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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 10:43:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 10:43:11 -0700
commit5704e44d283e907623e3775c1262f206a2c48cf3 (patch)
tree0a981b24173e90854e7b7d812b35859e1e5f0174 /lib
parent91151240ed8e97cc4457dae4094153c2744f1eb8 (diff)
parent6de5bd128d381ad88ac6d419a5e597048eb468cf (diff)
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Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: introduce CONFIG_BKL. dabusb: remove the BKL sunrpc: remove the big kernel lock init/main.c: remove BKL notations blktrace: remove the big kernel lock rtmutex-tester: make it build without BKL dvb-core: kill the big kernel lock dvb/bt8xx: kill the big kernel lock tlclk: remove big kernel lock fix rawctl compat ioctls breakage on amd64 and itanic uml: kill big kernel lock parisc: remove big kernel lock cris: autoconvert trivial BKL users alpha: kill big kernel lock isapnp: BKL removal s390/block: kill the big kernel lock hpet: kill BKL, add compat_ioctl
Diffstat (limited to 'lib')
-rw-r--r--lib/Kconfig.debug9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 21ac83070a8..7b2a8ca97ad 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -461,6 +461,15 @@ config DEBUG_MUTEXES
This feature allows mutex semantics violations to be detected and
reported.
+config BKL
+ bool "Big Kernel Lock" if (SMP || PREEMPT)
+ default y
+ help
+ This is the traditional lock that is used in old code instead
+ of proper locking. All drivers that use the BKL should depend
+ on this symbol.
+ Say Y here unless you are working on removing the BKL.
+
config DEBUG_LOCK_ALLOC
bool "Lock debugging: detect incorrect freeing of live locks"
depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT