| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Sun, 17 Jul 2011 21:51:45 +0200 |
| Subject: locking: Disable spin on owner for RT |
| |
| Drop spin on owner for mutex / rwsem. We are most likely not using it |
| but… |
| |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| --- |
| kernel/Kconfig.locks | 4 ++-- |
| 1 file changed, 2 insertions(+), 2 deletions(-) |
| |
| --- a/kernel/Kconfig.locks |
| +++ b/kernel/Kconfig.locks |
| @@ -225,11 +225,11 @@ 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 && !DEBUG_MUTEXES && ARCH_SUPPORTS_ATOMIC_RMW && !PREEMPT_RT_FULL |
| |
| config RWSEM_SPIN_ON_OWNER |
| def_bool y |
| - depends on SMP && RWSEM_XCHGADD_ALGORITHM && ARCH_SUPPORTS_ATOMIC_RMW |
| + depends on SMP && RWSEM_XCHGADD_ALGORITHM && ARCH_SUPPORTS_ATOMIC_RMW && !PREEMPT_RT_FULL |
| |
| config LOCK_SPIN_ON_OWNER |
| def_bool y |
