Messages in this thread | | | Date | Mon, 1 Dec 2008 16:52:07 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | Re: [PATCH 0/3] cgroup id and scanning without cgroup_lock |
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On Mon, 1 Dec 2008 11:54:29 +0530 Balbir Singh <balbir@linux.vnet.ibm.com> wrote:
> * KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> [2008-12-01 14:59:07]: > > > This is a series of patches againse mmotm-Nov29 > > (passed easy test) > > > > Now, memcg supports hierarhcy. But walking cgroup tree in intellegent way > > with lock/unlock cgroup_mutex seems to have troubles rather than expected. > > And, I want to reduce the memory usage of swap_cgroup, which uses array of > > pointers. > > > > This patch series provides > > - cgroup_id per cgroup object. > > - lookup struct cgroup by cgroup_id > > - scan all cgroup under tree by cgroup_id. without mutex. > > - css_tryget() function. > > - fixes semantics of notify_on_release. (I think this is valid fix.) > > > > Many changes since v1. (But I wonder some more work may be neeeded.) > > > > BTW, I know there are some amount of patches against memcg are posted recently. > > If necessary, I'll prepare Weekly-update queue again (Wednesday) and > > picks all patches to linux-mm in my queue. > > > > Thanks for the offer, I've just come back from foss.in. I need to look > athe locking issue with cgroup_lock() reported and also review/test > the other patches. > Hmm, after reading mailing list again, it seems it's better to do some serialization. I'll pick up some and post a queue tomorrow.
Thanks, -Kame
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