From: Tejun Heo Date: Tue, 15 Jul 2014 15:05:09 +0000 (-0400) Subject: cgroup: replace cgroup_add_cftypes() with cgroup_add_legacy_cftypes() X-Git-Tag: omap-for-v3.17/fixes-against-rc2~190^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2cf669a58dc08fa065a8bd0dca866c0e6cb358cc;p=pandora-kernel.git cgroup: replace cgroup_add_cftypes() with cgroup_add_legacy_cftypes() Currently, cftypes added by cgroup_add_cftypes() are used for both the unified default hierarchy and legacy ones and subsystems can mark each file with either CFTYPE_ONLY_ON_DFL or CFTYPE_INSANE if it has to appear only on one of them. This is quite hairy and error-prone. Also, we may end up exposing interface files to the default hierarchy without thinking it through. cgroup_subsys will grow two separate cftype addition functions and apply each only on the hierarchies of the matching type. This will allow organizing cftypes in a lot clearer way and encourage subsystems to scrutinize the interface which is being exposed in the new default hierarchy. In preparation, this patch adds cgroup_add_legacy_cftypes() which currently is a simple wrapper around cgroup_add_cftypes() and replaces all cgroup_add_cftypes() usages with it. While at it, this patch drops a completely spurious return from __hugetlb_cgroup_file_init(). This patch doesn't introduce any functional differences. Signed-off-by: Tejun Heo Acked-by: Neil Horman Acked-by: Li Zefan Cc: Johannes Weiner Cc: Michal Hocko Cc: Aneesh Kumar K.V --- Reading git-diff-tree failed