From: Tejun Heo <tj@kernel.org>
Date: Wed, 9 Jan 2013 16:05:12 +0000 (-0800)
Subject: blkcg: add blkg_policy_data->plid
X-Git-Tag: v3.9-rc1~44^2~12^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b276a876a014c5fa58a16f247c0933f6c42112e3;p=pandora-kernel.git

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>
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