| Date | Tue, 8 Jan 2013 11:58:53 -0500 | From | Vivek Goyal <> | Subject | Re: [PATCH 17/24] blkcg: implement blkcg_policy->on/offline_pd_fn() and blkcg_gq->online |
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On Fri, Dec 28, 2012 at 12:35:39PM -0800, Tejun Heo wrote: > Add two blkcg_policy methods, ->online_pd_fn() and ->offline_pd_fn(), > which are invoked as the policy_data gets activated and deactivated > while holding both blkcg and q locks. > > Also, add blkcg_gq->online bool, which is set and cleared as the > blkcg_gq gets activated and deactivated. This flag also is toggled > while holding both blkcg and q locks. > > These will be used to implement hierarchical stats. > > Signed-off-by: Tejun Heo <tj@kernel.org> > ---
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Vivek
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