[PATCH 0/4] btrfs-progs: check: add the ability to repair extent item generation corruption

[Qu Wenruo <wqu@suse.com>]

Although we have introduced the check ability to detect bad extent item
generation, there is no repair ability.

I thought it would be rare to hit, but real world cases prove I'm a
total idiot.

So this patchset will add the ability to repair, for both lowmem mode
and original mode, along with enhanced test images.

There is also a bug fix for original mode, which fails to detect such
problem if it's a tree block.

Qu Wenruo (4):
  btrfs-progs: check/lowmem: add the ability to repair extent item
    generation
  btrfs-progs: check/original: don't reset extent generation for
    check_block()
  btrfs-progs: check/original: add the ability to repair extent item
    generation
  btrfs-progs: tests/fsck: enhance invalid extent item geneartion test
    cases

 check/main.c                                  |  77 ++++++++++++++-
 check/mode-common.c                           |  59 ++++++++++++
 check/mode-common.h                           |   3 +
 check/mode-lowmem.c                           |  89 ++++++++++++++++--
 ...xz => bad_extent_item_gen_for_data.img.xz} | Bin
 .../bad_extent_item_gen_for_tree_block.img.xz | Bin 0 -> 1804 bytes
 .../test.sh                                   |  19 ----
 7 files changed, 216 insertions(+), 31 deletions(-)
 rename tests/fsck-tests/044-invalid-extent-item-generation/{bad_extent_item_gen.img.xz => bad_extent_item_gen_for_data.img.xz} (100%)
 create mode 100644 tests/fsck-tests/044-invalid-extent-item-generation/bad_extent_item_gen_for_tree_block.img.xz
 delete mode 100755 tests/fsck-tests/044-invalid-extent-item-generation/test.sh

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2.28.0