diff options
Diffstat (limited to 'arch/ia64/include')
| -rw-r--r-- | arch/ia64/include/asm/spinlock.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h index 54ff557d474..45698cd15b7 100644 --- a/arch/ia64/include/asm/spinlock.h +++ b/arch/ia64/include/asm/spinlock.h @@ -102,6 +102,11 @@ static inline int __ticket_spin_is_contended(arch_spinlock_t *lock) return ((tmp - (tmp >> TICKET_SHIFT)) & TICKET_MASK) > 1; } +static __always_inline int arch_spin_value_unlocked(arch_spinlock_t lock) +{ + return !(((lock.lock >> TICKET_SHIFT) ^ lock.lock) & TICKET_MASK); +} + static inline int arch_spin_is_locked(arch_spinlock_t *lock) { return __ticket_spin_is_locked(lock); |