diff options
Diffstat (limited to 'c_src/include/linux/percpu-rwsem.h')
-rw-r--r-- | c_src/include/linux/percpu-rwsem.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/c_src/include/linux/percpu-rwsem.h b/c_src/include/linux/percpu-rwsem.h new file mode 100644 index 00000000..153251c0 --- /dev/null +++ b/c_src/include/linux/percpu-rwsem.h @@ -0,0 +1,58 @@ + +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_PERCPU_RWSEM_H +#define _LINUX_PERCPU_RWSEM_H + +#include <pthread.h> +#include <linux/preempt.h> + +struct percpu_rw_semaphore { + pthread_mutex_t lock; +}; + +static inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_lock(&sem->lock); +} + +static inline void percpu_down_read(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_lock(&sem->lock); +} + +static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem) +{ + return !pthread_mutex_trylock(&sem->lock); +} + +static inline void percpu_up_read_preempt_enable(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_unlock(&sem->lock); +} + +static inline void percpu_up_read(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_unlock(&sem->lock); +} + +static inline void percpu_down_write(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_lock(&sem->lock); +} + +static inline void percpu_up_write(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_unlock(&sem->lock); +} + +static inline void percpu_free_rwsem(struct percpu_rw_semaphore *sem) {} + +static inline int percpu_init_rwsem(struct percpu_rw_semaphore *sem) +{ + pthread_mutex_init(&sem->lock, NULL); + return 0; +} + +#define percpu_rwsem_assert_held(sem) do {} while (0) + +#endif |