projects / thirdparty / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
| 43a0a2a7 PM |
2 | # |
| 3 | # RCU-related debugging configuration options | |
| 4 | # | |
| 5 | ||
| 6 | menu "RCU Debugging" | |
| 7 | ||
| 8 | config PROVE_RCU | |
| 9 | def_bool PROVE_LOCKING | |
| 10 | ||
| 28875945 JFG |
11 | config PROVE_RCU_LIST |
| 12 | bool "RCU list lockdep debugging" | |
| 13 | depends on PROVE_RCU && RCU_EXPERT | |
| 14 | default n | |
| 15 | help | |
| 16 | Enable RCU lockdep checking for list usages. By default it is | |
| 17 | turned off since there are several list RCU users that still | |
| 18 | need to be converted to pass a lockdep expression. To prevent | |
| 19 | false-positive splats, we keep it default disabled but once all | |
| 20 | users are converted, we can remove this config option. | |
| 21 | ||
| 43a0a2a7 PM |
22 | config TORTURE_TEST |
| 23 | tristate | |
| 24 | default n | |
| 25 | ||
| 26 | config RCU_PERF_TEST | |
| 27 | tristate "performance tests for RCU" | |
| 28 | depends on DEBUG_KERNEL | |
| 29 | select TORTURE_TEST | |
| 30 | select SRCU | |
| 31 | select TASKS_RCU | |
| 3d6e43c7 | 32 | select TASKS_RUDE_RCU |
| c1a76c0b | 33 | select TASKS_TRACE_RCU |
| 43a0a2a7 PM |
34 | default n |
| 35 | help | |
| 36 | This option provides a kernel module that runs performance | |
| 37 | tests on the RCU infrastructure. The kernel module may be built | |
| 38 | after the fact on the running kernel to be tested, if desired. | |
| 39 | ||
| 40 | Say Y here if you want RCU performance tests to be built into | |
| 41 | the kernel. | |
| 42 | Say M if you want the RCU performance tests to build as a module. | |
| 43 | Say N if you are unsure. | |
| 44 | ||
| 45 | config RCU_TORTURE_TEST | |
| 46 | tristate "torture tests for RCU" | |
| 47 | depends on DEBUG_KERNEL | |
| 48 | select TORTURE_TEST | |
| 49 | select SRCU | |
| 50 | select TASKS_RCU | |
| 3d6e43c7 | 51 | select TASKS_RUDE_RCU |
| c1a76c0b | 52 | select TASKS_TRACE_RCU |
| 43a0a2a7 PM |
53 | default n |
| 54 | help | |
| 55 | This option provides a kernel module that runs torture tests | |
| 56 | on the RCU infrastructure. The kernel module may be built | |
| 57 | after the fact on the running kernel to be tested, if desired. | |
| 58 | ||
| 59 | Say Y here if you want RCU torture tests to be built into | |
| 60 | the kernel. | |
| 61 | Say M if you want the RCU torture tests to build as a module. | |
| 62 | Say N if you are unsure. | |
| 63 | ||
| 64 | config RCU_CPU_STALL_TIMEOUT | |
| 65 | int "RCU CPU stall timeout in seconds" | |
| 66 | depends on RCU_STALL_COMMON | |
| 67 | range 3 300 | |
| 68 | default 21 | |
| 69 | help | |
| 70 | If a given RCU grace period extends more than the specified | |
| 71 | number of seconds, a CPU stall warning is printed. If the | |
| 72 | RCU grace period persists, additional CPU stall warnings are | |
| 73 | printed at more widely spaced intervals. | |
| 74 | ||
| 75 | config RCU_TRACE | |
| 76 | bool "Enable tracing for RCU" | |
| 77 | depends on DEBUG_KERNEL | |
| 78 | default y if TREE_RCU | |
| 79 | select TRACE_CLOCK | |
| 80 | help | |
| 81 | This option enables additional tracepoints for ftrace-style | |
| 82 | event tracing. | |
| 83 | ||
| 84 | Say Y here if you want to enable RCU tracing | |
| 85 | Say N if you are unsure. | |
| 86 | ||
| 87 | config RCU_EQS_DEBUG | |
| 88 | bool "Provide debugging asserts for adding NO_HZ support to an arch" | |
| 89 | depends on DEBUG_KERNEL | |
| 90 | help | |
| 91 | This option provides consistency checks in RCU's handling of | |
| 92 | NO_HZ. These checks have proven quite helpful in detecting | |
| 93 | bugs in arch-specific NO_HZ code. | |
| 94 | ||
| 95 | Say N here if you need ultimate kernel/user switch latencies | |
| 96 | Say Y if you are unsure | |
| 97 | ||
| 98 | endmenu # "RCU Debugging" |