preempt: Adjust PREEMPT_LOCK_OFFSET for RT

On PREEMPT_RT regular spinlocks and rwlocks are substituted with rtmutex
based constructs. spin/rwlock held regions are preemptible on PREEMPT_RT,
so PREEMPT_LOCK_OFFSET has to be 0 to make the various cond_resched_*lock()
functions work correctly.

Signed-off-by: Thomas Gleixner <>
Signed-off-by: Peter Zijlstra (Intel) <>
Signed-off-by: Ingo Molnar <>
1 file changed