X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=init%2FKconfig;h=7fccf09bb95ad8adeb929829dc1bb624c84ffc82;hb=7cfb5f9aaec6f0fc45ff323841e6d62f67e7ffad;hp=824d48cb67bfd49366ed7fdfa70346f7ac67e005;hpb=25f666300625d894ebe04bac2b4b3aadb907c861;p=linux-2.6

diff --git a/init/Kconfig b/init/Kconfig
index 824d48cb67..7fccf09bb9 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -311,25 +311,36 @@ config CPUSETS
 
 	  Say N if unsure.
 
-config FAIR_GROUP_SCHED
-	bool "Fair group CPU scheduler"
+config GROUP_SCHED
+	bool "Group CPU scheduler"
 	default y
 	help
 	  This feature lets CPU scheduler recognize task groups and control CPU
 	  bandwidth allocation to such task groups.
 
+config FAIR_GROUP_SCHED
+	bool "Group scheduling for SCHED_OTHER"
+	depends on GROUP_SCHED
+	default y
+
+config RT_GROUP_SCHED
+	bool "Group scheduling for SCHED_RR/FIFO"
+	depends on EXPERIMENTAL
+	depends on GROUP_SCHED
+	default n
+
 choice
-	depends on FAIR_GROUP_SCHED
+	depends on GROUP_SCHED
 	prompt "Basis for grouping tasks"
-	default FAIR_USER_SCHED
+	default USER_SCHED
 
-config FAIR_USER_SCHED
+config USER_SCHED
 	bool "user id"
 	help
 	  This option will choose userid as the basis for grouping
 	  tasks, thus providing equal CPU bandwidth to each user.
 
-config FAIR_CGROUP_SCHED
+config CGROUP_SCHED
 	bool "Control groups"
  	depends on CGROUPS
  	help
@@ -355,10 +366,29 @@ config RESOURCE_COUNTERS
           infrastructure that works with cgroups
 	depends on CGROUPS
 
+config CGROUP_MEM_RES_CTLR
+	bool "Memory Resource Controller for Control Groups"
+	depends on CGROUPS && RESOURCE_COUNTERS
+	help
+	  Provides a memory resource controller that manages both page cache and
+	  RSS memory.
+
+	  Note that setting this option increases fixed memory overhead
+	  associated with each page of memory in the system by 4/8 bytes
+	  and also increases cache misses because struct page on many 64bit
+	  systems will not fit into a single cache line anymore.
+
+	  Only enable when you're ok with these trade offs and really
+	  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
@@ -371,17 +401,11 @@ 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.
-
-config CGROUP_MEM_CONT
-	bool "Memory controller for cgroups"
-	depends on CGROUPS && RESOURCE_COUNTERS
-	help
-	  Provides a memory controller that manages both page cache and
-	  RSS memory.
+	  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"
@@ -739,7 +763,7 @@ endmenu		# General setup
 config SLABINFO
 	bool
 	depends on PROC_FS
-	depends on SLAB || SLUB
+	depends on SLAB || SLUB_DEBUG
 	default y
 
 config RT_MUTEXES
@@ -841,38 +865,10 @@ 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.