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authorTejun Heo <tj@kernel.org>2014-02-08 10:36:58 -0500
committerTejun Heo <tj@kernel.org>2014-02-08 10:36:58 -0500
commit3ed80a62bf959d34ebd4d553b026fbe7e6fbcc54 (patch)
tree3ec2ce050e41b056a8de66f24eac76dd2d5912e5 /block
parentaf6363374cbda5007e46efa99f7346efd4eea5fc (diff)
downloadlinux-3ed80a62bf959d34ebd4d553b026fbe7e6fbcc54.tar.gz
linux-3ed80a62bf959d34ebd4d553b026fbe7e6fbcc54.tar.xz
cgroup: drop module support
With module supported dropped from net_prio, no controller is using cgroup module support. None of actual resource controllers can be built as a module and we aren't gonna add new controllers which don't control resources. This patch drops module support from cgroup. * cgroup_[un]load_subsys() and cgroup_subsys->module removed. * As there's no point in distinguishing IS_BUILTIN() and IS_MODULE(), cgroup_subsys.h now uses IS_ENABLED() directly. * enum cgroup_subsys_id now exactly matches the list of enabled controllers as ordered in cgroup_subsys.h. * cgroup_subsys[] is now a contiguously occupied array. Size specification is no longer necessary and dropped. * for_each_builtin_subsys() is removed and for_each_subsys() is updated to not require any locking. * module ref handling is removed from rebind_subsystems(). * Module related comments dropped. v2: Rebased on top of fe1217c4f3f7 ("net: net_cls: move cgroupfs classid handling into core"). v3: Added {} around the if (need_forkexit_callback) block in cgroup_post_fork() for readability as suggested by Li. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'block')
-rw-r--r--block/blk-cgroup.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 4e491d9..660d419 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -914,7 +914,6 @@ struct cgroup_subsys blkio_subsys = {
.can_attach = blkcg_can_attach,
.subsys_id = blkio_subsys_id,
.base_cftypes = blkcg_files,
- .module = THIS_MODULE,
};
EXPORT_SYMBOL_GPL(blkio_subsys);