From nobody Mon Nov 25 03:51:45 2024 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 6D696FC0A; Fri, 11 Oct 2024 01:18:31 +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=1728609513; cv=none; b=CP52wwZhFJbzft44geazRJI5pa1OqTj9zBCDI1xdzxxAU0buTN9o305cyPmmHXUDRaUfTaali8yze5Q/2TLfTb9sdzSVdH+w2uWnlQuY0llk5u5UZ2o11LqgFhoO1wmZzMqKRhBmMVoLcOeAOUaUrvj/4wWK6KN+gyQEUE8DL/s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728609513; c=relaxed/simple; bh=jJBUs/Bj7wU8XcO9hUGjCP3aHabh74sFA11gyKy5Nys=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=PRMtcxnsL4xJYexTIxKz+LHhORRoHCsj0ucEH5o/cTwBxcPX7YA8xl+nka6lb4pj6FbkuLu63OOsdaaJb2llGulWj6I+S7fqhtau1SL2ALGr0NbgMjW6Ajv5RVZp8n5vMvlGln25r8CJmAPKa+lfVmHBHgjlNuNOtyWKH6NYHU0= 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 ESMTP id 4XPpfJ4XCSz4f3jkM; Fri, 11 Oct 2024 09:18:16 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 757EE1A092F; Fri, 11 Oct 2024 09:18:28 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgDH+sbefAhnm9MFDw--.55490S9; Fri, 11 Oct 2024 09:18:28 +0800 (CST) From: Yu Kuai To: song@kernel.org, mariusz.tkaczyk@intel.com Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, yukuai3@huawei.com, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com Subject: [PATCH v2 5/7] md/raid1: don't wait for Faulty rdev in wait_blocked_rdev() Date: Fri, 11 Oct 2024 09:16:28 +0800 Message-Id: <20241011011630.2002803-6-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20241011011630.2002803-1-yukuai1@huaweicloud.com> References: <20241011011630.2002803-1-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: gCh0CgDH+sbefAhnm9MFDw--.55490S9 X-Coremail-Antispam: 1UD129KBjvJXoW7Aw1UWry8ZFyftFy3Gw1rZwb_yoW8Gw1fpa n3uFySqrWUCw1UXFnFkFy8AFyYqa1UKayIkrW2y3W8Xay3Ar95Jw40vas3JrykArZIvrZ8 XF13W3y8Ca45uF7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBE14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq 3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7 IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4U M4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCY1x0262kKe7AKxVWUAV WUtwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v2 6r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2 Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_ Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMI IF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUvYLPUUUUU = X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ Content-Type: text/plain; charset="utf-8" From: Yu Kuai Faulty rdev should never be accessed anymore, hence there is no point to wait for bad block to be acknowledged in this case while handling write request. Signed-off-by: Yu Kuai --- drivers/md/raid1.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 1679c1e9b3d5..cd3e94dceabc 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1425,25 +1425,16 @@ static bool wait_blocked_rdev(struct mddev *mddev, = struct bio *bio) if (!rdev) continue; =20 - if (test_bit(Blocked, &rdev->flags)) { - if (bio->bi_opf & REQ_NOWAIT) - return false; - - mddev_add_trace_msg(rdev->mddev, "raid1 wait rdev %d blocked", - rdev->raid_disk); - atomic_inc(&rdev->nr_pending); - md_wait_for_blocked_rdev(rdev, rdev->mddev); - goto retry; - } - /* don't write here until the bad block is acknowledged */ if (test_bit(WriteErrorSeen, &rdev->flags) && rdev_has_badblock(rdev, bio->bi_iter.bi_sector, - bio_sectors(bio)) < 0) { + bio_sectors(bio)) < 0) + set_bit(BlockedBadBlocks, &rdev->flags); + + if (rdev_blocked(rdev)) { if (bio->bi_opf & REQ_NOWAIT) return false; =20 - set_bit(BlockedBadBlocks, &rdev->flags); mddev_add_trace_msg(rdev->mddev, "raid1 wait rdev %d blocked", rdev->raid_disk); atomic_inc(&rdev->nr_pending); --=20 2.39.2