This patchset can be fetch from github:
https://github.com/adam900710/btrfs-progs/tree/dev_extents_check
Hans van Kranenburg reported a case where btrfs DUP chunk allocator
could allocate invalid dev extents, either overlaps with existing dev
extents or beyond device boundary.
This patchset enhances the btrfs-progs side to detect such problems.
With hand crafted test image for it.
Qu Wenruo (5):
btrfs-progs: lowmem check: Add check for overlapping dev extents
btrfs-progs: original check: Add ability to detect bad dev extents
btrfs-progs: lowmem check: Add dev_item check for used bytes and total
bytes
btrfs-progs: original check: Add dev_item check for used bytes and
total bytes
btrfs-progs: fsck-tests: Add test image for dev extents beyond device
boundary
check/main.c | 105 ++++++++++++++++++
check/mode-lowmem.c | 37 +++++-
.../over_dev_boundary.img.xz | Bin 0 -> 1640 bytes
tests/fsck-tests/036-bad-dev-extents/test.sh | 19 ++++
4 files changed, 159 insertions(+), 2 deletions(-)
create mode 100644
tests/fsck-tests/036-bad-dev-extents/over_dev_boundary.img.xz
create mode 100755 tests/fsck-tests/036-bad-dev-extents/test.sh
--
2.19.0
