Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6

[pandora-kernel.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index 1150510..dc24dec 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -394,6 +394,7 @@ endchoice
 
 config BSD_PROCESS_ACCT
        bool "BSD Process Accounting"
+       depends on MULTIUSER
        help
          If you say Y here, a user level program will be able to instruct the
          kernel (via a special system call) to write process accounting
@@ -420,6 +421,7 @@ config BSD_PROCESS_ACCT_V3
 config TASKSTATS
        bool "Export task/process statistics through netlink"
        depends on NET
+       depends on MULTIUSER
        default n
        help
          Export selected statistics for tasks/processes through the
@@ -791,6 +793,19 @@ config RCU_NOCB_CPU_ALL
 
 endchoice
 
+config RCU_EXPEDITE_BOOT
+       bool
+       default n
+       help
+         This option enables expedited grace periods at boot time,
+         as if rcu_expedite_gp() had been invoked early in boot.
+         The corresponding rcu_unexpedite_gp() is invoked from
+         rcu_end_inkernel_boot(), which is intended to be invoked
+         at the end of the kernel-only boot sequence, just before
+         init is exec'ed.
+
+         Accept the default if unsure.
+
 endmenu # "RCU Subsystem"
 
 config BUILD_BIN2C
@@ -1141,6 +1156,7 @@ config CHECKPOINT_RESTORE
 
 menuconfig NAMESPACES
        bool "Namespaces support" if EXPERT
+       depends on MULTIUSER
        default !EXPERT
        help
          Provides the way to make tasks work with different objects using
@@ -1337,11 +1353,25 @@ menuconfig EXPERT
 
 config UID16
        bool "Enable 16-bit UID system calls" if EXPERT
-       depends on HAVE_UID16
+       depends on HAVE_UID16 && MULTIUSER
        default y
        help
          This enables the legacy 16-bit UID syscall wrappers.
 
+config MULTIUSER
+       bool "Multiple users, groups and capabilities support" if EXPERT
+       default y
+       help
+         This option enables support for non-root users, groups and
+         capabilities.
+
+         If you say N here, all processes will run with UID 0, GID 0, and all
+         possible capabilities.  Saying N here also compiles out support for
+         system calls related to UIDs, GIDs, and capabilities, such as setuid,
+         setgid, and capset.
+
+         If unsure, say Y here.
+
 config SGETMASK_SYSCALL
        bool "sgetmask/ssetmask syscalls support" if EXPERT
        def_bool PARISC || MN10300 || BLACKFIN || M68K || PPC || MIPS || X86 || SPARC || CRIS || MICROBLAZE || SUPERH
@@ -1507,7 +1537,7 @@ config EVENTFD
 
 # syscall, maps, verifier
 config BPF_SYSCALL
-       bool "Enable bpf() system call" if EXPERT
+       bool "Enable bpf() system call"
        select ANON_INODES
        select BPF
        default n