[PATCH 0/5] btrfs-progs: add detection for unexpected file extents

There is a kernel patch (*) which mentioned a corrupted fs image where
there is at least one file extent item which shouldn't exist, as the
inode is not a symlink or regular file.

It turns out btrfs check can not detect such case.

The first 3 patches introduce the ability to generate such image.

The 4th patch adds the detection ability, and the last one is the test
case.

*: https://lore.kernel.org/linux-btrfs/[email protected]/


Qu Wenruo (5):
  btrfs-progs: corrupt-block: allow inode corruption to use --value
    option
  btrfs-progs: corrupt-block: allow dir item corruption to use --value
    option
  btrfs-progs: corrupt-block: allow corrupting dir item flags
  btrfs-progs: check: detect invalid file extent items
  btrfs-progs: fsck-test: add a test case for unexpected file extent
    items

 btrfs-corrupt-block.c                         |  68 ++++++++++--------
 check/main.c                                  |   5 ++
 check/mode-lowmem.c                           |  26 ++++---
 .../075-blk-inode-with-data/default.img.xz    | Bin 0 -> 2104 bytes
 .../075-blk-inode-with-data/test.sh           |  16 +++++
 5 files changed, 77 insertions(+), 38 deletions(-)
 create mode 100644 tests/fsck-tests/075-blk-inode-with-data/default.img.xz
 create mode 100755 tests/fsck-tests/075-blk-inode-with-data/test.sh

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2.54.0