tree c49f85e03d11296683ed938864bd823cdeaa614f
parent d02f7aa8dce8166dbbc515ce393912aa45e6b8a6
author Tejun Heo <tj@kernel.org> 1357747512 -0800
committer Tejun Heo <tj@kernel.org> 1357747512 -0800

blkcg: add blkg_policy_data->plid

Add pd->plid so that the policy a pd belongs to can be identified
easily.  This will be used to implement hierarchical blkg_[rw]stats.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>