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Subject[PATCH 0/3] prio_tree generalization
This patch set for 2.6.10-rc3-bk10 (*) generalizes the prio_tree
code such that other subsystems than just VMA can use it.

(*) I'm not sure which tree is the most useful base for this.
Should I use 2.6.10-rc3-mm* instead of -bk* ? (Or is it
already too late for 2.6.10 anyway ?)

While there are currently no other in-tree users than VMA,
the prio_tree algorithm will be useful for detecting overlapping
disk IO requests, which is a prerequisite for efficient handling
of barriers, which - besides being a good idea in general - in
turn is a prerequisite for useful disk IO priorities.

The three patches that follow are incremental and must be applied
in the order specified.

- Werner

/ Werner Almesberger, Buenos Aires, Argentina /
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