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Qu Wenruo 2f2f6bfe17 btrfs-progs: btrfstune: add the ability to convert to block group tree feature 
The new '-b' option will be responsible for converting to block group
tree compat ro feature.

The workflow looks like this for new convert:

- Setting CHANGING_BG_TREE flag
  And initialize fs_info->last_converted_bg_bytenr value to (u64)-1.

  Any bg with bytenr >= last_converted_bg_bytenr will have its bg item
  update go to the new root (bg tree).

- Iterate each block group by their bytenr in descending order
  This involves:
  * Delete the old bg item from the old tree (extent tree)
  * Update last_converted_bg_bytenr to the bytenr of the bg
  * Add the new bg item into the new tree (bg tree)
  * If we have converted a bunch of bgs, commit current transaction

- Clear CHANGING_BG_TREE flag
  And set the new BLOCK_GROUP_TREE compat ro flag and commit.

And since we're doing the convert in multiple transactions, we also need
to resume from last interrupted convert.

In that case, we just grab the last unconverted bg, and start from it.

And to co-operate with the new kernel requirement for both no-holes and
free-space-tree features, the convert tool will check for
free-space-tree feature. If not enabled, will error out with an error
message to how to continue (by mounting with "-o space_cache=v2").

For missing no-holes feature, we just need to set the flag during
convert.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-09-12 18:25:32 +02:00
..
_static btrfs-progs: docs: update template, more about subvolumes 2022-01-11 15:46:33 +01:00
_templates btrfs-progs: docs: update template, more about subvolumes 2022-01-11 15:46:33 +01:00
Administration.rst btrfs-progs: docs: move flexibility to Administration 2022-05-17 21:12:19 +02:00
Auto-repair.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
Balance.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
btrfs-balance.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
btrfs-check.rst btrfs-progs: docs: convert btrfs-check to rst 2021-10-29 17:30:04 +02:00
btrfs-convert.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
btrfs-device.rst btrfs-progs: device: add replace subcommand as alias to 1st level command 2022-08-16 15:18:11 +02:00
btrfs-filesystem.rst btrfs-progs: docs: convert btrfs-filesystem to rst 2021-10-29 17:30:04 +02:00
btrfs-find-root.rst btrfs-progs: docs: convert btrfs-find-root to rst 2021-10-29 17:30:04 +02:00
btrfs-image.rst btrfs-progs: docs: convert btrfs-image to rst 2021-10-29 17:30:04 +02:00
btrfs-inspect-internal.rst btrfs-progs: docs: convert btrfs-inspect-internal to rst 2021-10-29 17:30:04 +02:00
btrfs-ioctl.rst btrfs-progs: docs: convert btrfs-ioctl.asciidoc to RST 2022-05-18 13:28:35 +02:00
btrfs-man5.rst btrfs-progs: docs: copy more contents from wiki 2022-05-17 21:12:19 +02:00
btrfs-map-logical.rst btrfs-progs: docs: convert btrfs-map-logical to rst 2021-10-29 17:30:04 +02:00
btrfs-property.rst btrfs-progs: docs: reformat btrfs-property manual page 2022-06-06 15:47:57 +02:00
btrfs-qgroup.rst btrfs-progs: docs: convert btrfs-qgroup to rst 2021-10-29 17:30:03 +02:00
btrfs-quota.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
btrfs-receive.rst btrfs-progs: receive: encoded_write fallback to explicit decode and write 2022-06-07 13:59:32 +02:00
btrfs-replace.rst btrfs-progs: docs: RST formatting fixups 2021-11-18 10:17:21 +01:00
btrfs-rescue.rst btrfs-progs: rescue: introduce clear-uuid-tree 2021-11-22 21:45:37 +01:00
btrfs-restore.rst btrfs-progs: docs: convert btrfs-restore to rst 2021-10-29 17:30:03 +02:00
btrfs-scrub.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
btrfs-select-super.rst btrfs-progs: docs: add sample RSTified manual page 2021-10-29 17:30:03 +02:00
btrfs-send.rst btrfs-progs: send: stream v2 ioctl flags 2022-06-07 13:59:33 +02:00
btrfs-subvolume.rst btrfs-progs: docs: make description of list output more clear 2022-06-06 15:48:03 +02:00
btrfs.rst btrfs-progs: docs: convert btrfs(8) to rst 2021-10-29 17:30:04 +02:00
btrfsck.8 btrfs-progs: docs: use manual page link instead of symlink 2018-10-23 14:48:39 +02:00
btrfstune.rst btrfs-progs: btrfstune: add the ability to convert to block group tree feature 2022-09-12 18:25:32 +02:00
ch-balance-filters.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
ch-balance-intro.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
ch-bootloaders.rst btrfs-progs: docs: separate bootloaders chapter 2022-05-17 21:12:19 +02:00
ch-checksumming.rst btrfs-progs: docs: more docs updates 2022-01-10 16:20:34 +01:00
ch-compression.rst btrfs-progs: docs: clarify zstd level mapping 2022-02-16 22:48:01 +01:00
ch-convert-intro.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
ch-file-attributes.rst btrfs-progs: docs: update file attributes 2022-03-08 18:11:40 +01:00
ch-flexibility.rst btrfs-progs: docs: move flexibility to Administration 2022-05-17 21:12:19 +02:00
ch-fs-limits.rst btrfs-progs: docs: fix superscript formatting 2022-05-20 23:52:20 +02:00
ch-hardware-considerations.rst btrfs-progs: docs: update header formatting 2022-05-20 23:59:40 +02:00
ch-mount-options.rst btrfs-progs: docs: split mount options 2022-01-12 00:09:29 +01:00
ch-quota-intro.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
ch-scrub-intro.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
ch-seeding-device.rst btrfs-progs: docs: copy more contents from wiki 2022-05-17 21:12:19 +02:00
ch-subvolume-intro.rst btrfs-progs: docs: update template, more about subvolumes 2022-01-11 15:46:33 +01:00
ch-swapfile.rst btrfs-progs: docs: split swapfile from section 5 2022-01-11 23:56:48 +01:00
ch-volume-management-intro.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
ch-zoned-intro.rst btrfs-progs: zoned: add upper and lower zone size boundaries 2022-06-06 15:47:50 +02:00
CHANGES.rst btrfs-progs: docs: distinguish Changes title 2022-08-16 15:18:10 +02:00
Checksumming.rst btrfs-progs: docs: add more chapters 2021-12-17 11:53:44 +01:00
CmdLineConventions btrfs-progs: fix a bunch of typos 2022-02-01 18:40:53 +01:00
CodingConventions btrfs-progs: docs: document conventions 2017-07-03 13:35:10 +02:00
Common-features.rst btrfs-progs: docs: update file attributes 2022-03-08 18:11:40 +01:00
Compression.rst btrfs-progs: docs: add more chapters 2021-12-17 11:53:44 +01:00
conf.py btrfs-progs: docs: set version from VERSION file 2022-02-16 23:24:12 +01:00
Contributors.rst btrfs-progs: docs: update kernel 5.19 contributor stats 2022-08-16 15:18:12 +02:00
Convert.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
Custom-ioctls.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
Deduplication.rst btrfs-progs: docs: update some chapters 2022-01-05 00:44:14 +01:00
Defragmentation.rst btrfs-progs: docs: update some chapters 2022-01-05 00:44:14 +01:00
dev-send-stream.rst btrfs-progs: docs: add send stream format description 2022-08-16 15:18:11 +02:00
DocConventions.rst btrfs-progs: docs: fix spinx build warnings 2022-08-16 15:18:10 +02:00
Experimental.rst btrfs-progs: docs: convert Experimental.md to RST 2022-05-17 23:11:03 +02:00
Feature-by-version.rst btrfs-progs: docs: add new 5.19 features 2022-09-10 22:47:24 +02:00
fsck.btrfs.rst btrfs-progs: docs: convert fsck.btrfs to rst 2021-10-29 17:30:03 +02:00
Glossary.rst btrfs-progs: docs: update Gloassary 2022-06-06 15:48:15 +02:00
Hardware.rst btrfs-progs: docs: separate chapter for hardware considerations 2022-05-17 21:12:19 +02:00
index.rst btrfs-progs: docs: add stub page for kernel changes 2022-09-10 22:47:27 +02:00
Inline-files.rst btrfs-progs: docs: update some chapters 2022-01-05 00:44:14 +01:00
INSTALL.rst btrfs-progs: docs: link INSTALL to docs 2022-05-12 13:56:03 +02:00
Interoperability.rst btrfs-progs: docs: add more chapters 2021-12-17 11:53:44 +01:00
Introduction.rst btrfs-progs: docs: fix superscript formatting 2022-05-20 23:52:20 +02:00
Kernel-by-version.rst btrfs-progs: docs: add stub page for kernel changes 2022-09-10 22:47:27 +02:00
Makefile.in btrfs-progs: docs: convert btrfs-ioctl.asciidoc to RST 2022-05-18 13:28:35 +02:00
man-index.rst btrfs-progs: docs: drop indices from pages 2021-11-26 00:48:24 +01:00
mkfs.btrfs.rst btrfs-progs: docs: fix typo in mkfs.btrfs 2022-06-06 15:48:00 +02:00
Qgroups.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
Quick-start.rst btrfs-progs: docs: add more of the new doc structure 2021-11-30 16:00:48 +01:00
Reflink.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
ReleaseChecklist btrfs-progs: Update README and other docs 2016-11-23 11:07:05 +01:00
Resize.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
Scrub.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
Seeding-device.rst btrfs-progs: docs: add more chapters 2021-12-17 11:53:44 +01:00
Send-receive.rst btrfs-progs: docs: add more chapters (part 2) 2021-12-17 11:53:44 +01:00
Source-repositories.rst btrfs-progs: docs: fix spinx build warnings 2022-08-16 15:18:10 +02:00
Subpage.rst btrfs-progs: docs: update header formatting 2022-05-20 23:59:40 +02:00
Subvolumes.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
Swapfile.rst btrfs-progs: docs: split swapfile from section 5 2022-01-11 23:56:48 +01:00
Tree-checker.rst btrfs-progs: docs: copy more contents from wiki 2022-05-17 21:12:19 +02:00
Trim.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
trouble-index.rst btrfs-progs: docs: update troubleshooting 2022-08-16 15:18:11 +02:00
Volume-management.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00
Zoned-mode.rst btrfs-progs: docs: add more chapters (part 3) 2021-12-17 15:35:10 +01:00