From: Tejun Heo <tj@kernel.org>
Date: Tue, 18 Nov 2014 07:49:50 +0000 (-0500)
Subject: cgroup: separate out cgroup_calc_child_subsys_mask() from cgroup_refresh_child_subsys... 
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~114^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f060deb5c5107486c5dadd5c715b3693d381e0a;p=pandora-kernel.git

cgroup: separate out cgroup_calc_child_subsys_mask() from cgroup_refresh_child_subsys_mask()

cgroup_refresh_child_subsys_mask() calculates and updates the
effective @cgrp->child_subsys_maks according to the current
@cgrp->subtree_control.  Separate out the calculation part into
cgroup_calc_child_subsys_mask().  This will be used to fix a bug in
the async css offline wait logic.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Zefan Li <lizefan@huawei.com>
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