s390/spinlock: remove confusing comment in arch_spin_lock_wait

arch_spin_lock_wait does not take steal time into consideration.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index ce1e4bb..9b2dab5 100644 (file)
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -242,7 +242,6 @@ static inline void arch_spin_lock_classic(arch_spinlock_t *lp)
 
 void arch_spin_lock_wait(arch_spinlock_t *lp)
 {
-       /* Use classic spinlocks + niai if the steal time is >= 10% */
        if (test_cpu_flag(CIF_DEDICATED_CPU))
                arch_spin_lock_queued(lp);
        else