From: Anton Blanchard <anton@samba.org>
From: Robert Love <rml@ximian.com>
arch/ppc64/Kconfig's entry for CONFIG_PREEMPT is missing the description
after the "bool" statement, so the entry does not show up.
Also, the help description mentions a restriction that is not [any longer]
true.
depends on DISCONTIGMEM
config PREEMPT
- bool
+ bool "Preemptible Kernel"
+ depends on BROKEN
help
This option reduces the latency of the kernel when reacting to
real-time or interactive events by allowing a low priority process to
be preempted even if it is in kernel mode executing a system call.
- Unfortunately the kernel code has some race conditions if both
- CONFIG_SMP and CONFIG_PREEMPT are enabled, so this option is
- currently disabled if you are building an SMP kernel.
Say Y here if you are building a kernel for a desktop, embedded
or real-time system. Say N if you are unsure.