[PATCH 0/8] btrfs-progs: add support for write-intent bitmaps

[Qu Wenruo <wqu@suse.com>]

This patchset introduces the following support for WRITE_INTENT_BITMAP
compat RO flags:

- mkfs support for EXTRA_SUPER_RESERVED and WRITE_INTENT_BITMAP

  The extra reservation size is 1MiB, and is hardcoded so far.
  Although write-intent bitmaps will only utilize 4KiB of the extra
  1MiB.

- dump-supper support for both compat RO flags

- extra fsck warning when the reserved space is not properly respected

- new "btrfs inspect-internal dump-write-intent" command
  This is to dump the content of the write-intent bitmap for debug
  purpose.

Qu Wenruo (8):
  btrfs-progs: introduce a new compat RO flag, EXTRA_SUPER_RESERVED
  btrfs-progs: mkfs: add support for extra-super-reserved runtime flag
  btrfs-progs: print-tree: remove duplicated definition for compat RO
    flags
  btrfs-progs: print-tree: support btrfs_super_block::reserved_bytes
  btrfs-progs: check: add extra warning for dev extents inside the
    reserved range
  btrfs-progs: introduce the experimental compat RO flag,
    WRITE_INTENT_BITMAP
  btrfs-progs: introduce the on-disk format of btrfs write intent
    bitmaps
  btrfs-progs: cmds/inspect: add the ability to dump write intent
    bitmaps

 Makefile                         |   3 +-
 check/main.c                     |  17 +++
 check/mode-lowmem.c              |  22 ++++
 cmds/commands.h                  |   1 +
 cmds/inspect-dump-write-intent.c | 158 +++++++++++++++++++++++++++
 cmds/inspect.c                   |   1 +
 common/fsfeatures.c              |  19 ++++
 common/fsfeatures.h              |   2 +
 kernel-shared/ctree.h            |  40 ++++++-
 kernel-shared/disk-io.c          |  18 ++++
 kernel-shared/print-tree.c       | 104 +++++++++++++++++-
 kernel-shared/print-tree.h       |   1 +
 kernel-shared/volumes.c          |   4 +
 kernel-shared/write-intent.h     | 177 +++++++++++++++++++++++++++++++
 mkfs/common.c                    |  25 +++++
 mkfs/main.c                      |  14 +++
 16 files changed, 600 insertions(+), 6 deletions(-)
 create mode 100644 cmds/inspect-dump-write-intent.c
 create mode 100644 kernel-shared/write-intent.h

-- 
2.36.1