From: Vivek Goyal <vgoyal@redhat.com>
Date: Thu, 3 Dec 2009 17:59:47 +0000 (-0500)
Subject: blkio: Take care of cgroup deletion and cfq group reference counting
X-Git-Tag: v2.6.33-rc1~379^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1c3576961847da26c91b1e97f226bb66be5fa3f;p=pandora-kernel.git

blkio: Take care of cgroup deletion and cfq group reference counting

o One can choose to change elevator or delete a cgroup. Implement group
  reference counting so that both elevator exit and cgroup deletion can
  take place gracefully.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Nauman Rafique <nauman@google.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

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