[PATCH v2 0/5] xfs: basic cow fork speculative preallocation

[Brian Foster <bfoster@redhat.com>]

Hi all,

Here's v2 of the cow fork speculative prealloc patches. No major changes
here, as outlined below. Thoughts on any of this?

Brian

v2:
- Rebased to latest for-next.
- Dropped fiemap COW fork patch.
- Added Reviewed-by tags from previous series.
v1: http://www.spinics.net/lists/linux-xfs/msg02466.html
- Rebase onto for-next (new iext lookup helpers).
- Split off speculative prealloc refactor patches into separate series.
- Prepend the COW fork fiemap patch.
- Create xfs_iomap_search_extents() helper for data/COW fork extent
  lookup.
- Reuse xfs_iomap_prealloc_size() to incorporate prealloc throttling.
- Added patch to reclaim cowblocks on write failure due to ENOSPC.
rfc: http://www.spinics.net/lists/linux-xfs/msg02152.html

Brian Foster (5):
  xfs: refactor iomap delalloc existing extent search into helper
  xfs: logically separate iomap range from allocation range
  xfs: reuse iomap delalloc code for COW fork reservation
  xfs: free cowblocks and retry on buffered write ENOSPC
  xfs: implement basic COW fork speculative preallocation

 fs/xfs/xfs_file.c  |   1 +
 fs/xfs/xfs_iomap.c | 270 +++++++++++++++++++++++++++++++++++++----------------
 2 files changed, 193 insertions(+), 78 deletions(-)

-- 
2.7.4