); - submit_bio_noacct(bio); - bio =3D split; } =20 md_account_bio(mddev, &bio); --=20 2.39.2