diff options
Diffstat (limited to 'include/linux/rwlock.h')
| -rw-r--r-- | include/linux/rwlock.h | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/include/linux/rwlock.h b/include/linux/rwlock.h index 5b87c6f4a243..151f9d5f3288 100644 --- a/include/linux/rwlock.h +++ b/include/linux/rwlock.h @@ -22,23 +22,24 @@ do { \ static struct lock_class_key __key; \ \ __rwlock_init((lock), #lock, &__key); \ + __assume_ctx_lock(lock); \ } while (0) #else # define rwlock_init(lock) \ - do { *(lock) = __RW_LOCK_UNLOCKED(lock); } while (0) + do { *(lock) = __RW_LOCK_UNLOCKED(lock); __assume_ctx_lock(lock); } while (0) #endif #ifdef CONFIG_DEBUG_SPINLOCK - extern void do_raw_read_lock(rwlock_t *lock) __acquires(lock); + extern void do_raw_read_lock(rwlock_t *lock) __acquires_shared(lock); extern int do_raw_read_trylock(rwlock_t *lock); - extern void do_raw_read_unlock(rwlock_t *lock) __releases(lock); + extern void do_raw_read_unlock(rwlock_t *lock) __releases_shared(lock); extern void do_raw_write_lock(rwlock_t *lock) __acquires(lock); extern int do_raw_write_trylock(rwlock_t *lock); extern void do_raw_write_unlock(rwlock_t *lock) __releases(lock); #else -# define do_raw_read_lock(rwlock) do {__acquire(lock); arch_read_lock(&(rwlock)->raw_lock); } while (0) +# define do_raw_read_lock(rwlock) do {__acquire_shared(lock); arch_read_lock(&(rwlock)->raw_lock); } while (0) # define do_raw_read_trylock(rwlock) arch_read_trylock(&(rwlock)->raw_lock) -# define do_raw_read_unlock(rwlock) do {arch_read_unlock(&(rwlock)->raw_lock); __release(lock); } while (0) +# define do_raw_read_unlock(rwlock) do {arch_read_unlock(&(rwlock)->raw_lock); __release_shared(lock); } while (0) # define do_raw_write_lock(rwlock) do {__acquire(lock); arch_write_lock(&(rwlock)->raw_lock); } while (0) # define do_raw_write_trylock(rwlock) arch_write_trylock(&(rwlock)->raw_lock) # define do_raw_write_unlock(rwlock) do {arch_write_unlock(&(rwlock)->raw_lock); __release(lock); } while (0) @@ -49,7 +50,7 @@ do { \ * regardless of whether CONFIG_SMP or CONFIG_PREEMPT are set. The various * methods are defined as nops in the case they are not required. */ -#define read_trylock(lock) __cond_lock(lock, _raw_read_trylock(lock)) +#define read_trylock(lock) __cond_lock_shared(lock, _raw_read_trylock(lock)) #define write_trylock(lock) __cond_lock(lock, _raw_write_trylock(lock)) #define write_lock(lock) _raw_write_lock(lock) @@ -112,12 +113,12 @@ do { \ } while (0) #define write_unlock_bh(lock) _raw_write_unlock_bh(lock) -#define write_trylock_irqsave(lock, flags) \ -({ \ - local_irq_save(flags); \ - write_trylock(lock) ? \ - 1 : ({ local_irq_restore(flags); 0; }); \ -}) +#define write_trylock_irqsave(lock, flags) \ + __cond_lock(lock, ({ \ + local_irq_save(flags); \ + _raw_write_trylock(lock) ? \ + 1 : ({ local_irq_restore(flags); 0; }); \ + })) #ifdef arch_rwlock_is_contended #define rwlock_is_contended(lock) \ |