cgroup: clean up the kernel configuration menu nomenclature

The config options for the different cgroup controllers use various
terms: resource controller, cgroup subsystem, etc. Simplify this to
"controller", which is clear enough in the cgroup context.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/init/Kconfig b/init/Kconfig
index c24b6f7..07086e7 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -941,23 +941,22 @@ menuconfig CGROUPS
 if CGROUPS
 
 config CGROUP_DEBUG
-       bool "Example debug cgroup subsystem"
+       bool "Example controller"
        default n
        help
-         This option enables a simple cgroup subsystem that
-         exports useful debugging information about the cgroups
-         framework.
+         This option enables a simple controller that exports
+         debugging information about the cgroups framework.
 
-         Say N if unsure.
+         Say N.
 
 config CGROUP_FREEZER
-       bool "Freezer cgroup subsystem"
+       bool "Freezer controller"
        help
          Provides a way to freeze and unfreeze all tasks in a
          cgroup.
 
 config CGROUP_PIDS
-       bool "PIDs cgroup subsystem"
+       bool "PIDs controller"
        help
          Provides enforcement of process number limits in the scope of a
          cgroup. Any attempt to fork more processes than is allowed in the
@@ -973,13 +972,13 @@ config CGROUP_PIDS
          attach to a cgroup.
 
 config CGROUP_DEVICE
-       bool "Device controller for cgroups"
+       bool "Device controller"
        help
-         Provides a cgroup implementing whitelists for devices which
-         a process in the cgroup can mknod or open.
+         Provides a cgroup controller implementing whitelists for
+         devices which a process in the cgroup can mknod or open.
 
 config CPUSETS
-       bool "Cpuset support"
+       bool "Cpuset controller"
        help
          This option will let you create and manage CPUSETs which
          allow dynamically partitioning a system into sets of CPUs and
@@ -994,41 +993,29 @@ config PROC_PID_CPUSET
        default y
 
 config CGROUP_CPUACCT
-       bool "Simple CPU accounting cgroup subsystem"
+       bool "Simple CPU accounting controller"
        help
-         Provides a simple Resource Controller for monitoring the
+         Provides a simple controller for monitoring the
          total CPU consumed by the tasks in a cgroup.
 
 config PAGE_COUNTER
        bool
 
 config MEMCG
-       bool "Memory Resource Controller for Control Groups"
+       bool "Memory controller"
        select PAGE_COUNTER
        select EVENTFD
        help
-         Provides a memory resource controller that manages both anonymous
-         memory and page cache. (See Documentation/cgroups/memory.txt)
+         Provides control over the memory footprint of tasks in a cgroup.
 
 config MEMCG_SWAP
-       bool "Memory Resource Controller Swap Extension"
+       bool "Swap controller"
        depends on MEMCG && SWAP
        help
-         Add swap management feature to memory resource controller. When you
-         enable this, you can limit mem+swap usage per cgroup. In other words,
-         when you disable this, memory resource controller has no cares to
-         usage of swap...a process can exhaust all of the swap. This extension
-         is useful when you want to avoid exhaustion swap but this itself
-         adds more overheads and consumes memory for remembering information.
-         Especially if you use 32bit system or small memory system, please
-         be careful about enabling this. When memory resource controller
-         is disabled by boot option, this will be automatically disabled and
-         there will be no overhead from this. Even when you set this config=y,
-         if boot option "swapaccount=0" is set, swap will not be accounted.
-         Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page
-         size is 4096bytes, 512k per 1Gbytes of swap.
+         Provides control over the swap space consumed by tasks in a cgroup.
+
 config MEMCG_SWAP_ENABLED
-       bool "Memory Resource Controller Swap Extension enabled by default"
+       bool "Swap controller enabled by default"
        depends on MEMCG_SWAP
        default y
        help
@@ -1053,12 +1040,12 @@ config MEMCG_KMEM
          will ever exhaust kernel resources alone.
 
 config CGROUP_HUGETLB
-       bool "HugeTLB Resource Controller for Control Groups"
+       bool "HugeTLB controller"
        depends on HUGETLB_PAGE
        select PAGE_COUNTER
        default n
        help
-         Provides a cgroup Resource Controller for HugeTLB pages.
+         Provides a cgroup controller for HugeTLB pages.
          When you enable this, you can put a per cgroup limit on HugeTLB usage.
          The limit is enforced during page fault. Since HugeTLB doesn't
          support page reclaim, enforcing the limit at page fault time implies
@@ -1069,17 +1056,17 @@ config CGROUP_HUGETLB
          that we cannot use the controller with huge page less than 3 pages.
 
 config CGROUP_PERF
-       bool "Enable perf_event per-cpu per-container group (cgroup) monitoring"
+       bool "Perf controller"
        depends on PERF_EVENTS && CGROUPS
        help
-         This option extends the per-cpu mode to restrict monitoring to
-         threads which belong to the cgroup specified and run on the
+         This option extends the perf per-cpu mode to restrict monitoring
+         to threads which belong to the cgroup specified and run on the
          designated cpu.
 
          Say N if unsure.
 
 menuconfig CGROUP_SCHED
-       bool "Group CPU scheduler"
+       bool "CPU controller"
        default n
        help
          This feature lets CPU scheduler recognize task groups and control CPU
@@ -1117,7 +1104,7 @@ config RT_GROUP_SCHED
 endif #CGROUP_SCHED
 
 config BLK_CGROUP
-       bool "Block IO controller"
+       bool "IO controller"
        depends on BLOCK
        default n
        ---help---
@@ -1139,7 +1126,7 @@ config BLK_CGROUP
        See Documentation/cgroups/blkio-controller.txt for more information.
 
 config DEBUG_BLK_CGROUP
-       bool "Enable Block IO controller debugging"
+       bool "IO controller debugging"
        depends on BLK_CGROUP
        default n
        ---help---