Move c_src dirs back to toplevel

[bcachefs-tools-debian] / include / linux / percpu-rwsem.h

diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h
index c233e3ced8b9281b8a06365c74c518b528e335ed..153251c076856821bc25b2ab85914b672b1fe938 100644 (file)
--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -7,63 +7,49 @@
 #include <linux/preempt.h>
 
 struct percpu_rw_semaphore {
-       pthread_rwlock_t        lock;
+       pthread_mutex_t         lock;
 };
 
-#define DEFINE_STATIC_PERCPU_RWSEM(name)                               \
-static DEFINE_PER_CPU(unsigned int, __percpu_rwsem_rc_##name);         \
-static struct percpu_rw_semaphore name = {                             \
-       .rss = __RCU_SYNC_INITIALIZER(name.rss, RCU_SCHED_SYNC),        \
-       .read_count = &__percpu_rwsem_rc_##name,                        \
-       .rw_sem = __RWSEM_INITIALIZER(name.rw_sem),                     \
-       .writer = __RCUWAIT_INITIALIZER(name.writer),                   \
-}
-
-extern int __percpu_down_read(struct percpu_rw_semaphore *, int);
-extern void __percpu_up_read(struct percpu_rw_semaphore *);
-
 static inline void percpu_down_read_preempt_disable(struct percpu_rw_semaphore *sem)
 {
-       pthread_rwlock_rdlock(&sem->lock);
-       preempt_disable();
+       pthread_mutex_lock(&sem->lock);
 }
 
 static inline void percpu_down_read(struct percpu_rw_semaphore *sem)
 {
-       pthread_rwlock_rdlock(&sem->lock);
+       pthread_mutex_lock(&sem->lock);
 }
 
 static inline int percpu_down_read_trylock(struct percpu_rw_semaphore *sem)
 {
-       return !pthread_rwlock_tryrdlock(&sem->lock);
+       return !pthread_mutex_trylock(&sem->lock);
 }
 
 static inline void percpu_up_read_preempt_enable(struct percpu_rw_semaphore *sem)
 {
-       preempt_enable();
-       pthread_rwlock_unlock(&sem->lock);
+       pthread_mutex_unlock(&sem->lock);
 }
 
 static inline void percpu_up_read(struct percpu_rw_semaphore *sem)
 {
-       pthread_rwlock_unlock(&sem->lock);
+       pthread_mutex_unlock(&sem->lock);
 }
 
 static inline void percpu_down_write(struct percpu_rw_semaphore *sem)
 {
-       pthread_rwlock_wrlock(&sem->lock);
+       pthread_mutex_lock(&sem->lock);
 }
 
 static inline void percpu_up_write(struct percpu_rw_semaphore *sem)
 {
-       pthread_rwlock_unlock(&sem->lock);
+       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_rwlock_init(&sem->lock, NULL);
+       pthread_mutex_init(&sem->lock, NULL);
        return 0;
 }