From 3ed80a62bf959d34ebd4d553b026fbe7e6fbcc54 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 8 Feb 2014 10:36:58 -0500 Subject: 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 Acked-by: Li Zefan --- include/linux/cgroup_subsys.h | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'include/linux/cgroup_subsys.h') 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 /* -- cgit v1.2.3