[PATCHSET v26.0 0/5] xfs: online repair of AG btrees

Darrick J. Wong
2023-07-27T22:20:41Z

Hi all,

Now that we've spent a lot of time reworking common code in online fsck,
we're ready to start rebuilding the AG space btrees. This series
implements repair functions for the free space, inode, and refcount
btrees. Rebuilding the reverse mapping btree is much more intense and
is left for a subsequent patchset. The fstests counterpart of this
patchset implements stress testing of repair.

If you're going to start using this mess, you probably ought to just
pull from my git trees, which are linked below.

This is an extraordinary way to destroy everything. Enjoy!
Comments and questions are, as always, welcome.

--D

kernel git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=repair-ag-btrees

xfsprogs git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=repair-ag-btrees

fstests git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfstests-dev.git/log/?h=repair-ag-btrees
---
fs/xfs/Makefile | 3
fs/xfs/libxfs/xfs_ag.h | 10
fs/xfs/libxfs/xfs_ag_resv.c | 2
fs/xfs/libxfs/xfs_alloc.c | 18 -
fs/xfs/libxfs/xfs_alloc.h | 2
fs/xfs/libxfs/xfs_alloc_btree.c | 13 -
fs/xfs/libxfs/xfs_btree.c | 26 +
fs/xfs/libxfs/xfs_btree.h | 2
fs/xfs/libxfs/xfs_ialloc.c | 41 +-
fs/xfs/libxfs/xfs_ialloc.h | 3
fs/xfs/libxfs/xfs_refcount.c | 18 -
fs/xfs/libxfs/xfs_refcount.h | 2
fs/xfs/libxfs/xfs_refcount_btree.c | 13 -
fs/xfs/libxfs/xfs_types.h | 7
fs/xfs/scrub/alloc.c | 14 -
fs/xfs/scrub/alloc_repair.c | 912 ++++++++++++++++++++++++++++++++++++
fs/xfs/scrub/common.c | 153 ++++++
fs/xfs/scrub/common.h | 22 +
fs/xfs/scrub/ialloc.c | 3
fs/xfs/scrub/ialloc_repair.c | 882 +++++++++++++++++++++++++++++++++++
fs/xfs/scrub/newbt.c | 45 ++
fs/xfs/scrub/newbt.h | 6
fs/xfs/scrub/refcount_repair.c | 796 +++++++++++++++++++++++++++++++
fs/xfs/scrub/repair.c | 128 +++++
fs/xfs/scrub/repair.h | 43 ++
fs/xfs/scrub/scrub.c | 22 +
fs/xfs/scrub/scrub.h | 9
fs/xfs/scrub/trace.h | 134 ++++-
fs/xfs/scrub/xfarray.h | 22 +
fs/xfs/xfs_extent_busy.c | 13 +
fs/xfs/xfs_extent_busy.h | 2
fs/xfs/xfs_icache.c | 38 --
fs/xfs/xfs_icache.h | 4
33 files changed, 3277 insertions(+), 131 deletions(-)
create mode 100644 fs/xfs/scrub/alloc_repair.c
create mode 100644 fs/xfs/scrub/ialloc_repair.c
create mode 100644 fs/xfs/scrub/refcount_repair.c