[PATCH 00/26] btrfs-progs: zoned: zoned block device support

[Naohiro Aota <naohiro.aota@wdc.com>]

This series implements user-land side support for zoned btrfs.

This series is based on misc-next + preparation series below.
https://lore.kernel.org/linux-btrfs/cover.1617694997.git.naohiro.aota@wdc.com/

Userland tool depends on patched util-linux (libblkid and wipefs) to handle
log-structured superblock. The patches are available in the util-linux list.
https://lore.kernel.org/util-linux/20210426055036.2103620-1-naohiro.aota@wdc.com/T/

Followup work will address several areas that can be improved.


* Patch series organization

Patches 1 and 2 are preparation patches. They add a helper function
queue_param() and provide fs_info in struct btrfs_device as same as the
kernel code.

Patch 3 adds a check for a header file of zoned block device support.

Patches 4 to 16 implement zoned btrfs features (loading zone info,
chunk/extent allocator, zone emulation for a non-zoned device, etc.) like
in the kernel code.

Patches 17 to 19 extend btrfs_prepare_device() for a zoned device.

Patches 20 to 24 implement zoned support for mkfs.btrfs.

And, patches 25 and 26 add zoned support for other commands ("device add"
and "device replace").

Naohiro Aota (26):
  btrfs-progs: utils: Introduce queue_param helper function
  btrfs-progs: provide fs_info from btrfs_device
  btrfs-progs: build: zoned: Check zoned block device support
  btrfs-progs: zoned: add new ZONED feature flag
  btrfs-progs: zoned: get zone information of zoned block devices
  btrfs-progs: zoned: check and enable ZONED mode
  btrfs-progs: zoned: introduce max_zone_append_size
  btrfs-progs: zoned: disallow mixed-bg in ZONED mode
  btrfs-progs: zoned: allow zoned filesystems on non-zoned block devices
  btrfs-progs: zoned: implement log-structured superblock for ZONED mode
  btrfs-progs: zoned: implement zoned chunk allocator
  btrfs-progs: zoned: load zone's allocation offset
  btrfs-progs: zoned: implement sequential extent allocation
  btrfs-progs: zoned: calculate allocation offset for conventional zones
  btrfs-progs: zoned: redirty clean extent buffers in zoned btrfs
  btrfs-progs: zoned: reset zone of freed block group
  btrfs-progs: zoned: support resetting zoned device
  btrfs-progs: zoned: support zero out on zoned block device
  btrfs-progs: zoned: support wiping SB on sequential write zone
  btrfs-progs: mkfs: zoned: detect and enable zoned feature flag
  btrfs-progs: mkfs: zoned: check incompatible features with zoned btrfs
  btrfs-progs: mkfs: zoned: tweak initial system block group placement
  btrfs-progs: mkfs: zoned: use sbwrite to update superblock
  btrfs-progs: zoned: wipe temporary superblocks in superblock log zone
  btrfs-progs: zoned: device-add: support ZONED device
  btrfs-progs: zoned: introduce zoned support for device replace

 Makefile                    |    2 +-
 cmds/device.c               |   21 +-
 cmds/inspect-dump-super.c   |    3 +-
 cmds/replace.c              |   13 +-
 cmds/rescue-chunk-recover.c |    2 +-
 common/device-scan.c        |    7 +-
 common/device-utils.c       |  127 +++-
 common/device-utils.h       |    4 +
 common/fsfeatures.c         |    8 +
 common/fsfeatures.h         |    3 +-
 configure.ac                |   13 +
 kerncompat.h                |   23 +
 kernel-shared/ctree.h       |   28 +-
 kernel-shared/disk-io.c     |   39 +-
 kernel-shared/extent-tree.c |   26 +
 kernel-shared/print-tree.c  |    1 +
 kernel-shared/transaction.c |    6 +
 kernel-shared/volumes.c     |  153 ++++-
 kernel-shared/volumes.h     |    8 +-
 kernel-shared/zoned.c       | 1181 +++++++++++++++++++++++++++++++++++
 kernel-shared/zoned.h       |  170 +++++
 mkfs/common.c               |   38 +-
 mkfs/common.h               |    1 +
 mkfs/main.c                 |  112 ++--
 24 files changed, 1887 insertions(+), 102 deletions(-)
 create mode 100644 kernel-shared/zoned.c
 create mode 100644 kernel-shared/zoned.h

-- 
2.31.1