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Commit 9aaffc89 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Linus Torvalds
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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: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: default avatarJosh Triplett <josh@kernel.org>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent cf6acedb

lib/Kconfig.debug

+1 −2
Original line number Diff line number Diff line
@@ -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.