On 12.08.19 г. 9:34 ч., Qu Wenruo wrote: > Kernel is going to reject invalid root generation. > > Consider the existing checks are causing some error reports, we should > handle such problem in advance, so that's the patchset is going to do, > check and repair such invalid root generation. > > Changelog: > v2: > - Use existing recow_extent_buffer() to do the repair > > v2.1: > - Add beacon file to allow lowmem mode repair for newly added test case. > > Qu Wenruo (3): > btrfs-progs: check/lowmem: Check and repair root generation > btrfs-progs: check/original: Check and repair root item geneartion > btrfs-progs: fsck-tests: Add test case for invalid root generation > > check/main.c | 57 +++++++----------- > check/mode-common.c | 36 +++++++++++ > check/mode-common.h | 1 + > check/mode-lowmem.c | 17 ++++++ > check/mode-lowmem.h | 1 + > .../.lowmem_repairable | 0 > .../default_case.img | Bin 0 -> 3072 bytes > 7 files changed, 76 insertions(+), 36 deletions(-) > create mode 100644 tests/fsck-tests/041-invalid-root-generation/.lowmem_repairable > create mode 100644 tests/fsck-tests/041-invalid-root-generation/default_case.img > The patchset looks rather trivial - just use recow_extent_buffer when you find a root with larger generation. So: Reviewed-by: Nikolay Borisov <nborisov@xxxxxxxx>
