diff options
Diffstat (limited to 'include/asm-sh')
| -rw-r--r-- | include/asm-sh/atomic.h | 2 | ||||
| -rw-r--r-- | include/asm-sh/mutex.h | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h index 618d8e0de34..fb627de217f 100644 --- a/include/asm-sh/atomic.h +++ b/include/asm-sh/atomic.h @@ -101,6 +101,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new) return ret; } +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) + static inline int atomic_add_unless(atomic_t *v, int a, int u) { int ret; diff --git a/include/asm-sh/mutex.h b/include/asm-sh/mutex.h new file mode 100644 index 00000000000..458c1f7fbc1 --- /dev/null +++ b/include/asm-sh/mutex.h @@ -0,0 +1,9 @@ +/* + * Pull in the generic implementation for the mutex fastpath. + * + * TODO: implement optimized primitives instead, or leave the generic + * implementation in place, or pick the atomic_xchg() based generic + * implementation. (see asm-generic/mutex-xchg.h for details) + */ + +#include <asm-generic/mutex-dec.h> |