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torture: Remove CONFIG_RCU_TORTURE_TEST_RUNNABLE, simplify code

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This commit removes CONFIG_RCU_TORTURE_TEST_RUNNABLE in favor of the
already-existing rcutorture.torture_runnable kernel boot parameter.
It also converts an #ifdef into IS_ENABLED(), saving a few lines of code.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2016-04-19 14:42:34 -07:00
parent f8cbdee99b
commit 4e9a073f60
3 changed files with 1 additions and 25 deletions
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7
kernel/rcu/rcutorture.c
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@ -182,12 +182,7 @@ static const char *rcu_torture_writer_state_getname(void)
return rcu_torture_writer_state_names[i]; return rcu_torture_writer_state_names[i];
} }
#if defined(MODULE) || defined(CONFIG_RCU_TORTURE_TEST_RUNNABLE) static int torture_runnable = IS_ENABLED(MODULE);
#define RCUTORTURE_RUNNABLE_INIT 1
#else
#define RCUTORTURE_RUNNABLE_INIT 0
#endif
static int torture_runnable = RCUTORTURE_RUNNABLE_INIT;
module_param(torture_runnable, int, 0444); module_param(torture_runnable, int, 0444);
MODULE_PARM_DESC(torture_runnable, "Start rcutorture at boot"); MODULE_PARM_DESC(torture_runnable, "Start rcutorture at boot");

2
kernel/rcu/tree_plugin.h
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@ -79,8 +79,6 @@ static void __init rcu_bootup_announce_oddness(void)
pr_info("\tRCU dyntick-idle grace-period acceleration is enabled.\n"); pr_info("\tRCU dyntick-idle grace-period acceleration is enabled.\n");
if (IS_ENABLED(CONFIG_PROVE_RCU)) if (IS_ENABLED(CONFIG_PROVE_RCU))
pr_info("\tRCU lockdep checking is enabled.\n"); pr_info("\tRCU lockdep checking is enabled.\n");
if (IS_ENABLED(CONFIG_RCU_TORTURE_TEST_RUNNABLE))
pr_info("\tRCU torture testing starts during boot.\n");
if (RCU_NUM_LVLS >= 4) if (RCU_NUM_LVLS >= 4)
pr_info("\tFour(or more)-level hierarchy is enabled.\n"); pr_info("\tFour(or more)-level hierarchy is enabled.\n");
if (RCU_FANOUT_LEAF != 16) if (RCU_FANOUT_LEAF != 16)

17
lib/Kconfig.debug
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@ -1324,23 +1324,6 @@ config RCU_TORTURE_TEST
Say M if you want the RCU torture tests to build as a module. Say M if you want the RCU torture tests to build as a module.
Say N if you are unsure. Say N if you are unsure.
config RCU_TORTURE_TEST_RUNNABLE
bool "torture tests for RCU runnable by default"
depends on RCU_TORTURE_TEST = y
default n
help
This option provides a way to build the RCU torture tests
directly into the kernel without them starting up at boot
time. You can use /proc/sys/kernel/rcutorture_runnable
to manually override this setting. This /proc file is
available only when the RCU torture tests have been built
into the kernel.
Say Y here if you want the RCU torture tests to start during
boot (you probably don't).
Say N here if you want the RCU torture tests to start only
after being manually enabled via /proc.
config RCU_TORTURE_TEST_SLOW_PREINIT config RCU_TORTURE_TEST_SLOW_PREINIT
bool "Slow down RCU grace-period pre-initialization to expose races" bool "Slow down RCU grace-period pre-initialization to expose races"
depends on RCU_TORTURE_TEST depends on RCU_TORTURE_TEST