mm: rotate_reclaimable_page() cleanup

[linux-2.6-omap-h63xx.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index 442850b984bef50f813379479c119b1270cac4eb..ba3a389fab94dcef61341973de66ae12992892cf 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -328,6 +328,13 @@ config RT_GROUP_SCHED
        depends on EXPERIMENTAL
        depends on GROUP_SCHED
        default n
+       help
+         This feature lets you explicitly allocate real CPU bandwidth
+         to users or control groups (depending on the "Basis for grouping tasks"
+         setting below. If enabled, it will also make it impossible to
+         schedule realtime tasks for non-root users until you allocate
+         realtime bandwidth for them.
+         See Documentation/sched-rt-group.txt for more information.
 
 choice
        depends on GROUP_SCHED
@@ -382,9 +389,13 @@ config CGROUP_MEM_RES_CTLR
          sure you need the memory resource controller.
 
 config SYSFS_DEPRECATED
+       bool
+
+config SYSFS_DEPRECATED_V2
        bool "Create deprecated sysfs files"
        depends on SYSFS
        default y
+       select SYSFS_DEPRECATED
        help
          This option creates deprecated symlinks such as the
          "device"-link, the <subsystem>:<name>-link, and the
@@ -397,10 +408,11 @@ config SYSFS_DEPRECATED
 
          If enabled, this option will also move any device structures
          that belong to a class, back into the /sys/class hierarchy, in
-         order to support older versions of udev.
+         order to support older versions of udev and some userspace
+         programs.
 
-         If you are using a distro that was released in 2006 or later,
-         it should be safe to say N here.
+         If you are using a distro with the most recent userspace
+         packages, it should be safe to say N here.
 
 config PROC_PID_CPUSET
        bool "Include legacy /proc/<pid>/cpuset file"
@@ -758,7 +770,7 @@ endmenu             # General setup
 config SLABINFO
        bool
        depends on PROC_FS
-       depends on SLAB || SLUB
+       depends on SLAB || SLUB_DEBUG
        default y
 
 config RT_MUTEXES
@@ -860,38 +872,10 @@ source "block/Kconfig"
 config PREEMPT_NOTIFIERS
        bool
 
-choice
-       prompt "RCU implementation type:"
-       default CLASSIC_RCU
-       help
-         This allows you to choose either the classic RCU implementation
-         that is designed for best read-side performance on non-realtime
-         systems, or the preemptible RCU implementation for best latency
-         on realtime systems.  Note that some kernel preemption modes
-         will restrict your choice.
-
-         Select the default if you are unsure.
-
 config CLASSIC_RCU
-       bool "Classic RCU"
+       def_bool !PREEMPT_RCU
        help
          This option selects the classic RCU implementation that is
          designed for best read-side performance on non-realtime
-         systems.
-
-         Say Y if you are unsure.
-
-config PREEMPT_RCU
-       bool "Preemptible RCU"
-       depends on PREEMPT
-       help
-         This option reduces the latency of the kernel by making certain
-         RCU sections preemptible. Normally RCU code is non-preemptible, if
-         this option is selected then read-only RCU sections become
-         preemptible. This helps latency, but may expose bugs due to
-         now-naive assumptions about each RCU read-side critical section
-         remaining on a given CPU through its execution.
-
-         Say N if you are unsure.
-
-endchoice
+         systems.  Classic RCU is the default.  Note that the
+         PREEMPT_RCU symbol is used to select/deselect this option.