diff options
Diffstat (limited to 'include/linux/spinlock_api_up.h')
| -rw-r--r-- | include/linux/spinlock_api_up.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/spinlock_api_up.h b/include/linux/spinlock_api_up.h index a9d5c7c66e03..d03d3065ee04 100644 --- a/include/linux/spinlock_api_up.h +++ b/include/linux/spinlock_api_up.h @@ -42,6 +42,9 @@ #define __LOCK_IRQSAVE(lock, flags, ...) \ do { local_irq_save(flags); __LOCK(lock, ##__VA_ARGS__); } while (0) +#define __LOCK_IRQ_DISABLE(lock, ...) \ + do { local_interrupt_disable(); __LOCK(lock, ##__VA_ARGS__); } while (0) + #define ___UNLOCK_(lock) \ do { __release(lock); (void)(lock); } while (0) @@ -61,6 +64,9 @@ #define __UNLOCK_IRQRESTORE(lock, flags, ...) \ do { local_irq_restore(flags); __UNLOCK(lock, ##__VA_ARGS__); } while (0) +#define __UNLOCK_IRQ_ENABLE(lock, ...) \ + do { __UNLOCK(lock, ##__VA_ARGS__); local_interrupt_enable(); } while (0) + #define _raw_spin_lock(lock) __LOCK(lock) #define _raw_spin_lock_nested(lock, subclass) __LOCK(lock) #define _raw_read_lock(lock) __LOCK(lock, shared) @@ -70,6 +76,7 @@ #define _raw_read_lock_bh(lock) __LOCK_BH(lock, shared) #define _raw_write_lock_bh(lock) __LOCK_BH(lock) #define _raw_spin_lock_irq(lock) __LOCK_IRQ(lock) +#define _raw_spin_lock_irq_disable(lock) __LOCK_IRQ_DISABLE(lock) #define _raw_read_lock_irq(lock) __LOCK_IRQ(lock, shared) #define _raw_write_lock_irq(lock) __LOCK_IRQ(lock) #define _raw_spin_lock_irqsave(lock, flags) __LOCK_IRQSAVE(lock, flags) @@ -97,6 +104,13 @@ static __always_inline int _raw_spin_trylock_irq(raw_spinlock_t *lock) return 1; } +static __always_inline int _raw_spin_trylock_irq_disable(raw_spinlock_t *lock) + __cond_acquires(true, lock) +{ + __LOCK_IRQ_DISABLE(lock); + return 1; +} + static __always_inline int _raw_spin_trylock_irqsave(raw_spinlock_t *lock, unsigned long *flags) __cond_acquires(true, lock) { @@ -132,6 +146,7 @@ static __always_inline int _raw_write_trylock_irqsave(rwlock_t *lock, unsigned l #define _raw_write_unlock_bh(lock) __UNLOCK_BH(lock) #define _raw_read_unlock_bh(lock) __UNLOCK_BH(lock, shared) #define _raw_spin_unlock_irq(lock) __UNLOCK_IRQ(lock) +#define _raw_spin_unlock_irq_enable(lock) __UNLOCK_IRQ_ENABLE(lock) #define _raw_read_unlock_irq(lock) __UNLOCK_IRQ(lock, shared) #define _raw_write_unlock_irq(lock) __UNLOCK_IRQ(lock) #define _raw_spin_unlock_irqrestore(lock, flags) \ |