From 87a4c375995ed8eaa721b08825cf73d0b02b3145 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 31 Jul 2018 13:39:32 +0200 Subject: kconfig: include kernel/Kconfig.preempt from init/Kconfig Almost all architectures include it. Add a ARCH_NO_PREEMPT symbol to disable preempt support for alpha, hexagon, non-coldfire m68k and user mode Linux. Signed-off-by: Christoph Hellwig Signed-off-by: Masahiro Yamada --- kernel/Kconfig.preempt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/Kconfig.preempt') diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index 3f9c97419f02..cd1655122ec0 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -18,6 +18,7 @@ config PREEMPT_NONE config PREEMPT_VOLUNTARY bool "Voluntary Kernel Preemption (Desktop)" + depends on !ARCH_NO_PREEMPT help This option reduces the latency of the kernel by adding more "explicit preemption points" to the kernel code. These new @@ -35,6 +36,7 @@ config PREEMPT_VOLUNTARY config PREEMPT bool "Preemptible Kernel (Low-Latency Desktop)" + depends on !ARCH_NO_PREEMPT select PREEMPT_COUNT select UNINLINE_SPIN_UNLOCK if !ARCH_INLINE_SPIN_UNLOCK help -- cgit v1.2.3