From patchwork Wed Feb 28 22:56:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13576043 X-Patchwork-Delegate: snitzer@redhat.com Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 9C67F7290F; Wed, 28 Feb 2024 22:57:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709161026; cv=none; b=ZUA69PwBGQ3JnnDQmS3yV5WCjd6P7JxQqiXW3s6LrTyijScea0J0AB6iKz6EoJSB+yjI69jGASaAThNFczgeykGtWFLqQbrJk0PORwX022t4y3uqYnM5p8TUvy7J9o42Vhv5pRheyC2Fnhc1Ls0qff6rQMfdviIf2CNaLEVTeBk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709161026; c=relaxed/simple; bh=EyGievBHp61SYFzpefanBWL5PLO6CviK4dFYj7JFjew=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=G8liFkOLaUX49atoEmSNzyLoFNGWIgp2sCsm0RzDjW8S2Wkxo2m6bU4sT2bDDK7ZoisWY8R9HUi6TFg0wZ5m2MC49AuzDYjfqylR5Bq64HCEVHNndJfCH0ByXdGIsgTPJrj9tYlNcnKDxwvYtY78mRB4PgSE0H83C3WLsA1AZzE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=gddZRF9h; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="gddZRF9h" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=5SZHUYDI1UghuHcUnZfni2d98+Jb3vhnDCVfYx1sFtc=; b=gddZRF9hPRyqi2GNlBytoV8Aym nOUs1eO57L5aY81UIHu/ab79DmgQj1tmBnm1yZ+n590J35jyT9dJ1luJ0CJkqSNLCPfNeZJvZIJAY Tf5P92VNWctOomMY6C8CRDCam0fn+x14h4RIpbRSjAAyqhrpdyjp3hZh97BGMZzYnmMcnk+QfUn+B 8mUC1PVlZIeGcE2kn4LrQ5sZRRVzY2lNbNd8MGdSKO/dC6UOgcViPv+2SZkMsx39dol1TEiJi9EHI pzJQy90r7y+BY0dDgWJf5hAJYvae/LNviCz2Ut28oAcjYft/8DTouqKcNzRdUZetKtIN3VYFAOfAd aBwVp+ww==; Received: from [4.28.11.157] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1rfSrH-0000000BCPb-27ed; Wed, 28 Feb 2024 22:57:03 +0000 From: Christoph Hellwig To: Jens Axboe , Mike Snitzer , Mikulas Patocka , Song Liu , Yu Kuai Cc: dm-devel@lists.linux.dev, linux-block@vger.kernel.org, linux-raid@vger.kernel.org Subject: [PATCH 11/14] md/raid10: use the atomic queue limit update APIs Date: Wed, 28 Feb 2024 14:56:50 -0800 Message-Id: <20240228225653.947152-12-hch@lst.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240228225653.947152-1-hch@lst.de> References: <20240228225653.947152-1-hch@lst.de> Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Build the queue limits outside the queue and apply them using queue_limits_set. To make the code more obvious also split the queue limits handling into separate helpers. Signed-off-by: Christoph Hellwig --- drivers/md/raid10.c | 60 +++++++++++++++++++++++++-------------------- 1 file changed, 33 insertions(+), 27 deletions(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 95fa9e728f95a9..692a3bd94100e2 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2124,10 +2124,9 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev) continue; } - if (!mddev_is_dm(mddev)) - disk_stack_limits(mddev->gendisk, rdev->bdev, - rdev->data_offset << 9); - + err = mddev_stack_new_rdev(mddev, rdev); + if (err) + return err; p->head_position = 0; p->recovery_disabled = mddev->recovery_disabled - 1; rdev->raid_disk = mirror; @@ -2143,10 +2142,9 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev) clear_bit(In_sync, &rdev->flags); set_bit(Replacement, &rdev->flags); rdev->raid_disk = repl_slot; - err = 0; - if (!mddev_is_dm(mddev)) - disk_stack_limits(mddev->gendisk, rdev->bdev, - rdev->data_offset << 9); + err = mddev_stack_new_rdev(mddev, rdev); + if (err) + return err; conf->fullsync = 1; WRITE_ONCE(p->replacement, rdev); } @@ -3995,14 +3993,26 @@ static struct r10conf *setup_conf(struct mddev *mddev) return ERR_PTR(err); } -static void raid10_set_io_opt(struct r10conf *conf) +static unsigned int raid10_nr_stripes(struct r10conf *conf) { - int raid_disks = conf->geo.raid_disks; + unsigned int raid_disks = conf->geo.raid_disks; + + if (conf->geo.raid_disks % conf->geo.near_copies) + return raid_disks; + return raid_disks / conf->geo.near_copies; +} - if (!(conf->geo.raid_disks % conf->geo.near_copies)) - raid_disks /= conf->geo.near_copies; - blk_queue_io_opt(conf->mddev->queue, (conf->mddev->chunk_sectors << 9) * - raid_disks); +static int raid10_set_queue_limits(struct mddev *mddev) +{ + struct r10conf *conf = mddev->private; + struct queue_limits lim; + + blk_set_stacking_limits(&lim); + lim.max_write_zeroes_sectors = 0; + lim.io_min = mddev->chunk_sectors << 9; + lim.io_opt = lim.io_min * raid10_nr_stripes(conf); + mddev_stack_rdev_limits(mddev, &lim); + return queue_limits_set(mddev->queue, &lim); } static int raid10_run(struct mddev *mddev) @@ -4014,6 +4024,7 @@ static int raid10_run(struct mddev *mddev) sector_t size; sector_t min_offset_diff = 0; int first = 1; + int ret = -EIO; if (mddev->private == NULL) { conf = setup_conf(mddev); @@ -4040,12 +4051,6 @@ static int raid10_run(struct mddev *mddev) } } - if (!mddev_is_dm(conf->mddev)) { - blk_queue_max_write_zeroes_sectors(mddev->queue, 0); - blk_queue_io_min(mddev->queue, mddev->chunk_sectors << 9); - raid10_set_io_opt(conf); - } - rdev_for_each(rdev, mddev) { long long diff; @@ -4074,14 +4079,16 @@ static int raid10_run(struct mddev *mddev) if (first || diff < min_offset_diff) min_offset_diff = diff; - if (!mddev_is_dm(mddev)) - disk_stack_limits(mddev->gendisk, rdev->bdev, - rdev->data_offset << 9); - disk->head_position = 0; first = 0; } + if (!mddev_is_dm(conf->mddev)) { + ret = raid10_set_queue_limits(mddev); + if (ret) + goto out_free_conf; + } + /* need to check that every block has at least one working mirror */ if (!enough(conf, -1)) { pr_err("md/raid10:%s: not enough operational mirrors.\n", @@ -4182,7 +4189,7 @@ static int raid10_run(struct mddev *mddev) raid10_free_conf(conf); mddev->private = NULL; out: - return -EIO; + return ret; } static void raid10_free(struct mddev *mddev, void *priv) @@ -4959,8 +4966,7 @@ static void end_reshape(struct r10conf *conf) conf->reshape_safe = MaxSector; spin_unlock_irq(&conf->device_lock); - if (!mddev_is_dm(conf->mddev)) - raid10_set_io_opt(conf); + mddev_update_io_opt(conf->mddev, raid10_nr_stripes(conf)); conf->fullsync = 0; }