diff options
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 34 |
1 files changed, 13 insertions, 21 deletions
diff --git a/init/Kconfig b/init/Kconfig index 9afb971497f4..058e3671fa11 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -470,7 +470,6 @@ choice config TREE_RCU bool "Tree-based hierarchical RCU" depends on !PREEMPT && SMP - select IRQ_WORK help This option selects the RCU implementation that is designed for very large SMP system with hundreds or @@ -480,7 +479,6 @@ config TREE_RCU config PREEMPT_RCU bool "Preemptible tree-based hierarchical RCU" depends on PREEMPT - select IRQ_WORK help This option selects the RCU implementation that is designed for very large SMP systems with hundreds or @@ -501,9 +499,17 @@ config TINY_RCU endchoice +config SRCU + bool + help + This option selects the sleepable version of RCU. This version + permits arbitrary sleeping or blocking within RCU read-side critical + sections. + config TASKS_RCU bool "Task_based RCU implementation using voluntary context switch" default n + select SRCU help This option enables a task-based RCU implementation that uses only voluntary context switch (not preemption!), idle, and @@ -668,9 +674,10 @@ config RCU_BOOST config RCU_KTHREAD_PRIO int "Real-time priority to use for RCU worker threads" - range 1 99 - depends on RCU_BOOST - default 1 + range 1 99 if RCU_BOOST + range 0 99 if !RCU_BOOST + default 1 if RCU_BOOST + default 0 if !RCU_BOOST help This option specifies the SCHED_FIFO priority value that will be assigned to the rcuc/n and rcub/n threads and is also the value @@ -1280,22 +1287,6 @@ source "usr/Kconfig" endif -config INIT_FALLBACK - bool "Fall back to defaults if init= parameter is bad" - default y - help - If enabled, the kernel will try the default init binaries if an - explicit request from the init= parameter fails. - - This can have unexpected effects. For example, booting - with init=/sbin/kiosk_app will run /sbin/init or even /bin/sh - if /sbin/kiosk_app cannot be executed. - - The default value of Y is consistent with historical behavior. - Selecting N is likely to be more appropriate for most uses, - especially on kiosks and on kernels that are intended to be - run under the control of a script. - config CC_OPTIMIZE_FOR_SIZE bool "Optimize for size" help @@ -1595,6 +1586,7 @@ config PERF_EVENTS depends on HAVE_PERF_EVENTS select ANON_INODES select IRQ_WORK + select SRCU help Enable kernel support for various performance events provided by software and hardware. |