From 9a9e8a26da4c2c5ddc60999bdea957935fb22b6b Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 19 Mar 2012 15:10:56 -0700
Subject: [PATCH] blkcg: add blkcg->id

Add 64bit unique id to blkcg.  This will be used by policies which
want blkcg identity test to tell whether the associated blkcg has
changed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Reading git-format-patch failed