[PATCH 0/4] xfs: inode transaction reservation fixups

[Brian Foster <bfoster@redhat.com>]

Hi all,

This series fixes up a few issues related to the xfs_inactive_ifree()
reservation overruns that have been reported on occasion. Patch 1 is a
small fixup to include a bit more data in overrun dumps, patch 2 fixes
an old inode free reservation bug, patch 3 fixes the actual overrun by
implementing an agfl fixup limit and patch 4 is some refactoring of
inode transactions that fell out of discussions on how to address the
problem [1]. 

Patches 1-3 survive an xfstests run and a couple iterations (so far) of
the workload that has consistently reproduced the overrun. I plan to run
the latter test a bit longer and repeat with patch 4 included. Note that
patch 4 is RFC and compile tested only atm.

Thoughts, reviews, flames appreciated.

Brian

[1] https://marc.info/?l=linux-xfs&m=151127676203410&w=2

Brian Foster (4):
  xfs: print transaction log reservation on overrun
  xfs: include inobt buffers in ifree tx log reservation
  xfs: amortize agfl block frees across multiple transactions
  xfs: include an allocfree res for inobt modifications

 fs/xfs/libxfs/xfs_alloc.c      | 15 ++++---
 fs/xfs/libxfs/xfs_trans_resv.c | 93 +++++++++++++++++++++---------------------
 fs/xfs/xfs_log.c               |  4 +-
 3 files changed, 60 insertions(+), 52 deletions(-)

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2.13.6