mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 07:34:06 +08:00
43a0a2a7d7
RCU's debugging Kconfig options are in the unintuitive location lib/Kconfig.debug, and there are enough of them that it would be good for them to be more centralized. This commit therefore extracts RCU's Kconfig options from init/Kconfig into a new kernel/rcu/Kconfig.debug file. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
83 lines
2.2 KiB
Plaintext
83 lines
2.2 KiB
Plaintext
#
|
|
# RCU-related debugging configuration options
|
|
#
|
|
|
|
menu "RCU Debugging"
|
|
|
|
config PROVE_RCU
|
|
def_bool PROVE_LOCKING
|
|
|
|
config TORTURE_TEST
|
|
tristate
|
|
default n
|
|
|
|
config RCU_PERF_TEST
|
|
tristate "performance tests for RCU"
|
|
depends on DEBUG_KERNEL
|
|
select TORTURE_TEST
|
|
select SRCU
|
|
select TASKS_RCU
|
|
default n
|
|
help
|
|
This option provides a kernel module that runs performance
|
|
tests on the RCU infrastructure. The kernel module may be built
|
|
after the fact on the running kernel to be tested, if desired.
|
|
|
|
Say Y here if you want RCU performance tests to be built into
|
|
the kernel.
|
|
Say M if you want the RCU performance tests to build as a module.
|
|
Say N if you are unsure.
|
|
|
|
config RCU_TORTURE_TEST
|
|
tristate "torture tests for RCU"
|
|
depends on DEBUG_KERNEL
|
|
select TORTURE_TEST
|
|
select SRCU
|
|
select TASKS_RCU
|
|
default n
|
|
help
|
|
This option provides a kernel module that runs torture tests
|
|
on the RCU infrastructure. The kernel module may be built
|
|
after the fact on the running kernel to be tested, if desired.
|
|
|
|
Say Y here if you want RCU torture tests to be built into
|
|
the kernel.
|
|
Say M if you want the RCU torture tests to build as a module.
|
|
Say N if you are unsure.
|
|
|
|
config RCU_CPU_STALL_TIMEOUT
|
|
int "RCU CPU stall timeout in seconds"
|
|
depends on RCU_STALL_COMMON
|
|
range 3 300
|
|
default 21
|
|
help
|
|
If a given RCU grace period extends more than the specified
|
|
number of seconds, a CPU stall warning is printed. If the
|
|
RCU grace period persists, additional CPU stall warnings are
|
|
printed at more widely spaced intervals.
|
|
|
|
config RCU_TRACE
|
|
bool "Enable tracing for RCU"
|
|
depends on DEBUG_KERNEL
|
|
default y if TREE_RCU
|
|
select TRACE_CLOCK
|
|
help
|
|
This option enables additional tracepoints for ftrace-style
|
|
event tracing.
|
|
|
|
Say Y here if you want to enable RCU tracing
|
|
Say N if you are unsure.
|
|
|
|
config RCU_EQS_DEBUG
|
|
bool "Provide debugging asserts for adding NO_HZ support to an arch"
|
|
depends on DEBUG_KERNEL
|
|
help
|
|
This option provides consistency checks in RCU's handling of
|
|
NO_HZ. These checks have proven quite helpful in detecting
|
|
bugs in arch-specific NO_HZ code.
|
|
|
|
Say N here if you need ultimate kernel/user switch latencies
|
|
Say Y if you are unsure
|
|
|
|
endmenu # "RCU Debugging"
|