From mboxrd@z Thu Jan 1 00:00:00 1970 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 8C3161EF36C; Tue, 4 Nov 2025 01:35:36 +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=1762220136; cv=none; b=H4+WaaXMNI/OOM27TeAbmdHt49VHovYD5ol9RgiG3upDnbSJcQoIybawFBbyv+EvrzJlX5i7mEviExSDsx2tVUQQDcHEGBGdui5FfA+an/DJxCaXNVrnaF++4qw20GwLdY8a0/g2Tzb5zY5jEk8hTgW1mddJG3f42YALMzCB7/4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762220136; c=relaxed/simple; bh=E4sdnP60o+W5GBAMSZaGMY71b2TSCKqPh9HWyY4k1gU=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=kbGDpfYgKWsBETEybWq29WOemlUNtOBkaaGhNEAydI9P8qipgMphqXj/peIVvFrNEiCTxMpkor2CKw4eEjHdfIdOmMbrSWq845+rZI08jORVgTi6RnYyDjEiC3Wmj5gn0mOXEO+HprkP/DlkVdOhtUATc0+vSMMTWRRSiYRhvlo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=huht8O2O; 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="huht8O2O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B3352C4CEFD; Tue, 4 Nov 2025 01:35:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762220136; bh=E4sdnP60o+W5GBAMSZaGMY71b2TSCKqPh9HWyY4k1gU=; h=From:To:Subject:Date:From; b=huht8O2OLPMAIR6ZU1YuP2gqNEeRsIlg4HuyBjrTfueZW61tSBb54zIMMgC6RJf3R jqDnJq4Kf5YeU0NMuKsAuHVoFeNlT64wwe2mzJgGPw8JqatG9YczOEmIOVIZhh6waI 446AhUq6DWAoHBi5Kdz4/cS0YiBebN6gJJfBjR669iZdGcFrTNR/O6dsFcYhpUvl+7 08q7wjIytIuLVSUowA6qOKThOW4ofyoiWc6KVJYYCOpUzg282+AHBtV9OhmD8vuUDz jvPAiHtR0xUzEanUb6eDvtLHHaNsNa3w0aeoqU7bXBIeAhw4+hRJtI0VBRLx+i7CeH 1UryUzkc7WzHQ== 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 v3 00/15] Introduce cached report zones Date: Tue, 4 Nov 2025 10:31:32 +0900 Message-ID: <20251104013147.913802-1-dlemoal@kernel.org> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 v2: - Rebased on the latest block for-next tree - Fixed compilation warning (undocumented argument) in patch 4 - Modified patch 13 to display condition name instead of raw value, as suggested by Johannes. - Added review tags 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 | 790 +++++++++++++++++++++++------- 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 | 20 +- 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, 770 insertions(+), 276 deletions(-) base-commit: 359212b8a23d517d3eb1708d4f28995634afd7d3 -- 2.51.0