From: David Sterba <dsterba@suse.cz>
To: Naohiro Aota <naohiro.aota@wdc.com>
Cc: linux-btrfs@vger.kernel.org, dsterba@suse.com, hare@suse.com,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v15 00/42] btrfs: zoned block device support
Date: Wed, 10 Feb 2021 20:58:29 +0100 [thread overview]
Message-ID: <20210210195829.GW1993@twin.jikos.cz> (raw)
In-Reply-To: <cover.1612433345.git.naohiro.aota@wdc.com>
On Thu, Feb 04, 2021 at 07:21:39PM +0900, Naohiro Aota wrote:
> This series adds zoned block device support to btrfs. Some of the patches
> in the previous series are already merged as preparation patches.
Moved from for-next to misc-next.
> * Log-structured superblock
>
> Superblock (and its copies) is the only data structure in btrfs which
> has a fixed location on a device. Since we cannot overwrite in a
> sequential write required zone, we cannot place superblock in the
> zone.
>
> This series implements superblock log writing. It uses two zones as a
> circular buffer to write updated superblocks. Once the first zone is filled
> up, start writing into the second zone. The first zone will be reset once
> both zones are filled. We can determine the postion of the latest
> superblock by reading the write pointer information from a device.
About that, in this patchset it's still leaving superblock at the fixed
zone number while we want it at a fixed location, spanning 2 zones
regardless of their size.
next prev parent reply other threads:[~2021-02-10 20:01 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 10:21 [PATCH v15 00/42] btrfs: zoned block device support Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 01/42] block: add bio_add_zone_append_page Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 02/42] iomap: support REQ_OP_ZONE_APPEND Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 03/42] btrfs: zoned: defer loading zone info after opening trees Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 04/42] btrfs: zoned: use regular super block location on zone emulation Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 05/42] btrfs: release path before calling to btrfs_load_block_group_zone_info Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 06/42] btrfs: zoned: do not load fs_info::zoned from incompat flag Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 07/42] btrfs: zoned: disallow fitrim on zoned filesystems Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 08/42] btrfs: zoned: allow zoned filesystems on non-zoned block devices Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 09/42] btrfs: zoned: implement zoned chunk allocator Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 10/42] btrfs: zoned: verify device extent is aligned to zone Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 11/42] btrfs: zoned: load zone's allocation offset Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 12/42] btrfs: zoned: calculate allocation offset for conventional zones Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 13/42] btrfs: zoned: track unusable bytes for zones Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 14/42] btrfs: zoned: implement sequential extent allocation Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 15/42] btrfs: zoned: redirty released extent buffers Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 16/42] btrfs: zoned: advance allocation pointer after tree log node Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 17/42] btrfs: zoned: reset zones of unused block groups Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 18/42] btrfs: factor out helper adding a page to bio Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 19/42] btrfs: zoned: use bio_add_zone_append_page Naohiro Aota
2021-02-04 10:21 ` [PATCH v15 20/42] btrfs: zoned: handle REQ_OP_ZONE_APPEND as writing Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 21/42] btrfs: zoned: split ordered extent when bio is sent Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 22/42] btrfs: zoned: check if bio spans across an ordered extent Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 23/42] btrfs: extend btrfs_rmap_block for specifying a device Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 24/42] btrfs: zoned: cache if block-group is on a sequential zone Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 25/42] btrfs: save irq flags when looking up an ordered extent Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 26/42] btrfs: zoned: use ZONE_APPEND write for zoned btrfs Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 27/42] btrfs: zoned: enable zone append writing for direct IO Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 28/42] btrfs: zoned: introduce dedicated data write path for zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 29/42] btrfs: zoned: serialize metadata IO Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 30/42] btrfs: zoned: wait for existing extents before truncating Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 31/42] btrfs: zoned: do not use async metadata checksum on zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 32/42] btrfs: zoned: mark block groups to copy for device-replace Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 33/42] btrfs: zoned: implement cloning for zoned device-replace Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 34/42] btrfs: zoned: implement copying " Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 35/42] btrfs: zoned: support dev-replace in zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 36/42] btrfs: zoned: enable relocation on a zoned filesystem Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 37/42] btrfs: zoned: relocate block group to repair IO failure in zoned filesystems Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 38/42] btrfs: split alloc_log_tree() Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 39/42] btrfs: zoned: extend zoned allocator to use dedicated tree-log block group Naohiro Aota
2021-02-04 10:22 ` [PATCH v15 40/42] btrfs: zoned: serialize log transaction on zoned filesystems Naohiro Aota
2021-02-04 11:50 ` Filipe Manana
2021-02-05 7:21 ` Naohiro Aota
2021-02-05 9:15 ` Naohiro Aota
2021-02-05 11:21 ` Filipe Manana
2021-02-09 1:49 ` David Sterba
2021-02-04 10:22 ` [PATCH v15 41/42] btrfs: zoned: reorder log node allocation on zoned filesystem Naohiro Aota
2021-02-04 11:57 ` Filipe Manana
2021-02-04 14:54 ` Johannes Thumshirn
2021-02-04 15:48 ` David Sterba
2021-02-04 15:51 ` Johannes Thumshirn
2021-02-04 10:22 ` [PATCH v15 42/42] btrfs: zoned: enable to mount ZONED incompat flag Naohiro Aota
2021-02-05 9:26 ` [PATCH v15 43/43] btrfs: zoned: deal with holes writing out tree-log pages Naohiro Aota
2021-02-05 11:49 ` Filipe Manana
2021-02-05 12:55 ` Naohiro Aota
2021-02-05 13:07 ` Filipe Manana
2021-02-05 14:19 ` Filipe Manana
2021-02-05 14:46 ` Naohiro Aota
2021-02-05 14:58 ` [PATCH v15.1 " Naohiro Aota
2021-02-05 16:25 ` Filipe Manana
2021-02-09 1:55 ` David Sterba
2021-02-10 19:58 ` David Sterba [this message]
2021-02-11 9:58 ` [PATCH v15 00/42] btrfs: zoned block device support Johannes Thumshirn
2021-02-11 15:19 ` David Sterba
2021-02-11 15:26 ` Johannes Thumshirn
2021-02-11 15:46 ` David Sterba
2021-02-15 16:58 ` Johannes Thumshirn
2021-02-15 17:02 ` David Sterba
2021-02-16 4:33 ` Naohiro Aota
2021-02-16 11:46 ` David Sterba
2021-02-22 7:50 ` Naohiro Aota
2021-02-22 16:00 ` David Sterba
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