[RFC 0/5] Memory controller soft limit introduction (v3)

[Balbir Singh <balbir@linux.vnet.ibm.com>]

This patchset implements the basic changes required to implement soft limits
in the memory controller. A soft limit is a variation of the currently
supported hard limit feature. A memory cgroup can exceed it's soft limit
provided there is no contention for memory.

These patches were tested on a x86_64 box, by running a programs in parallel,
and checking their behaviour for various soft limit values.

These patches were developed on top of 2.6.26-rc5-mm3. Comments, suggestions,
criticism are all welcome!

A previous version of the patch can be found at

http://kerneltrap.org/mailarchive/linux-kernel/2008/2/19/904114

TODOs:

1. Distribute the excessive (non-contended) resources between groups
   in the ratio of their soft limits
2. Merge with KAMEZAWA's and YAMAMOTO's water mark and background reclaim
   patches in the long-term

series
------
memory-controller-soft-limit-add-documentation.patch
prio_heap_delete_max.patch
prio_heap_replace_leaf.patch
memory-controller-soft-limit-res-counter-updates.patch
memory-controller-soft-limit-reclaim-on-contention.patch

-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL

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