projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff
? search:
summary | shortlog | log | commit | commitdiff | tree
raw | patch | inline | side by side (parent: 890658b)
locking/mutex: Allow MUTEX_SPIN_ON_OWNER when DEBUG_MUTEXES
authorPeter Zijlstra <peterz@infradead.org>
Tue, 23 Aug 2016 11:45:15 +0000 (13:45 +0200)
committerIngo Molnar <mingo@kernel.org>
Tue, 25 Oct 2016 09:31:51 +0000 (11:31 +0200)
Now that mutex::count and mutex::owner are the same field, we can
allow SPIN_ON_OWNER while DEBUG_MUTEX.

Tested-by: Jason Low <jason.low2@hpe.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/Kconfig.locks patch | blob | blame | history

diff --git a/kernel/Kconfig.locks b/kernel/Kconfig.locks
index ebdb0043203adb339e7b917dd3bb28b47d2ee480..84d882f3e2993b9ce3fdef1cc6aff5c52a8f4622 100644 (file)
--- a/kernel/Kconfig.locks
+++ b/kernel/Kconfig.locks
@@ -225,7 +225,7 @@ config ARCH_SUPPORTS_ATOMIC_RMW
 
 config MUTEX_SPIN_ON_OWNER
        def_bool y
-       depends on SMP && !DEBUG_MUTEXES && ARCH_SUPPORTS_ATOMIC_RMW
+       depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
 
 config RWSEM_SPIN_ON_OWNER
        def_bool y