[RFC][PATCH] memory cgroup enhancements updated [0/10] intro

[KAMEZAWA Hiroyuki]

These patches are for memory cgroup on my queue.
Just dumping before week-end.
I'd like to post these against the next -mm.

This is RFC again. 
Comments for previous version is reflected AMAP, thanks.

Some of patches has no change. Several pathces are new.

[1/10] fix try_to_free_mem_cgroup_pages() for NUMA (NEW)
[2/10] force_empty for drop all page_cgroup in empty cgroup. (REFLESHED)
[3/10] rememember page is charged as page cache (changed #define placement)
[4/10] rememember page is on active list (changed #define placement)
[5/10] per cpu memory cgroup accounting
[6/10] show per cpu memory cgroup accounting
[7/10] account failcnt for RSS and CACHE (NEW)
[8/10] add pre_destroy handler for cgroup (NEW)
[9/10] do force_empty at rmdir() implicitly (NEW)
[10/10] NUMA-aware accounting. (NEW)

Any comments are welcome.

Thanks,
-Kame