Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Levin, Alexander (Sasha Levin) | e58e871 | 2017-05-31 00:38:09 +0000 | [diff] [blame] | 2 | #ifndef __LINUX_SPINLOCK_H_ |
| 3 | #define __LINUX_SPINLOCK_H_ |
| 4 | |
| 5 | #include <pthread.h> |
| 6 | #include <stdbool.h> |
| 7 | |
Matthew Wilcox | 12ea653 | 2016-12-16 14:53:45 -0500 | [diff] [blame] | 8 | #define spinlock_t pthread_mutex_t |
Ross Zwisler | dcbbf25 | 2018-05-18 16:08:54 -0700 | [diff] [blame] | 9 | #define DEFINE_SPINLOCK(x) pthread_mutex_t x = PTHREAD_MUTEX_INITIALIZER |
Matthew Wilcox | f6bb2a2 | 2018-04-10 16:36:52 -0700 | [diff] [blame] | 10 | #define __SPIN_LOCK_UNLOCKED(x) (pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER |
Matthew Wilcox | 9b89a03 | 2017-11-10 09:34:31 -0500 | [diff] [blame] | 11 | #define spin_lock_init(x) pthread_mutex_init(x, NULL) |
Matthew Wilcox | 12ea653 | 2016-12-16 14:53:45 -0500 | [diff] [blame] | 12 | |
Matthew Wilcox | 9b89a03 | 2017-11-10 09:34:31 -0500 | [diff] [blame] | 13 | #define spin_lock(x) pthread_mutex_lock(x) |
| 14 | #define spin_unlock(x) pthread_mutex_unlock(x) |
| 15 | #define spin_lock_bh(x) pthread_mutex_lock(x) |
| 16 | #define spin_unlock_bh(x) pthread_mutex_unlock(x) |
| 17 | #define spin_lock_irq(x) pthread_mutex_lock(x) |
| 18 | #define spin_unlock_irq(x) pthread_mutex_unlock(x) |
Matthew Wilcox | 12ea653 | 2016-12-16 14:53:45 -0500 | [diff] [blame] | 19 | #define spin_lock_irqsave(x, f) (void)f, pthread_mutex_lock(x) |
| 20 | #define spin_unlock_irqrestore(x, f) (void)f, pthread_mutex_unlock(x) |
Levin, Alexander (Sasha Levin) | e58e871 | 2017-05-31 00:38:09 +0000 | [diff] [blame] | 21 | |
| 22 | #define arch_spinlock_t pthread_mutex_t |
| 23 | #define __ARCH_SPIN_LOCK_UNLOCKED PTHREAD_MUTEX_INITIALIZER |
| 24 | |
| 25 | static inline void arch_spin_lock(arch_spinlock_t *mutex) |
| 26 | { |
| 27 | pthread_mutex_lock(mutex); |
| 28 | } |
| 29 | |
| 30 | static inline void arch_spin_unlock(arch_spinlock_t *mutex) |
| 31 | { |
| 32 | pthread_mutex_unlock(mutex); |
| 33 | } |
| 34 | |
| 35 | static inline bool arch_spin_is_locked(arch_spinlock_t *mutex) |
| 36 | { |
| 37 | return true; |
| 38 | } |
| 39 | |
Matthew Wilcox | 58d6ea3 | 2017-11-10 15:15:08 -0500 | [diff] [blame] | 40 | #include <linux/lockdep.h> |
| 41 | |
Levin, Alexander (Sasha Levin) | e58e871 | 2017-05-31 00:38:09 +0000 | [diff] [blame] | 42 | #endif |