Merge tag 'byteswap-for-linus-20121219' of git://git.infradead.org/users/dwmw2/byteswap

[sfrench/cifs-2.6.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index c31416b10586f5431c49b2971903299be0efc282..8e9e3246b2b4e0f1a0b2218f5e49a8cacecb24d2 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -80,6 +80,7 @@ config UPROBES
        bool "Transparent user-space probes (EXPERIMENTAL)"
        depends on UPROBE_EVENT && PERF_EVENTS
        default n
+       select PERCPU_RWSEM
        help
          Uprobes is the user-space counterpart to kprobes: they
          enable instrumentation applications (such as 'perf probe')
@@ -319,15 +320,16 @@ config SECCOMP_FILTER
 
          See Documentation/prctl/seccomp_filter.txt for details.
 
-config HAVE_RCU_USER_QS
+config HAVE_CONTEXT_TRACKING
        bool
        help
-         Provide kernel entry/exit hooks necessary for userspace
-         RCU extended quiescent state. Syscalls need to be wrapped inside
-         rcu_user_exit()-rcu_user_enter() through the slow path using
-         TIF_NOHZ flag. Exceptions handlers must be wrapped as well. Irqs
-         are already protected inside rcu_irq_enter/rcu_irq_exit() but
-         preemption or signal handling on irq exit still need to be protected.
+         Provide kernel/user boundaries probes necessary for subsystems
+         that need it, such as userspace RCU extended quiescent state.
+         Syscalls need to be wrapped inside user_exit()-user_enter() through
+         the slow path using TIF_NOHZ flag. Exceptions handlers must be
+         wrapped as well. Irqs are already protected inside
+         rcu_irq_enter/rcu_irq_exit() but preemption or signal handling on
+         irq exit still need to be protected.
 
 config HAVE_VIRT_CPU_ACCOUNTING
        bool
@@ -360,4 +362,18 @@ config MODULES_USE_ELF_REL
          Modules only use ELF REL relocations.  Modules with ELF RELA
          relocations will give an error.
 
+#
+# ABI hall of shame
+#
+config CLONE_BACKWARDS
+       bool
+       help
+         Architecture has tls passed as the 4th argument of clone(2),
+         not the 5th one.
+
+config CLONE_BACKWARDS2
+       bool
+       help
+         Architecture has the first two arguments of clone(2) swapped.
+
 source "kernel/gcov/Kconfig"