diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/spinlock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index a289a20a2484..a16b041fee5b 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -179,6 +179,7 @@ typedef struct { #define _raw_read_unlock(lock) do { (void)(lock); } while(0) #define _raw_write_lock(lock) do { (void)(lock); } while(0) #define _raw_write_unlock(lock) do { (void)(lock); } while(0) +#define _raw_write_trylock(lock) ({ (void)(lock); (1); }) #endif /* !SMP */ |