| Date | Fri, 20 Aug 2010 18:55:52 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [PATCH] memcg: towards I/O aware memcg v5 |
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This is v5.
Sorry for delaying...but I had time for resetting myself and..several changes are added. I think this version is simpler than v4.
Major changes from v4 is a) added kernel/cgroup.c hooks again. (for b) b) make RCU aware. previous version seems dangerous in an extreme case.
Then, codes are updated. Most of changes are related to RCU.
Patch brief view: 1. add hooks to kernel/cgroup.c for ID management. 2. use ID-array in memcg. 3. record ID to page_cgroup rather than pointer. 4. make update_file_mapped to be RCU aware routine instead of spinlock. 5. make update_file_mapped as general-purpose function.
Thanks, -Kame
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