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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2007-05-23 13:57:41 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-23 20:14:12 -0700
commit9aaffc898ff4a3df18c5fc4b9e0fa47e779ad726 (patch)
tree184caf9ce53a2b107d0fc89b3f90efbf9cc5c515 /lib
parentcf6acedbeac17dea1c1eed85048a72e188f3f768 (diff)
downloadlinux-linaro-9aaffc898ff4a3df18c5fc4b9e0fa47e779ad726.tar.gz
prohibit rcutorture from being compiled into the kernel
There have been a number of instances where people have accidentally compiled rcutorture into the kernel (CONFIG_RCU_TORTURE_TEST=y), which has never been useful, and has often resulted in great frustration. The attached patch prohibits rcutorture from being compiled into the kernel. It may be excluded altogether or compiled as a module. People wishing to have rcutorture hammer their machine immediately upon boot are free to hand-edit lib/Kconfig.debug to remove the "depends on m" line. Thanks to Randy Dunlap for the trick that makes this work. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Josh Triplett <josh@kernel.org> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug3
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index fbc5c622acb..1ba77ca7d16 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -378,14 +378,13 @@ config FORCED_INLINING
config RCU_TORTURE_TEST
tristate "torture tests for RCU"
depends on DEBUG_KERNEL
+ depends on m
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 start automatically
- at boot time (you probably don't).
Say M if you want the RCU torture tests to build as a module.
Say N if you are unsure.