From patchwork Wed May 1 11:09:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 13650460 X-Patchwork-Delegate: snitzer@redhat.com Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 AB43C48CE0; Wed, 1 May 2024 11:09:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714561765; cv=none; b=eOCGIzn5+1+U0vnD1ldkNWBGhoM1WIoDZS92j5ZqNrWHnrksmRGqvYe9HSUztUgwMgZHGFlATQz3dojfYzuq7ueEBdqtqfjETuIt+ntyNfi0tUfBjq1SU66+kebFE2lCcm1KWWMBBaVVlGcfqcI+OS2966LCIcrEfpwCoKRS188= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714561765; c=relaxed/simple; bh=MSRDFEdBwPqkuZNym8HCtTIVxfyLWOeBU4cc8kv4sNY=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jKv3oLb+iD7U1MgfW3i6tpB2XPTQkqq7mOpIiDIFa3s3srqm4nAF9Xgjtywrt0ScY71pmrtbuwgF4QutyMFgJRggNihQrbwS3wKiTgPq9faZx2+3x0kRKYIZqGq3TSj3GmUKgS2kyvb3TTpkXpfhtgpA2JVaRIsnuqYT1Y/h8/g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lRV8cXcg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lRV8cXcg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B94F1C4AF1C; Wed, 1 May 2024 11:09:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1714561765; bh=MSRDFEdBwPqkuZNym8HCtTIVxfyLWOeBU4cc8kv4sNY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=lRV8cXcgGuBS9hVahaGt9hDh76jPCtM6eE7oBF4J36fXObNyDgRAg2Pocd/VMoVhj LEqqo6f/yLONgm/Xh+NxHRjQdfOIIF6bNGRDLlmWoSVy/1L5LkKOBC3LLaLpoe0BFh UG3CWivqE8bt9uNvIPOBTETygXrFbRbT3/dpG9igPbHO/p7TM2uT5XvgZU4p6dhMyg xIYCBmT/dSd0jHnRHXDzH1Fzj8TDJiMXOHIatGoNmpmQc+RpN5IBb/jb8+1e9q3P4m sD+wzfB0WYwDk1Ao+mu3yGlXrNTsHidWqdmvGIzi5S3O72oHTCIX5m7Z0oLizDhzTL L7Fp1t4FxJCHg== From: Damien Le Moal To: linux-block@vger.kernel.org, Jens Axboe , dm-devel@lists.linux.dev, Mike Snitzer Subject: [PATCH v3 14/14] block: Cleanup blk_revalidate_zone_cb() Date: Wed, 1 May 2024 20:09:07 +0900 Message-ID: <20240501110907.96950-15-dlemoal@kernel.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240501110907.96950-1-dlemoal@kernel.org> References: <20240501110907.96950-1-dlemoal@kernel.org> Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Define the code for checking conventional and sequential write required zones suing the functions blk_revalidate_conv_zone() and blk_revalidate_seq_zone() respectively. This simplifies the zone type switch-case in blk_revalidate_zone_cb(). No functional changes. Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke --- block/blk-zoned.c | 129 +++++++++++++++++++++++++++------------------- 1 file changed, 77 insertions(+), 52 deletions(-) diff --git a/block/blk-zoned.c b/block/blk-zoned.c index 15e4e14e16f7..48e5e3bbb89c 100644 --- a/block/blk-zoned.c +++ b/block/blk-zoned.c @@ -1656,6 +1656,74 @@ static int disk_update_zone_resources(struct gendisk *disk, return queue_limits_commit_update(q, &lim); } +static int blk_revalidate_conv_zone(struct blk_zone *zone, unsigned int idx, + struct blk_revalidate_zone_args *args) +{ + struct gendisk *disk = args->disk; + struct request_queue *q = disk->queue; + + if (zone->capacity != zone->len) { + pr_warn("%s: Invalid conventional zone capacity\n", + disk->disk_name); + return -ENODEV; + } + + if (!disk_need_zone_resources(disk)) + return 0; + + if (!args->conv_zones_bitmap) { + args->conv_zones_bitmap = + blk_alloc_zone_bitmap(q->node, args->nr_zones); + if (!args->conv_zones_bitmap) + return -ENOMEM; + } + + set_bit(idx, args->conv_zones_bitmap); + + return 0; +} + +static int blk_revalidate_seq_zone(struct blk_zone *zone, unsigned int idx, + struct blk_revalidate_zone_args *args) +{ + struct gendisk *disk = args->disk; + struct blk_zone_wplug *zwplug; + unsigned int wp_offset; + unsigned long flags; + + /* + * Remember the capacity of the first sequential zone and check + * if it is constant for all zones. + */ + if (!args->zone_capacity) + args->zone_capacity = zone->capacity; + if (zone->capacity != args->zone_capacity) { + pr_warn("%s: Invalid variable zone capacity\n", + disk->disk_name); + return -ENODEV; + } + + /* + * We need to track the write pointer of all zones that are not + * empty nor full. So make sure we have a zone write plug for + * such zone if the device has a zone write plug hash table. + */ + if (!disk->zone_wplugs_hash) + return 0; + + wp_offset = blk_zone_wp_offset(zone); + if (!wp_offset || wp_offset >= zone->capacity) + return 0; + + zwplug = disk_get_and_lock_zone_wplug(disk, zone->wp, GFP_NOIO, &flags); + if (!zwplug) + return -ENOMEM; + spin_unlock_irqrestore(&zwplug->lock, flags); + disk_put_zone_wplug(zwplug); + + return 0; +} + /* * Helper function to check the validity of zones of a zoned block device. */ @@ -1664,12 +1732,9 @@ static int blk_revalidate_zone_cb(struct blk_zone *zone, unsigned int idx, { struct blk_revalidate_zone_args *args = data; struct gendisk *disk = args->disk; - struct request_queue *q = disk->queue; sector_t capacity = get_capacity(disk); - sector_t zone_sectors = q->limits.chunk_sectors; - struct blk_zone_wplug *zwplug; - unsigned long flags; - unsigned int wp_offset; + sector_t zone_sectors = disk->queue->limits.chunk_sectors; + int ret; /* Check for bad zones and holes in the zone report */ if (zone->start != args->sector) { @@ -1709,62 +1774,22 @@ static int blk_revalidate_zone_cb(struct blk_zone *zone, unsigned int idx, /* Check zone type */ switch (zone->type) { case BLK_ZONE_TYPE_CONVENTIONAL: - if (zone->capacity != zone->len) { - pr_warn("%s: Invalid conventional zone capacity\n", - disk->disk_name); - return -ENODEV; - } - - if (!disk_need_zone_resources(disk)) - break; - if (!args->conv_zones_bitmap) { - args->conv_zones_bitmap = - blk_alloc_zone_bitmap(q->node, args->nr_zones); - if (!args->conv_zones_bitmap) - return -ENOMEM; - } - set_bit(idx, args->conv_zones_bitmap); + ret = blk_revalidate_conv_zone(zone, idx, args); break; case BLK_ZONE_TYPE_SEQWRITE_REQ: - /* - * Remember the capacity of the first sequential zone and check - * if it is constant for all zones. - */ - if (!args->zone_capacity) - args->zone_capacity = zone->capacity; - if (zone->capacity != args->zone_capacity) { - pr_warn("%s: Invalid variable zone capacity\n", - disk->disk_name); - return -ENODEV; - } - - /* - * We need to track the write pointer of all zones that are not - * empty nor full. So make sure we have a zone write plug for - * such zone if the device has a zone write plug hash table. - */ - if (!disk->zone_wplugs_hash) - break; - wp_offset = blk_zone_wp_offset(zone); - if (wp_offset && wp_offset < zone->capacity) { - zwplug = disk_get_and_lock_zone_wplug(disk, zone->wp, - GFP_NOIO, &flags); - if (!zwplug) - return -ENOMEM; - spin_unlock_irqrestore(&zwplug->lock, flags); - disk_put_zone_wplug(zwplug); - } - + ret = blk_revalidate_seq_zone(zone, idx, args); break; case BLK_ZONE_TYPE_SEQWRITE_PREF: default: pr_warn("%s: Invalid zone type 0x%x at sectors %llu\n", disk->disk_name, (int)zone->type, zone->start); - return -ENODEV; + ret = -ENODEV; } - args->sector += zone->len; - return 0; + if (!ret) + args->sector += zone->len; + + return ret; } /**