[PATCHSET v29.0 25/40] xfsprogs: inode-related repair fixes

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Hi all,

While doing QA of the online fsck code, I made a few observations:
First, nobody was checking that the di_onlink field is actually zero;
Second, that allocating a temporary file for repairs can fail (and
thus bring down the entire fs) if the inode cluster is corrupt; and
Third, that file link counts do not pin at ~0U to prevent integer
overflows.

This scattered patchset fixes those three problems.

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

This has been running on the djcloud for months with no problems.  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=inode-repair-improvements

xfsprogs git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=inode-repair-improvements
---
 include/xfs_inode.h    |    2 ++
 libxfs/util.c          |   24 ++++++++++++++++++++++++
 libxfs/xfs_format.h    |    6 ++++++
 libxfs/xfs_ialloc.c    |   40 ++++++++++++++++++++++++++++++++++++++++
 libxfs/xfs_inode_buf.c |    8 ++++++++
 mkfs/proto.c           |    4 ++--
 repair/incore_ino.c    |    3 ++-
 repair/phase6.c        |   10 +++++-----
 8 files changed, 89 insertions(+), 8 deletions(-)





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