Re: [PATCHSET] blkcg: accumulated blkcg updates

From: Tejun Heo
Date: Wed Feb 22 2012 - 17:04:18 EST


Hello,

On Wed, Feb 22, 2012 at 02:34:29PM -0500, Vivek Goyal wrote:
> This series looks good to me. We just need two more pieces which need
> to be pushed along with this series.
>
> - Do not cleanup all blkg upon policy change. Just reclaim policy
> data/blkg which belong to policy.
>
> - per cpu stat allocation from async context.

Yeah, I'm getting to this now. Two more things I wanna do are

- Moving stats and configurations to blkg policies instead of putting
them in blk-cgroup.c and then pipe to cgroup policies. This will
require updates to cgroup to allow live removal / addition of cgroup
files on existing cgroup directories. Should be doable but I'm a
bit skeptical cgroup is implementing proper sever mechanism on files
and if not we're gonna have to implement that first.

- Make enabled policies per-queue.

Thanks.

--
tejun
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