Re: [PATCH UPDATED2 11/11] blkcg: unify blkg's for blkcg policies

From: Tejun Heo
Date: Thu Feb 16 2012 - 17:43:04 EST


Hello,

On Wed, Feb 15, 2012 at 12:02:29PM -0500, Vivek Goyal wrote:
> - Cleanup in-place policy data update logic.
>
> - Do not kill all the groups upon one policy switch. Keep the group around
> and just kill the policy data of associated policy.
>
> - Get rid if locking complexity and rcu around group removal. Replace with
> double lock dancing stuff.

Yeap, just sent out this one and fix for stacking. I'll probably do
the in-place policy update thing next.

> - Fix the per cpu alloc stat alloc mess. This is anyway needed
> irrespective of cleanup.

I'll ping Andrew again on the mempool thing on more time.

Thanks.

--
tejun
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