Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[karo-tx-linux.git] / arch / Kconfig

diff --git a/arch/Kconfig b/arch/Kconfig
index 101c31a4744b1081b5e2aad52ff5abc7ba479b7f..a62965d057f6d8b5a94baf8bf14ecc11ecef5491 100644 (file)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -222,6 +222,19 @@ config HAVE_PERF_EVENTS_NMI
          subsystem.  Also has support for calculating CPU cycle events
          to determine how many clock cycles in a given period.
 
+config HAVE_PERF_REGS
+       bool
+       help
+         Support selective register dumps for perf events. This includes
+         bit-mapping of each registers and a unique architecture id.
+
+config HAVE_PERF_USER_STACK_DUMP
+       bool
+       help
+         Support user stack dumps for perf event samples. This needs
+         access to the user stack pointer which is not unified across
+         architectures.
+
 config HAVE_ARCH_JUMP_LABEL
        bool
 
@@ -281,6 +294,16 @@ config SECCOMP_FILTER
 
          See Documentation/prctl/seccomp_filter.txt for details.
 
+config HAVE_RCU_USER_QS
+       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.
+
 config HAVE_VIRT_CPU_ACCOUNTING
        bool