Series of patches, originally by Dave Chinner. This series
of 18 patches is unfinished and needs a new owner - the
feature partially implements pluggable allocation policies
for XFS.

A fairly substantial architectural write-up with community
debate/feedback on the design would be appropriate before
embarking on this. Tarball attached for the following:

01/18 xfs-fix-buf-trace
02/18 xfs-kconfig-debug
03/18 xfs-ap-inode-ag-hooks
04/18 xfs-ap-inode-agi-search-hooks
05/18 xfs-ap-data-hooks
06/18 xfs-ap-data-ac-context
07/18 xfs-ap-make-it-work
08/18 xfs-ap-per-inode-policy
09/18 xfs-ap-policy-register
10/18 xfs-ap-per-fs-policy
11/18 xfs-ap-ioctl-interface
12/18 xfs-sysfs-mount-t
13/18 xfs-ap-kobj-core
14/18 xfs-ap-handle-growfs-past-1TB
15/18 xfs-ap-cleanup-data-fallback
16/18 xfs-ap-propagate-context
17/18 xfs-ap-fix-filestreams
18/18 xfs-ap-split-inode-policy-id