The really interesting commit is
btrfs: don't spin in shrink_delalloc if there is nothing to free
which fixes hogs on ENOSPC for me.
The rest of patches are cleanup.
Change since v2:
- Rebased against 2.6.39
Change since v1:
- Added Josef's Reviewed-by
- Fixed my MTA and patch numbering
Thanks!
P.S.:
It's also interesting to note, that 'shrink_delalloc' tries
to mess with 'bytes_reserved' (which are metadata reservation
right?)
The more I look at 'bytes_reserved' management paths the more I
think 'shrink_delalloc' should not touch them.
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