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[PATCH v6 00/18] xfs: sparse inode chunks

To: xfs@xxxxxxxxxxx
Subject: [PATCH v6 00/18] xfs: sparse inode chunks
From: Brian Foster <bfoster@xxxxxxxxxx>
Date: Mon, 2 Mar 2015 08:27:50 -0500
Delivered-to: xfs@xxxxxxxxxxx
Hi all,

Here's a v6 of sparse inode chunks. This fixes a bug on large block size
filesystems where an inode chunk was being incorrectly freed. The
problem was that patch 2 changed the previously implicit behavior of
never freeing an inode chunk on filesystems where the block size is
large enough for multiple chunks (e.g., bsize=64k, isize<=512). Patch 2
has been fixed to preserve original behavior.

There have also been some minor fixups throughout associated with a
rebase to the latest for-next. This includes killing some old sb logging
bits and passing mp to XFS_WANT_CORRUPTED_GOTO().


- Rebase to latest for-next (minor fixups).
- Fix corruption bug on multi-inode-chunk per block fs (patch 2).
v5: http://oss.sgi.com/archives/xfs/2015-02/msg00371.html
- Use XFS helpers for allocmask code instead of generic bitmap helpers.
v4: http://oss.sgi.com/archives/xfs/2015-02/msg00240.html
- Rename sb_spinoalignmt to sb_spino_align.
- Clean up error/warning messages.
- Use a union to differentiate old/new xfs_inobt_rec on-disk format.
  Refactor such that in-core record fields are always valid.
- Rename/move allocmap (bitmap) helper functions and provide extra
  helper for endian conv.
- Refactor sparse chunk allocation record management code.
- Clean up #ifdef and label usage for DEBUG mode sparse allocs.
- Split up and moved some generic, preparatory hunks earlier in series.
v3: http://oss.sgi.com/archives/xfs/2015-02/msg00110.html
- Rebase to latest for-next (bulkstat rework, data structure shuffling,
- Fix issparse helper logic.
- Update inode alignment model w/ spinodes enabled. All inode records
  are chunk size aligned, sparse allocations cluster size aligned (both
  enforced on mount).
- Reworked sparse inode record merge logic to coincide w/ new alignment
- Mark feature as experimental (warn on mount).
- Include and use block allocation agbno range limit to prevent
  allocation of invalid inode records.
- Add some DEBUG bits to improve sparse alloc. test coverage.
v2: http://oss.sgi.com/archives/xfs/2014-11/msg00007.html
- Use a manually set feature bit instead of dynamic based on the
  existence of sparse inode chunks.
- Add sb/mp fields for sparse alloc. granularity (use instead of cluster
- Undo xfs_inobt_insert() loop removal to avoid breakage of larger page
  size arches.
- Rename sparse record overlap helper and do XFS_LOOKUP_LE search.
- Use byte of pad space in inobt record for inode count field.
- Convert bitmap mgmt to use generic bitmap code.
- Add fs geometry bit for sparse inodes.
- Rebase to latest for-next (bulkstat refactor).
v1: http://oss.sgi.com/archives/xfs/2014-07/msg00355.html

Brian Foster (18):
  xfs: create individual inode alloc. helper
  xfs: update free inode record logic to support sparse inode records
  xfs: support min/max agbno args in block allocator
  xfs: add sparse inode chunk alignment superblock field
  xfs: use sparse chunk alignment for min. inode allocation requirement
  xfs: sparse inode chunks feature helpers and mount requirements
  xfs: add fs geometry bit for sparse inode chunks
  xfs: introduce inode record hole mask for sparse inode chunks
  xfs: use actual inode count for sparse records in bulkstat/inumbers
  xfs: pass inode count through ordered icreate log item
  xfs: handle sparse inode chunks in icreate log recovery
  xfs: helper to convert holemask to inode alloc. bitmap
  xfs: allocate sparse inode chunks on full chunk allocation failure
  xfs: randomly do sparse inode allocations in DEBUG mode
  xfs: filter out sparse regions from individual inode allocation
  xfs: only free allocated regions of inode chunks
  xfs: skip unallocated regions of inode chunks in xfs_ifree_cluster()
  xfs: enable sparse inode chunks for v5 superblocks

 fs/xfs/libxfs/xfs_alloc.c        |  42 ++-
 fs/xfs/libxfs/xfs_alloc.h        |   2 +
 fs/xfs/libxfs/xfs_format.h       |  48 +++-
 fs/xfs/libxfs/xfs_fs.h           |   1 +
 fs/xfs/libxfs/xfs_ialloc.c       | 541 +++++++++++++++++++++++++++++++++++----
 fs/xfs/libxfs/xfs_ialloc.h       |  12 +-
 fs/xfs/libxfs/xfs_ialloc_btree.c |  93 ++++++-
 fs/xfs/libxfs/xfs_ialloc_btree.h |  10 +
 fs/xfs/libxfs/xfs_sb.c           |  30 ++-
 fs/xfs/xfs_fsops.c               |   4 +-
 fs/xfs/xfs_inode.c               |  28 +-
 fs/xfs/xfs_itable.c              |  13 +-
 fs/xfs/xfs_log_recover.c         |  26 +-
 fs/xfs/xfs_mount.c               |  16 ++
 fs/xfs/xfs_mount.h               |   2 +
 fs/xfs/xfs_trace.h               |  47 ++++
 16 files changed, 829 insertions(+), 86 deletions(-)


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