[PATCHSET] xfs: LLM-inspired bug fixes, part 3

Hi all,

Here's a third batch of xfs fixes resulting from a LLaMma.  Mwa mwa
mwa...

If you're going to start using this code, I strongly recommend pulling
from my git trees, which are linked below.

With a bit of luck, this should all go splendidly.
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=llm-fixes-3
---
Commits in this patchset:
 * xfs: check cowextsize in xrep_inode_cowextsize
 * xfs: fix transaction block reservation in xrep_rtbitmap
 * xfs: rtsummary scrub should treat rtbitmap corruption errors as an xref error
 * xfs: zero i_nlink before repair puts inode on unlinked list
 * xfs: mark nonzero sb_gquotino as corrupt on metadir filesystems
 * xfs: don't livelock in scrub on a circular unlinked list
---
 fs/xfs/scrub/agheader.c        |   90 +++++++++++++++++++++++++++++-----------
 fs/xfs/scrub/agheader_repair.c |   17 +++++++-
 fs/xfs/scrub/inode_repair.c    |    2 -
 fs/xfs/scrub/nlinks_repair.c   |    7 +++
 fs/xfs/scrub/rtbitmap_repair.c |   46 ++++++++++++--------
 fs/xfs/scrub/rtsummary.c       |    2 -
 6 files changed, 117 insertions(+), 47 deletions(-)