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authorTejun Heo <tj@kernel.org>2014-02-08 19:36:58 +0400
committerTejun Heo <tj@kernel.org>2014-02-08 19:36:58 +0400
commit3ed80a62bf959d34ebd4d553b026fbe7e6fbcc54 (patch)
tree3ec2ce050e41b056a8de66f24eac76dd2d5912e5 /include/linux/cgroup_subsys.h
parentaf6363374cbda5007e46efa99f7346efd4eea5fc (diff)
downloadlinux-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 'include/linux/cgroup_subsys.h')
-rw-r--r--include/linux/cgroup_subsys.h24
1 files changed, 12 insertions, 12 deletions
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index 7b99d717411d..11c42f6a25a8 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -3,51 +3,51 @@
*
* DO NOT ADD ANY SUBSYSTEM WITHOUT EXPLICIT ACKS FROM CGROUP MAINTAINERS.
*/
-#if IS_SUBSYS_ENABLED(CONFIG_CPUSETS)
+#if IS_ENABLED(CONFIG_CPUSETS)
SUBSYS(cpuset)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_DEBUG)
+#if IS_ENABLED(CONFIG_CGROUP_DEBUG)
SUBSYS(debug)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_SCHED)
+#if IS_ENABLED(CONFIG_CGROUP_SCHED)
SUBSYS(cpu_cgroup)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_CPUACCT)
+#if IS_ENABLED(CONFIG_CGROUP_CPUACCT)
SUBSYS(cpuacct)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_MEMCG)
+#if IS_ENABLED(CONFIG_MEMCG)
SUBSYS(mem_cgroup)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_DEVICE)
+#if IS_ENABLED(CONFIG_CGROUP_DEVICE)
SUBSYS(devices)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_FREEZER)
+#if IS_ENABLED(CONFIG_CGROUP_FREEZER)
SUBSYS(freezer)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_NET_CLASSID)
+#if IS_ENABLED(CONFIG_CGROUP_NET_CLASSID)
SUBSYS(net_cls)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_BLK_CGROUP)
+#if IS_ENABLED(CONFIG_BLK_CGROUP)
SUBSYS(blkio)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_PERF)
+#if IS_ENABLED(CONFIG_CGROUP_PERF)
SUBSYS(perf)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_NET_PRIO)
+#if IS_ENABLED(CONFIG_CGROUP_NET_PRIO)
SUBSYS(net_prio)
#endif
-#if IS_SUBSYS_ENABLED(CONFIG_CGROUP_HUGETLB)
+#if IS_ENABLED(CONFIG_CGROUP_HUGETLB)
SUBSYS(hugetlb)
#endif
/*