From: Tejun Heo <tj@kernel.org>
Date: Fri, 13 Apr 2012 20:11:26 +0000 (-0700)
Subject: blkcg: kill blkio_list and replace blkio_list_lock with a mutex
X-Git-Tag: v3.5-rc1~42^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc0d6501a844392ab6ad419d7ca5af4693b6afac;p=pandora-kernel.git

blkcg: kill blkio_list and replace blkio_list_lock with a mutex

With blkio_policy[], blkio_list is redundant and hinders with
per-queue policy activation.  Remove it.  Also, replace
blkio_list_lock with a mutex blkcg_pol_mutex and let it protect the
whole [un]registration.

This is to prepare for per-queue policy activation and doesn't cause
any functional difference.

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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