From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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.lore.kernel.org (Postfix) with ESMTPS id EBF71CCF9F8 for ; Mon, 3 Nov 2025 13:35:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:To:From:Reply-To:Cc:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=UqoAgN2ChCUcwyskxiAjOMUPe5mLMipbgwdQeX5Cg+I=; b=JuobdJZVr0tOXu/XC1hUVnZA46 1wwwhzhMfXXp9LKsjWWWvZEuYsjIXd5PUevbPUyYH8MRrnyXZn4jOUKlV8kFIOJysFC3Iyt+jISR4 XMrHiRx3UPFVEjokAio+uz8K7zzmzlB+oFaB78+HE9xzhDpUC299PuyeKI9sImVVUWt6K5Bh9cJWR o9kMjvqo14+MhfA4kDE3tLwShmSb5BYUM4Ot8RToDr5x49cpfho7NpRCW79PjjpNjhjvfJ4bB4z0F /G8USzvzaw10jKs/5awxVleLrQ5udoqPQyDyfX7KJZOafW3I6HVaPvz/J+VrtCr9xmfZWGvytfFrH jH2TX1eg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFuiI-00000009tyT-44Kq; Mon, 03 Nov 2025 13:35:14 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFuiG-00000009txu-12qX for linux-nvme@lists.infradead.org; Mon, 03 Nov 2025 13:35:12 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 47B526013E; Mon, 3 Nov 2025 13:35:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 144D7C4CEE7; Mon, 3 Nov 2025 13:35:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762176911; bh=kipPvaFiey0COV9EM0kWVSk7RINlLWVsCFeKU1yW3Sc=; h=From:To:Subject:Date:From; b=geRvIv5tSUYrwESv0YQwzEYQ3KRXQgaZkPvj4DAePAULw3aryfrRyqrP0v96shMdF JMbBHL2WaWG5NcPu6PqSyVVS/S2m8+YI1dNuNlSVHdJkkp0I8DARUgPim5B53L/aA4 Rhd35JbuV4AdPOzXAKv++X/P3/gE0eNd/RPRoaaY1Jv8NrlTwCpEzclk7MttFx8fff mdFu15Qk+BcZd7N7yyKpkZIWxqyZwdpOF5ECdOwem7BgKipU0wXsW8L3yIoTjzwF2q tSJiOqD9b9qFCNHduo/2BUJpw7SLQU+622baMHIPAP5PUNZbMxsRle/7fzJEM6jKwY xF7W7Y8lJqSjQ== From: Damien Le Moal To: Jens Axboe , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, Keith Busch , Christoph Hellwig , dm-devel@lists.linux.dev, Mike Snitzer , Mikulas Patocka , "Martin K . Petersen" , linux-scsi@vger.kernel.org, linux-xfs@vger.kernel.org, Carlos Maiolino , linux-btrfs@vger.kernel.org, David Sterba Subject: [PATCH v2 00/15] Introduce cached report zones Date: Mon, 3 Nov 2025 22:31:08 +0900 Message-ID: <20251103133123.645038-1-dlemoal@kernel.org> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org This patch series implements a cached report zones using information from the block layer zone write plugs and a new zone condition tracking. This avoids having to execute slow report zones commands on the device when for instance mounting file systems, which can significantly speed things up, especially in setups with multiple SMR HDDs (e.g. a BTRFS RAID volume). The first patch improves handling of zone management commands. Patch 2 fixes zone resource updates and the following 3 patches cleanup the zone code in preparation for introducing cached zone report support. >From patch 6 to 13, cached report zones is implemented and made available to users with a new ioctl() command. Finally, patches 14 and 15 introduce the use of cached report zones in the mount operation of XFS and BTRFS. These patches are against Jens' for-next tree. Changes from v1: - Move the patch "block: handle zone management operations completions" at the beginning of the series and added a Fixes tag. - Reworked a little patch 2 as suggested by Bart (error path handling) - Added patch 8 as requested by Bart. - Added patch 12 as suggested by Bart. - Corrected various typos in commit messages and code comments. - Added review tags Damien Le Moal (15): block: handle zone management operations completions block: freeze queue when updating zone resources block: cleanup blkdev_report_zones() block: introduce disk_report_zone() block: reorganize struct blk_zone_wplug block: use zone condition to determine conventional zones block: track zone conditions block: refactor blkdev_report_zones() code block: introduce blkdev_get_zone_info() block: introduce blkdev_report_zones_cached() block: introduce BLKREPORTZONESV2 ioctl block: improve zone_wplugs debugfs attribute output block: add zone write plug condition to debugfs zone_wplugs btrfs: use blkdev_report_zones_cached() xfs: use blkdev_report_zones_cached() block/blk-zoned.c | 788 +++++++++++++++++++++++------- block/blk.h | 14 + block/ioctl.c | 1 + drivers/block/null_blk/null_blk.h | 3 +- drivers/block/null_blk/zoned.c | 4 +- drivers/block/ublk_drv.c | 4 +- drivers/block/virtio_blk.c | 11 +- drivers/block/zloop.c | 4 +- drivers/md/dm-zone.c | 54 +- drivers/md/dm.h | 3 +- drivers/nvme/host/core.c | 5 +- drivers/nvme/host/multipath.c | 4 +- drivers/nvme/host/nvme.h | 2 +- drivers/nvme/host/zns.c | 10 +- drivers/scsi/sd.h | 2 +- drivers/scsi/sd_zbc.c | 17 +- fs/btrfs/zoned.c | 11 +- fs/xfs/xfs_zone_alloc.c | 2 +- include/linux/blkdev.h | 49 +- include/linux/device-mapper.h | 10 +- include/uapi/linux/blkzoned.h | 41 +- include/uapi/linux/fs.h | 2 +- 22 files changed, 767 insertions(+), 274 deletions(-) base-commit: ba6a8208cc205c6545c610b5863ea89466fc486a -- 2.51.0